Asus P7H55-M User Manual
Motherboard P7H55-M/USB3
ii E5846 First Edition V1 May 2010 Copyright © 2010 ASUST eK Computer Inc. All Rights Reserved. No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUST eK Computer Inc. (âASUSâ). Product warranty or service will not be extended if: (1) the product is repaired, modiîed or altered, unless such repair , modiîcation of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. ASUS PROVIDES THIS MANUAL âAS ISâ WITHOUT W ARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANT ABILITY OR FITNESS FOR A P ARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT , SPECIAL, INCIDENT AL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DA T A, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT . SPECIFICA TIONS AND INFORMA TION CONT AINED IN THIS MANUAL ARE FURNISHED FOR INFORMA TIONAL USE ONL Y , AND ARE SUBJECT TO CHANGE A T ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THA T MA Y APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT . Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identiîcation or explanation and to the ownersâ beneît, without intent to infringe. Offer to Provide Source Code of Certain Software This product may contain copyrighted software that is licensed under the General Public License (âGPLâ) and under the Lesser General Public License V ersion (âLGPLâ). The GPL and LGPL licensed code in this product is distributed without any warranty . Copies of these licenses are included in this product. Y ou may obtain the complete corresponding source code (as deîned in the GPL) for the GPL Software, and/or the complete corresponding source code of the LGPL Software (with the complete machine- readable âwork that uses the Libraryâ) for a period of three years after our last shipment of the product including the GPL Software and/or LGPL Software, which will be no earlier than December 1, 201 1, either (1) for free by downloading it from http://support.asus.com/download; or (2) for the cost of reproduction and shipment, which is dependent on the preferred carrier and the location where you want to have it shipped to, by sending a request to: ASUST eK Computer Inc. Legal Compliance Dept. 15 Li T e Rd., Beitou, T aipei 1 12 T aiwan In your request please provide the name, model number and version, as stated in the About Box of the product for which you wish to obtain the corresponding source code and your contact details so that we can coordinate the terms and cost of shipment with you. The source code will be distributed WITHOUT ANY W ARRANTY and licensed under the same license as the corresponding binary/object code. This offer is valid to anyone in receipt of this information. ASUST eK is eager to duly provide complete source code as required under various Free Op en Source Software licenses. If however you encounter any problems in obtaining the full corresponding source code we would be much obliged if you give us a notiîcation to the email address gpl@asus.com, stating the product and describing the problem (please do NOT send large attachments such as source code archives etc to this email address).
iii Contents Notices ........................................................................................................ vii Safety information .................................................................................... viii About this guide ....................................................................................... viii P7H55-M/USB3 speciîcations summary ................................................... x Chapter 1: Product introduction 1.1 Welcome! ...................................................................................... 1-1 1.2 Package contents ......................................................................... 1-1 1.3 Special features ............................................................................ 1-1 1.3.1 Product highlights ........................................................... 1-1 1.3.2 Innovative ASUS features ............................................... 1-3 1.4 Before you proceed ..................................................................... 1-6 1.5 Motherboard overview ................................................................. 1-7 1.5.1 Placement direction ........................................................ 1-7 1.5.2 Screw holes .................................................................... 1-7 1.5.3 Motherboard layout ......................................................... 1-8 1.5.4 Layout contents ............................................................... 1-8 1.6 Central Processing Unit (CPU) ................................................... 1-9 1.6.1 Installing the CPU ........................................................... 1-9 1.6.2 Installing the CPU heatsink and fan .............................. 1-12 1.6.3 Uninstalling the CPU heatsink and fan ......................... 1-13 1.7 System memory ......................................................................... 1-14 1.7.1 Overview ....................................................................... 1-14 1.7.2 Memory conîgurations .................................................. 1-15 1.7.3 Installing a DIMM .......................................................... 1-22 1.7.4 Removing a DIMM ........................................................ 1-22 1.8 Expansion slots .......................................................................... 1-23 1.8.1 Installing an expansion card ......................................... 1-23 1.8.2 Conîguring an expansion card ..................................... 1-23 1.8.3 PCI slot ......................................................................... 1-23 1.8.4 PCI Express x1 slots ..................................................... 1-23 1.8.5 PCI Express x16 slot ..................................................... 1-23 1.9 Jumpers ...................................................................................... 1-24 1.10 Connectors ................................................................................. 1-25 1.10.1 Rear panel connectors .................................................. 1-25 1.10.2 Internal connectors ....................................................... 1-26
iv Contents 1.1 1 Software support ........................................................................ 1-32 1.1 1.1 Installing an operating system ...................................... 1-32 1.1 1.2 Support DVD information .............................................. 1-32 Chapter 2: BIOS information 2.1 Managing and updating your BIOS ............................................ 2-1 2.1.1 ASUS Update utility ........................................................ 2-1 2.1.2 ASUS EZ Flash 2 ............................................................ 2-2 2.1.3 ASUS CrashFree BIOS ................................................... 2-3 2.1.4 ASUS BIOS Updater ....................................................... 2-3 2.2 BIOS setup program .................................................................... 2-6 2.2.1 BIOS menu screen .......................................................... 2-7 2.2.2 Menu bar ......................................................................... 2-7 2.2.3 Navigation keys ............................................................... 2-7 2.2.4 Menu items ..................................................................... 2-7 2.2.5 Submenu items ............................................................... 2-8 2.2.6 Conîguration îelds ......................................................... 2-8 2.2.7 Pop-up window ............................................................... 2-8 2.2.8 Scroll bar ......................................................................... 2-8 2.2.9 General help ................................................................... 2-8 2.3 Main menu .................................................................................... 2-8 2.3.1 System T ime [xx:xx:xx] ................................................... 2-9 2.3.2 System Date [Day xx/xx/xxxx] ......................................... 2-9 2.3.3 Language [English] ......................................................... 2-9 2.3.4 SA T A1~6 ......................................................................... 2-9 2.3.5 Storage Conîguration ................................................... 2-10 2.3.6 3rd Party Storage Conîguration ................................... 2-10 2.3.7 System Information ........................................................ 2-1 1 2.4 Ai T weaker menu ........................................................................ 2-12 2.4.1 Ai Overclock T uner [Auto] ............................................. 2-12 2.4.2 CPU Ratio Setting [Auto] .............................................. 2-13 2.4.3 Intel(R) SpeedStep(TM) T ech [Enabled] ....................... 2-13 2.4.4 Xtreme Phase Full Power Mode [Auto] ......................... 2-13 2.4.5 BCLK Frequency [XXX] ................................................ 2-14 2.4.6 PCIE Frequency [100] ................................................... 2-14
v Contents 2.4.7 DRAM Frequency [Auto] ............................................... 2-14 2.4.8 QPI Frequency [Auto] ................................................... 2-14 2.4.9 OC T uner Utility ............................................................. 2-14 2.4.10 OC T uner Limit V alue .................................................... 2-14 2.4.1 1 DRAM T iming Control [Auto] ......................................... 2-14 2.4.12 CPU Differential Amplitude [Auto] ................................. 2-16 2.4.13 CPU Clock Skew [Auto] ................................................ 2-16 2.4.14 CPU V oltage Mode [Offset] .......................................... 2-16 2.4.15 IMC V oltage [Auto] ....................................................... 2-17 2.4.16 DRAM V oltage [Auto] ................................................... 2-17 2.4.17 CPU PLL V oltage [Auto] ................................................ 2-17 2.4.18 PCH V oltage [Auto] ....................................................... 2-17 2.4.19 DRAM DA T A REF V oltage on CHA/B [Auto] ................. 2-17 2.4.20 Auto PSI [Enabled] ........................................................ 2-17 2.4.21 Load-Line Calibration [Auto] ......................................... 2-17 2.4.22 PCIE Spread Spectrum [Auto] ...................................... 2-17 2.4.23 PCI/PCIe CLK Status [Enabled] .................................... 2-17 2.5 Advanced menu ......................................................................... 2-18 2.5.1 CPU Conîguration ........................................................ 2-18 2.5.2 Uncore Conîguration .................................................... 2-20 2.5.3 Onboard Devices Conîguration .................................... 2-20 2.5.4 USB Conîguration ........................................................ 2-21 2.5.5 PCIPnP ......................................................................... 2-22 2.5.6 Intel VT -d [Disabled] ...................................................... 2-22 2.6 Power menu ................................................................................ 2-22 2.6.1 Suspend Mode [Auto] ................................................... 2-22 2.6.2 ACPI 2.0 Support [Enabled] .......................................... 2-22 2.6.3 ACPI APIC Support [Enabled] ....................................... 2-23 2.6.4 Anti Surge Support [Enabled] ....................................... 2-23 2.6.5 APM Conîguration ........................................................ 2-23 2.6.6 Hardware Monitor ......................................................... 2-24 2.7 Boot menu .................................................................................. 2-25 2.7.1 Boot Device Priority ...................................................... 2-25 2.7.2 Boot Settings Conîguration .......................................... 2-26 2.7.3 Security ......................................................................... 2-27
vi 2.8 T ools menu ................................................................................. 2-28 2.8.1 ASUS O.C. Proîle ......................................................... 2-28 2.8.2 AI NET 2 ........................................................................ 2-29 2.8.3 ASUS EZ Flash 2 .......................................................... 2-29 2.8.4 Express Gate [Disabled] ............................................... 2-29 2.8.5 IO LevelUp [Disabled] ................................................... 2-29 2.9 Exit menu .................................................................................... 2-30
vii Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: ⢠This device may not cause harmful interference, and ⢠This device must accept any interference received including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with manufacturer âs instructions, may cause harmful interference to radio communications. However , there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ⢠Reorient or relocate the receiving antenna. ⢠Increase the separation between the equipment and receiver . ⢠Connect the equipment to an outlet on a circuit different from that to which the receiver is connected. ⢠Consult the dealer or an experienced radio/TV technician for help. The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations. Changes or modiîcations to this unit not expressly approved by the party responsible for compliance could void the user âs authority to operate this equipment. Canadian Department of Communications Statement This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. This class B digital apparatus complies with Canadian ICES-003. DO NOT throw the motherboard in municipal waste. This product has been designed to enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin indicates that the product (electrical and electronic equipment) should not be placed in municipal waste. Check local regulations for disposal of electronic products. DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol of the crossed out wheeled bin indicates that the battery should not be placed in municipal waste. REACH Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulatory framework, we published the chemical substances in our products at ASUS REACH website at http://green.asus.com/english/REACH.htm.
viii Safety information Electrical safety ⢠T o prevent electric shock hazard, disconnect the power cable from the electric outlet before relocating the system. ⢠When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device. ⢠Before connecting or removing signal cables from the motherboard, ensure that all power cables are unplugged. ⢠Seek professional assistance before using an adapter or extension cord. These devices could interrupt the grounding circuit. ⢠Ensure that your power supply is set to the correct voltage in your area. If you are not sure about the voltage of the electrical outlet you are using, contact your local power company . ⢠If the power supply is broken, do not try to îx it by yourself. Contact a qualiîed service technician or your retailer . Operation safety ⢠Before installing the motherboard and adding devices on it, carefully read all the manuals that came with the package. ⢠Before using the product, ensure that all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer immediately . ⢠T o avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry . ⢠Avoid dust, humidity , and temperature extremes. Do not place the product in any area where it may become wet. ⢠Place the product on a stable surface. ⢠If you encounter technical problems with the product, contact a qualiîed service technician or your retailer . About this guide This user guide contains the information you need when installing and conîguring the motherboard. How this guide is organized This guide contains the following parts: ⢠Chapter 1: Product introduction This chapter describes the features of the motherboard and the new technology it supports. ⢠Chapter 2: BIOS information This chapter tells how to change system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided.
ix Conventions used in this guide T o ensure that you perform certain tasks properly , take note of the following symbols used throughout this manual. DANGER/W ARNING: Information to prevent injury to yourself when trying to complete a task. CAUTION: Information to prevent damage to the components when trying to complete a task. NOTE: T ips and additional information to help you complete a task. IMPORT ANT : Instructions that you MUST follow to complete a task. Where to înd more information Refer to the following sources for additional information and for product and software updates. 1. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information. 2. Optional documentation Y our product package may include optional documentation, such as warranty îyers, that may have been added by your dealer . These documents are not part of the standard package. T ypography Bold text Indicates a menu or an item to select. Italics Used to emphasize a word or a phrase. <Key> Keys enclosed in the less-than and greater-than sign means that you must press the enclosed key . Example: <Enter> means that you must press the Enter or Return key . <Key1> <Key2> <Key3> If you must press two or more keys simultaneously , the key names are linked with a plus sign ( ). Example: <Ctrl> <Alt> <D>
x P7H55-M/USB3 speciîcations summary (continued on the next page) CPU LGA1 156 socket for Intel ® Core⢠i7/ Core⢠i5/ Core⢠i3/ Pentium ® processors Supports Intel ® T urbo Boost T echnology * The Intel ® T urbo Boost T echnology support depends on the CPU types. ** Refer to www .asus.com for Intel ® CPU support list. Chipset Intel ® H55 Express Chipset Memory Dual-channel memory architecture 4 x 240-pin DIMM slots support maximum 16GB unbuffered non-ECC DDR3 2200(O.C.)/ 2133/ 2000/ 1866/ 1800/ 1600/ 1333/ 1066MHz memory modules * T o achieve DDR3âs frequency of 2200 MHz, use an Intel Core i7/ Core i5 CPU without the iGPU feature and install a VGA card. If you use Intel Core i5/ Core i3/ Pentium CPU with the iGPU feature, the maximum frequency is around 1600 MHz. ** Supports Intel ® Extreme Memory Proîle (XMP) *** Hyper DIMM support is subject to the physical characteristics of individual CPUs. Some hyper DIMMs only support one DIMM per channel. **** Refer to www .asus.com for the latest Memory QVL (Qualiîed V endors List). ***** When you install a total memory of 4GB or more, Windows ® 32-bit operating system may only recognize less than 3GB. We recommend a maximum of 3GB system memory if you are using a Windows ® 32-bit operating system. Expansion slots 1 x PCI Express⢠2.0 x16 slot 2 x PCI Express⢠2.0 x1 slots (2.5GT/s, gray slots) 1 x PCI slot VGA Multi-VGA output support: HDMI and RGB ports Supports HDMI with max. resolution of 1920x 1200 (@ 60Hz) Supports RGB with max. resolution of 2048x 1536 (@ 75 Hz) Maximum shared memory of 1748 MB Storage Intel ® H55 Express Chipset: - 6 x SA T A 3.0 Gb/s connectors Marvell ® 9123 controller: - 2 x SA T A 6.0 Gb/s ports LAN Realtek ® RTL81 1 1E Gigabit LAN controller featuring AI NET2 USB 2 x USB 3.0 / 2.0 ports (blue, at the back panel) 10 x USB 2.0 / 1.1 ports (6 ports at mid-board, 4 ports at the back panel)
xi P7H55-M/USB3 speciîcations summary Audio Realtek ® ALC887 8-channel* High Deînition Audio CODEC - Optical S/PDIF out ports at mid-board and back I/O - Support Jack-dectection, Multi-streaming, Front Panel Jack-Retasking (Only in Mic in port) * Use a chassis with HD audio module in the front panel to support an 8-channel audio output. ASUS unique features ASUS Exclusive Overclocking Features: - GPU Boost - ASUS TurboV - ASUS Auto T uning (Adopt Fast Mode) - ASUS Turbo Key ASUS Power Solution: - ASUS EPU ASUS Quiet Thermal Solution: - ASUS Fanless Design: Stylish Heatsink Solution ASUS EZ DIY : - ASUS O.C. Proîle - ASUS CrashFree BIOS 3 - ASUS EZ Flash 2 - ASUS My Logo 2 ASUS Express Gate ASUS exclusive overclocking features Precision T weaker 2: - vCore: Adjustable CPU voltage at 0.00625V increment - vIMC: Adjustable IMC voltage at 0.00625V increment - vDRAM Bus: Adjustable DRAM voltage at 0.015V increment - vPCH: Adjustable PCH voltage at 0.00625V increment - vCPU_PLL: Adjustable CPU_PLL voltage at 0.05V increment - iGPU: Adjustable iGPU voltage at 0.00625V increment SFS (Stepless Frequency Selection): - Internal Base Clock tuning from 80 MHz up to 500 MHz at 1MHz increment - PCI Express frequency tuning from 100MHz up to 200MHz at 1MHz increment (only for L ynnîeld CPUs) Overclocking Protection: - ASUS C.P .R.(CPU Parameter Recall) Back panel I/O ports 1 x PS/2 Keyboard / Mouse Combo port 1 x Optical S/PDIF Out port 1 x HDMI port 1 x D-Sub port 1 x LAN (RJ-45) port 2 x USB 3.0 / 2.0 ports (blue) 4 x USB 2.0 / 1.1 ports 3 x Audio jacks (8-channel) (continued on the next page)
xii Internal I/O connectors 3 x USB 2.0/1.1 connectors support additional 6 USB 2.0/1.1 ports 2 x SA T A 6Gb/s connectors 6 x SA T A 3Gb/s connectors 1 x CPU fan connector (4-pin) 1 x Chassis fan connector (3-pin) 1 x LPT connector 1 x S/PDIF Out header 1 x Front panel audio connector 1 x COM connector 1 x Clear CMOS jumper 1 x 24-pin EA TX power connector 1 x 8-pin A TX 12V power connector 1 x System panel connector BIOS 64 Mb Flash ROM, SPI, AMI BIOS, PnP , DMI 2.0, WfM 2.0, SM BIOS 2.6, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS 3 Manageability WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE Accessories 1 x Serial A T A 6.0Gb/s cable 2 x Serial A T A 3.0Gb/s cables 1 x I/O shield 1 x User Manual Support DVD Drivers ASUS Utilities ASUS Update Anti-virus software (OEM version) Form factor uA TX form factor: 9.6 in x 9.0 in (24.4 cm x 22.9 cm) P7H55-M/USB3 speciîcations summary * Speciîcations are subject to change without notice.
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1-1 Chapter 1: Product introduction Chapter 1 Product introduction Motherboard ASUS P7H55-M/USB3 motherboard Cables 2 x Serial A T A 3.0Gb/s cables 1 x Serial A T A 6.0Gb/s cable Accessories 1 x I/O shield Application DVD ASUS motherboard support DVD Documentation User Manual If any of the above items is damaged or missing, contact your retailer . 1.3 Special features 1.3.1 Product highlights Intel ® LGA1 156 L ynnîeld / Clarkdale Processor Ready This motherboard supports the latest Intel ® L ynnîeld and Clarkdale processors in LGA1 156 package, which has memory and PCI Express controller integrated to support 2-channel (4 DIMMs) DDR3 memory and 16 PCI Express 2.0 lanes, providing great graphics performance. Intel ® L ynnîeld processor is one of the most powerful and energy efîcient CPU in the world. Moreover , Intel ® and Clarkdale processor integrated Graphics Procession Unit (GPU) which goes with Intel ® H55 chipset with VGA out can bring you to the whole new experience of the next generation VGA performance. It also provides separated 3D, 2D, and Video Engines to execute dif ferent graphic control in hardware. 1.1 Welcome! Thank you for buying an ASUS ® P7H55-M/USB3 motherboard! The motherboard delivers a host of new features and latest technologies, making it another standout in the long line of ASUS quality motherboards! Before you start installing the motherboard, and hardware devices on it, check the items in your package with the list below . 1.2 Package contents Check your motherboard package for the following items.
ASUS P7H55-M/USB3 1-2 Intel ® H55 The Intel ® H55 Express Chipset is the latest one-chipset design to support the latest 1 156 socket Intel ® Core⢠i7 / Core⢠i5/ Core⢠i3/ Pentium ® processors. Intel ® H55 provides improved performance by utilizing serial point-to-point links, allowing increased bandwidth and stability . Use Intel ® Core⢠i5 6 Series, Core⢠i3 5 Series, and Pentium ® CPU with H55 Express Chipset to enjoy the latest Intel ® integrated graphic performance. Dual-Channel DDR3 2200 (O.C.) MHz support The motherboard supports DDR3 memory that features data transfer rates up to 2200 (O.C.) MHz to meet the higher bandwidth requirements of the latest 3D graphics, multimedia, and Internet applications. The dual-channel DDR3 architecture enlarges the bandwidth of your system memory to boost system performance. PCI Express 2.0 support This motherboard supports PCI Express 2.0 devices for double speed and bandwidth which enhances system performance. HDMI support HDMI (High-Deînition Multimedia Interface) is a set of digital video standards that deliver multi-channel digital audio and uncompressed digital video for full HD 1080p visuals through a single cable. Supporting HDCP copy protection such as HD DVD and Blu-ray discs, HDMI provides you with the highest-quality home theater experience. S/PDIF digital sound ready This motherboard provides convenient connectivity to external home theater audio systems via the S/PDIF-out (SONY -PHILIPS Digital Interface) jack. It allows digital audio transfer and keeps the best signal quality . 8-channel audio CODEC Enjoy high-end sound quality on your PC! The onboard 8-channel High Deînition Audio CODEC enables high-quality 192KHz/24-bit audio output, jack-sensing feature, and multi-streaming technology . Gigabit LAN solution The onboard LAN controller is a highly integrated Gb LAN controller . It is enhanced with an ACPI management function to provide efîcient power management for advanced operating systems.
1-3 Chapter 1: Product introduction T rue USB 3.0 support Experience ultra-fast data transfers at 4.8 Gb/s with USB 3.0, which is the latest connectivity standard. Built to connect easily with the next- generation components and peripherals, USB 3.0 transfers data 10x faster and is also backward compatible with USB 2.0 components. Serial A T A 6.0 Gb/s support Adopting MARVELL âs professional SA T A 6 Gb/s solution, which supports the next-generation Serial A T A (SA T A) storage interface, this motherboard delivers up to 6.0 Gb/s data transfer rates. This motherboard also provides enhanced scalability , faster data retrieval, and double the bandwidth of current bus systems. 1.3.2 Innovative ASUS features T urbo Key ASUS T urbo Key allows you to turn the PC power button into a physical overclocking button. After the easy setup, T urbo Key can boost performances without interrupting ongoing work or gamesâwith just one touch! ASUS T urboV Feel the adrenaline rush of real-time OC-now a reality with the ASUS T urboV . This easy OC tool allows you to overclock without exiting or rebooting the OS; and its user-friendly interface makes overclock with just a few clicks away . Moreover, the ASUS OC proîles in T urboV provides the best O.C. settings in different scenarios. GPU Boost GPU Boost overclocks the integrated GPU in real time for the best graphics performance. User-friendly UI facilitates îexible frequency and voltage adjustments. Its ability to deliver multiple overclocking proîles also provides rapid and stable system-level upgrades. ASUS EPU ASUS EPU is a unique power saving technology that detects the current system loadings and adjusts the power consumption in real time. ASUS Auto T uning ASUS Auto T uning is an intelligent tool that automates overclocking to achieve a total system level up. Even O.C. beginners can achieve an extreme yet stable overclocking results with Auto T uning.
ASUS P7H55-M/USB3 1-4 ASUS Express Gate Express Gate is an ASUS exclusive OS, which lets you instantly access the Internet and key applications before entering the Windows ® OS. ⢠ASUS Express Gate supports installation on SA T A HDDs, USB HDDs and îash drives with at least 1.2GB free disk space. When installing it on USB HDDs or îash drives, connect the drives to the motherboard USB port before turning on the computer . ⢠The actual boot time depends on the system conîguration. ⢠ASUS Express Gate supports île uploading from SA T A HDDs, ODDs and USB drives. It supports île downloading to USB drives only . Stylish Heatsink The crystal-shaped heatsink features 0-dB thermal solution that offers users a noiseless PC environment. Not only the beautiful shape upgrades the visual enjoyment for motherboard users, but also the heatsink design lowers the temperature of the chipset and power phase area through high efîcient heat-exchange. Combined with usability and aesthetics, the ASUS crystal-shaped heatsink will give users an extremely silent and cooling experience with the elegant appearance! ASUS O.C. Proîle The motherboard features the ASUS O.C. Proîle that allows you to conveniently store or load multiple BIOS settings. The BIOS settings can be stored in the CMOS or a separate île, giving you the freedom to share and distribute your favorite settings. ASUS MyLogo2⢠This feature allows you to convert your favorite photo into a 256-color boot logo for a more colorful and vivid image on your screen. ASUS CrashFree BIOS 3 ASUS CrashFree BIOS 3 is an auto-recovery tool that allows you to restore a corrupted BIOS île using the bundled support DVD or USB îash disk that contains the latest BIOS île. ASUS EZ Flash 2 ASUS EZ Flash 2 is a utility that allows you to update the BIOS without using an OS-based utility .
1-5 Chapter 1: Product introduction ASUS AI NET2 ASUS AI NET2 remotely detects the cable connection immediately after turning on the system, and any faulty cable connections are reported back up to 100 meters at 1 meter accuracy . C.P .R. (CPU Parameter Recall) The BIOS C.P .R. feature automatically restores the CPU default settings when the system hangs due to overclocking failure. C.P .R. eliminates the need to open the system chassis and clear the RTC data. Simply shut down and reboot the system, and the BIOS automatically restores the CPU parameters to their default settings. Green ASUS This motherboard and its packaging comply with the European Unionâs Restriction on the use of Hazardous Substances (RoHS). This is in line with the ASUS vision of creating environment-friendly and recyclable products/packaging to safeguard consumersâ health while minimizing the impact on the environment.
ASUS P7H55-M/USB3 1-6 1.4 Before you proceed T ake note of the following precautions before you install motherboard components or change any motherboard settings. ⢠Unplug the power cord from the wall socket before touching any component. ⢠Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, to avoid damaging them due to static electricity . ⢠Hold components by the edges to avoid touching the ICs on them. ⢠Whenever you uninstall any component, place it on a grounded antistatic pad or in the bag that came with the component. ⢠Before you install or remove any component, ensure that the A TX power supply is switched off or the power cord is detached from the power supply . Failure to do so may cause severe damage to the motherboard, peripherals, or components. Onboard LED The motherboard comes with a standby power LED that lights up to indicate that the system is ON, in sleep mode, or in soft-off mode. This is a reminder that you must shut down the system and unplug the power cable before removing or plugging in any motherboard component. The illustration below shows the location of the onboard LED. SB_PWR ON Standby Power Powered Off OFF P 7 H 5 5 - M / US B 3 P7H55-M/USB3 Onboard LED
1-7 Chapter 1: Product introduction 1.5 Motherboard overview Before you install the motherboard, study the conîguration of your chassis to ensure that the motherboard îts into it. Ensure that you unplug the power cord before installing or removing the motherboard. Failure to do so can cause you physical injury and damage motherboard components. 1.5.1 Placement direction When installing the motherboard, ensure that you place it into the chassis in the correct orientation. The edge with external ports goes to the rear part of the chassis as indicated in the image below . 1.5.2 Screw holes Place six screws into the holes indicated by circles to secure the motherboard to the chassis. Do not overtighten the screws! Doing so can damage the motherboard. Place this side towards the rear of the chassis P7H55-M/USB3
ASUS P7H55-M/USB3 1-8 1.5.3 Motherboard layout P7H55- M /USB3 PCIEX16 PCI1 PCIEX1_1 PCIEX1_2 LPT USB1112 USB910 USB78 AAFP ATX12V EATXPWR CPU_FAN CHA_FAN Lithium Cell CMOS Power Super I/O AUDIO ICS 954 A4 ALC 887 RTL 8111E KB_USB56 64Mb BIOS Marvell 9123 SB_PWR CLRTC SPDIF_OUT 24.4cm(9.6in) LGA1156 Intel ® H55 DDR3 DIMM_A2 (64bit, 240-pin module) DDR3 DIMM_A1 (64bit, 240-pin module) DDR3 DIMM_B2 (64bit, 240-pin module) DDR3 DIMM_B1 (64bit, 240-pin module) LAN1_USB12 NEC 176 USB_3.0_12 SATA1 SATA3 SATA5 SATA2 SATA4 SATA6 SATA_6G_2 SATA_6G_1 COM1 PANEL SPDIF_O2 HDMI COM1 22.9cm(9.0in) 3 2 1 4 1 2 6 5 7 9 8 10 12 11 13 1.5.4 Layout contents Connectors/Jumpers/Slots/LED Pa ge Connectors/Jumpers/Slots/LED Page 1. CPU and chassis fan connectors (4-pin CPU_F AN, 3-pin CHA_FAN1) 1-28 8. USB connectors (10-1 pin USB78, USB910, USB1 1 12) 1-3- 2. A TX power connectors (24-pin EA TXPWR, 8-pin A TX12V) 1-27 9. System panel connector (20-8 pin P ANEL) 1-31 3. LGA1 156 CPU socket 1-9 10. Serial port connector (10-1 pin COM1) 1-28 4. DDR3 DIMM slots 1-14 1 1. LPT connector (26-1 pin LPT) 1-27 5. Onboard LED (SB_PWR) 1-6 12. Digital audio connector (4-1 pin SPDIF_OUT) 1-29 6. Clear RTC RAM (3-pin CLRTC) 1-24 13. Front panel audio connector (10-1 pin AAFP) 1-26 7. Serial AT A connectors (7-pin SA T A1-6) 1-29
1-9 Chapter 1: Product introduction 1.6 Central Processing Unit (CPU) The motherboard comes with a surface mount LGA1 156 socket designed for the Intel ® Core⢠i7 / Core⢠i5 / Core⢠i3 / Pentium ® processors. Unplug all power cables before installing the CPU. ⢠Upon purchase of the motherboard, ensure that the PnP cap is on the socket and the socket contacts are not bent. Contact your retailer immediately if the PnP cap is missing, or if you see any damage to the PnP cap/socket contacts/motherboard components. ASUS will shoulder the cost of repair only if the damage is shipment/transit-related. ⢠Keep the cap after installing the motherboard. ASUS will process Return Merchandise Authorization (RMA) requests only if the motherboard comes with the cap on the LGA1 156 socket. ⢠The product warranty does not cover damage to the socket contacts resulting from incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP cap. 1.6.1 Installing the CPU T o install a CPU: 1. Locate the CPU socket on the motherboard. T o prevent damage to the socket pins, do not remove the PnP cap unless you are installing a CPU. 2. Press the load lever with your thumb (A), and then move it to the right (B) until it is released from the retention tab. A B Load lever Retention tab P 7 H 5 5 - M / US B 3 P7H55-M/USB3 CPU socket LGA1 156
ASUS P7H55-M/USB3 1-10 3. Lift the load lever in the direction of the arrow until the load plate is completely lifted. Load plate 4. Remove the PnP cap from the CPU socket by lifting the tab only . The CPU îts in only one correct orientation. DO NOT force the CPU into the socket to prevent bending the connectors on the socket and damaging the CPU! Gold triangle mark Alignment keys CPU notches 5. Position the CPU over the socket, ensuring that the gold triangle is on the bottom-left corner of the socket, and then ît the socket alignment keys into the CPU notches. PnP cap Cap tab
1-1 1 Chapter 1: Product introduction 7. Close the load plate (A), and then push down the load lever (B), ensuring that the front edge of the load plate slides under the retention knob (C). B A C 8. Insert the load lever under the retention tab. 6. Apply some Thermal Interface Material to the exposed area of the CPU that the heatsink will be in contact with, ensuring that it is spread in an even thin layer . Some heatsinks come with pre- applied thermal paste. If so, skip this step. The Thermal Interface Material is toxic and inedible. DO NOT eat it. If it gets into your eyes or touches your skin, wash it off immediately , and seek professional medical help.
ASUS P7H55-M/USB3 1-12 1.6.2 Installing the CPU heatsink and fan The Intel ® LGA1 156 processor requires a specially designed heatsink and fan assembly to ensure optimum thermal condition and performance. ⢠When you buy a boxed Intel ® processor , the package includes the CPU fan and heatsink assembly . If you buy a CPU separately , ensure that you use only Intel ® -certiîed multi-directional heatsink and fan. ⢠Y our Intel ® LGA1 156 heatsink and fan assembly comes in a push-pin design and requires no tool to install. ⢠Use an LGA1 156-compatible CPU heatsink and fan assembly only . The LGA1 156 socket is incompatible with the LGA775 and LGA1366 sockets in size and dimension. Ensure that you have installed the motherboard to the chassis before you install the CPU fan and heatsink assembly . The type of CPU heatsink and fan assembly may differ , but the installation steps and functions should remain the same. The illustration above is for reference only . T o install the CPU heatsink and fan: 1. Place the heatsink on top of the installed CPU, ensuring that the four fasteners match the holes on the motherboard. A A B B 1 1 A B B A 2. Push down two fasteners at a time in a diagonal sequence to secure the heatsink and fan assembly in place. Orient the heatsink and fan assembly such that the CPU fan cable is closest to the CPU fan connector . If you purchased a separate CPU heatsink and fan assembly , ensure that you have properly applied Thermal Interface Material to the CPU heatsink or CPU before you install the heatsink and fan assembly .
1-13 Chapter 1: Product introduction 3. Connect the CPU fan cable to the connector on the motherboard labeled CPU_F AN. Do not forget to connect the CPU fan connector! Hardware monitoring errors can occur if you fail to plug this connector . 1.6.3 Uninstalling the CPU heatsink and fan T o uninstall the CPU heatsink and fan: 1. Disconnect the CPU fan cable from the connector on the motherboard. 2. Rotate each fastener counterclockwise. 3. Pull up two fasteners at a time in a diagonal sequence to disengage the heatsink and fan assembly from the motherboard. A A B B A A B B CPU_F AN CPU FAN PWM CPU FAN IN CPU FAN PWR GND P 7 H 5 5 - M / US B 3 P7H55-M/USB3 CPU fan connector
ASUS P7H55-M/USB3 1-14 1.7 System memory 1.7.1 Overview The motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets. A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for better performance with less power consumption. The îgure illustrates the location of the DDR3 DIMM sockets: Channel Sockets Channel A DIMM_A1 and DIMM_A2 Channel B DIMM_B1 and DIMM_B2 4. Carefully remove the heatsink and fan assembly from the motherboard. 5. Rotate each fastener clockwise to ensure correct orientation when reinstalling. P 7 H 5 5 - M / US B 3 P7H55-M/USB3 240-pin DDR3 DIMM sockets DIMM_A2 DIMM_A1 DIMM_B2 DIMM_B1
1-15 Chapter 1: Product introduction 1.7.2 Memory conîgurations Y ou may install 512MB, 1GB, 2GB, and 4GB unbuffered non-ECC DDR3 DIMMs into the DIMM sockets. ⢠The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value. T o operate at the vendor-marked or at a higher frequency , refer to section Ai T weaker menu for manual memory frequency adjustment. ⢠For system stability , use a more efîcient memory cooling system to support a full memory load (4 DIMMs) or overclocking condition. ⢠Y ou may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel conîguration. Any excess memory from the higher-sized channel is then mapped for single-channel operation. ⢠Due to Intel spec deînition, X.M.P . DIMMs are supported for one DIMM per channel only . ⢠According to Intel CPU spec, DIMM voltage below 1.65V is recommended to protect the CPU. ⢠According to Intel CPU spec, CPUs with a core frequency of 2.66GHz support the maximum DIMM frequency of up to DDR3 1333. T o use DIMMs of a higher frequency with a 2.66GHz CPU, enable the DRAM O.C. Proîle feature in BIOS. Refer to section 2.4.1 Ai Overclock T uner for details. ⢠Always install DIMMs with the same CAS latency . For optimum compatibility , we recommend that you obtain memory modules from the same vendor . ⢠Due to the memory address limitation on 32-bit Windows ® OS, when you install 4GB or more memory on the motherboard, the actual usable memory for the OS can be about 3GB or less. For effective use of memory , we recommend that you do any of the following: - Use a maximum of 3GB system memory if you are using a 32-bit Windows ® OS. - Install a 64-bit Windows ® OS when you want to install 4GB or more on the motherboard. ⢠This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less. ⢠ASUS exclusively provides hyper DIMM support function. ⢠Hyper DIMM support is subject to the physical characteristics of individual CPUs. ⢠According to Intel spec deînition, DDR3 1600 is supported for one DIMM per channel only . ASUS exclusively provides two DDR3 1600 DIMM support for each memory channel. ⢠Visit the ASUS website at www .asus.com for the latest QVL.
ASUS P7H55-M/USB3 1-16 P7H55-M/USB3 Motherboard Qualiîed V endors Lists (QVL) DDR3-1600 MHz capability for L ynnîeld CPU (2.66 GHz) V endor Part No Size SS/ DS Chip Brand Chip No. Timing V oltage DIMM socket support (Optional) A* B* C* A-Data AD31600E001GM(O)U3K 3072MB (Kit of 3) SS - - 8-8-8-24 1.65V-1.85V ⢠⢠⢠A-Data AD31600E002GU(XMP) 2048MB DS - - 7-7-7-20 1.75-1.85V ⢠⢠A-Data AD31600X002GMU(XMP) 4096MB (Kit of 2) DS - - 7-7-7-20 1.75-1.85V ⢠⢠⢠COR SAIR TR3X3G1600C8D(XMP) 3072MB (Kit of 3) SS - - 8-8-8-24 1.65V ⢠⢠⢠COR SAIR CMX4GX3M2A1600C9(XMP) 4096MB (Kit of 2) DS - - 9-9-9-24 1.65V ⢠⢠⢠COR SAIR CMX4GX3M2A1600C9(XMP) 4096MB (Kit of 2) DS - - 9-9-9-24 1.65V ⢠⢠COR SAIR TR3X6G1600C8 G(XMP) 6144MB (Kit of 3 ) DS - - - - ⢠⢠COR SAIR TR3X6G1600C8D G(XMP) 6144MB (Kit of 3 ) DS - - 8-8-8-24 1.65V ⢠⢠⢠COR SAIR TR3X6G1600C9 G(XMP) 6144MB (Kit of 3 ) DS - - 9-9-9-24 1.65V ⢠⢠⢠COR SAIR TR3X6G1600C8D G(XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 1.65V ⢠⢠⢠COR SAIR CMX8GX3M4A1600C9(XMP) 8192MB (Kit of 4) DS - - 9-9-9-24 1.65V ⢠⢠⢠Crucial BL12864BA1608.8SFB(XMP) 3072MB (Kit of 3) SS - - 8-8-8-24 1.8V ⢠⢠⢠Crucial BL12864BE2009.8SFB3(EPP) 3072MB (Kit of 3) SS - - 9-9-9-28 2.0V ⢠⢠⢠Crucial BL25664BN1608.16FF(XMP) 6144MB (Kit of 3 ) DS - - - - ⢠⢠Crucial BL25664TB1608.K16SF(XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 - ⢠⢠⢠Crucial BL25664TG1608.K16SF(XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 - ⢠⢠⢠Crucial BL25664TR1608.K16SF(XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 - ⢠⢠⢠G.SKILL F3-12800CL9D-2GBNQ(XMP) 2048MB (Kit of 2) SS - - 9-9-9-24 1.5V~1.6V ⢠⢠⢠G.SKILL F3-12800CL7D-4GBECO(XMP) 4096MB (Kit of 2) DS - - 7-8-7-24 1.35V(low voltage) ⢠⢠⢠G.SKILL F3-12800CL8D-4GBRM(XMP) 4096MB (Kit of 2) DS - - 8-8-8-24 1.60V ⢠⢠⢠G.SKILL F3-12800CL9D-4GBECO(XMP) 4096MB (Kit of 2) DS - - 9-9-9-24 1.35V(low voltage) ⢠⢠⢠G.SkiLL F3-12800CL8T-6GBPI(XMP) 6144MB (Kit of 3) DS - - 8-8-8-21 1.6-1.65V ⢠⢠⢠G.SKILL F3-12800CL9T-6GBNQ(XMP) 6144MB (Kit of 3) DS - - 9-9-9-24 1.5V~1.6V ⢠⢠â¢
1-17 Chapter 1: Product introduction DDR3-1600 MHz capability for L ynnîeld CPU (2.88 GHz and 2.93 GHz) V endor Part No. Size SS/DS Chip Brand Chip No. Timing V oltage DIMM socket support (Optional) A* B* C* A-Data AD31600E001 GM(O)U3K 3072MB (Kit of 3) SS - - 8-8-8-24 1.65V - 1.85V ⢠⢠⢠A-Data AD31600X002 GMU(XMP) 4096MB (Kit of 2) DS - - 7-7-7-20 1.75- 1.85V ⢠⢠⢠CORSAIR TR3X3G1600C8D (XMP) 3072MB (Kit of 3) SS - - 8-8-8-24 1.65V ⢠⢠⢠CORSAIR CMX4GX3M2A1600 C9(XMP) 4096MB (Kit of 2) DS - - 9-9-9-24 1.65V ⢠⢠⢠CORSAIR CMX4GX3M2 A1600C9(XMP) 4096MB (Kit of 2) DS - - 9-9-9-24 1.65V ⢠⢠⢠CORSAIR TR3X6G1600C8 G (XMP) 6144MB (Kit of 3) DS - - - - ⢠⢠⢠CORSAIR TR3X6G1600C8D G (XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 1.65V ⢠⢠⢠CORSAIR TR3X6G1600C9 G (XMP) 6144MB (Kit of 3) DS - - 9-9-9-24 1.65V ⢠⢠⢠CORSAIR TR3X6G1600C8D G (XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 1.65V ⢠⢠⢠CORSAIR CMX8GX3M4 A1600C9(XMP) 8192MB (Kit of 4) DS - - 9-9-9-24 1.65V ⢠⢠⢠Crucial BL12864BA1608.8SFB (XMP) 3072MB (Kit of 3) SS - - 8-8-8-24 1.8V ⢠⢠⢠Crucial BL12864BE2009.8SFB3 (EPP) 3072MB (Kit of 3) SS - - 9-9-9-28 2.0V ⢠⢠⢠Crucial BL25664BN1608.16FF (XMP) 6144MB (Kit of 3 ) DS - - - - ⢠⢠Crucial BL25664TB1608.K16SF (XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 - ⢠⢠⢠Crucial BL25664TG1608.K16SF (XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 - ⢠⢠⢠Crucial BL25664TR1608.K16SF (XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 - ⢠⢠⢠G.SKILL F3-12800CL9D-2GBNQ (XMP) 2048MB (Kit of 2) SS - - 9-9-9-24 1.5V~ 1.6V ⢠⢠G.SKILL F3-12800CL7D-4GBECO (XMP) 4096MB (Kit of 2) DS - - 7-8-7-24 1.35V (low voltage) ⢠⢠⢠G.SKILL F3-12800CL8D-4GBRM (XMP) 4096MB (Kit of 2) DS - - 8-8-8-24 1.60V ⢠⢠⢠G.SKILL F3-12800CL9D-4GBECO (XMP) 4096MB (Kit of 2) DS - - 9-9-9-24 1.35V (low voltage) ⢠⢠⢠G.SkiLL F3-12800CL8T -6GBPI (XMP) 6144MB (Kit of 3) DS - - 8-8-8-21 1.6- 1.65V ⢠⢠⢠G.SKILL F3-12800CL9T-6GBNQ (XMP) 6144MB (Kit of 3) DS - - 9-9-9-24 1.5V~ 1.6V ⢠⢠⢠GEIL GV34GB1600C8DC (XMP) 2048MB DS - - 8-8-8-28 1.6V ⢠⢠â¢
ASUS P7H55-M/USB3 1-18 DDR3-1333 MHz capability for L ynnîeld CPU (2.66 GHz, 2.88 GHz, and 2.93 GHz) V endor Part No. Size SS/ DS Chip Brand Chip No. Timing V oltage DIMM socket support (Optional) A* B* C* A-Data AD31333001GOU 1024MB SS A-Data AD30908C8D-151C E0906 - - ⢠⢠⢠A-Data AD31333G001GOU 3072MB (Kit of 3) SS - - 8-8-8-24 1.65- 1.85V ⢠⢠⢠A-Data AD31333002GOU 2048MB DS A-Data AD30908C8D-151C E0903 - - ⢠⢠⢠A-Data AD31333G002GMU 2048MB DS - - 8-8-8-24 1.65- 1.85V ⢠⢠⢠Apacer 78.A1GC6.9L1 2048MB DS AP ACER AM5D5808DEWSBG - - ⢠⢠⢠COR SAIR CM3X1024-1333C9DHX 1024MB SS - - 9-9-9-24 1.60V ⢠⢠COR SAIR CM3X1024-1333C9 1024MB SS - - 9-9-9-24 1.60V ⢠⢠⢠COR SAIR TR3X3G1333C9 G 3072MB (Kit of 3) SS - - 9-9-9-24 1.50V ⢠⢠⢠COR SAIR TR3X3G1333C9 G 3072MB (Kit of 3) SS - - 9-9-9-24 1.50V ⢠⢠⢠COR SAIR TR3X3G1333C9 3072MB (Kit of 3) SS - - 9 1.5V ⢠⢠⢠COR SAIR CM3X1024-1333C9DHX 1024MB DS Corsair - - - ⢠⢠⢠COR SAIR CM3X2048-1333C9DHX 2048MB DS - - - - ⢠⢠COR SAIR TW3X4G1333C9 G 4096MB (Kit of 2) DS - - 9-9-9-24 1.50V ⢠⢠⢠COR SAIR CMX8GX3M4A1333C9 8192MB (Kit of 4) DS - - 9--9- 9-24 1.50V ⢠⢠⢠Crucial CT12864BA1339.8FF 1024MB SS Micron 9FF22D9KPT 9 - ⢠⢠⢠Crucial BL12864T A1336.8SFB1 2048MB (Kit of 2) SS - - 6-6-6-20 1.8V ⢠⢠⢠Crucial CT25664BA1339.16FF 2048MB DS Micron 9KF27D9KPT 9 - ⢠⢠⢠Crucial BL 25664ABA 1336.16S FB1 4096MB (Kit of 2) DS - - 6-6-6-20 1.8V ⢠⢠Crucial BL25664BA1336.16SFB1 4096MB (Kit of 2) DS - - 6-6-6-20 1.8V ⢠⢠Crucial BL25664BN1337.16FF (XMP) 6144MB (Kit of 3 ) DS - - 7-7-7-24 1.65V ⢠⢠⢠ELPIDA EBJ10UE8EDF0-DJ-F 1024MB SS ELPIDA J1 108EDSE-DJ-F - 1.35V (low voltage) ⢠⢠⢠ELPIDA EBJ21UE8EDF0-DJ-F 2048MB DS ELPIDA J1108EDSE-DJ-F - 1.35V (low voltage) ⢠⢠G.SKILL F3-10600CL7D-2GBPI (XMP) 1024MB SS G.SKILL - - - ⢠⢠⢠G.SKILL F3-10600CL8D-2GBHK 1024MB SS G.SKILL - - - ⢠⢠⢠G.SKILL F3-10600CL9D-2GBPK 1024MB SS G.SKILL - - - ⢠⢠⢠G.SKILL F3-10666CL7T-3GBPK 3072MB (Kit of 3) SS - - 7-7-7-18 1.5~ 1.6V ⢠⢠â¢
1-19 Chapter 1: Product introduction DDR3-1800 MHz capability for L ynnîeld CPU (2.66 GHz) V endor Part No Size SS/ DS Chip Brand Chip No. Timing V oltage DIMM socket support (Optional) A* B* C* OCZ OCZ3G18002GK 2048MB (Kit of 2) SS - - â9-9- 9-27 1.9V ⢠⢠OCZ QCZ3P18004GK 4096MB (Kit of 2) DS - - 8-8-8-27 1.9V ⢠V endor Part No Size SS/ DS Chip Brand Chip No. Timing Voltage DIMM socket support (Optional) A* B* C* CORSAIR CM G4GX3M2A2000C8 (XMP) 4096MB (Kit of 2) DS - - 8-8-8-24 1.65V ⢠⢠⢠G.SKILL F3-16000CL9D- 4GBTD(XMP) 4096MB (Kit of 2) DS - - 9-9-9-27 1.65V ⢠KINGSTON KHX2000C8D3T1K3/ 3GX(XMP) 3072MB (Kit of 3) SS - - - 1.65V ⢠⢠KINGSTON KHX2000C9D3T1K3/ 3GX(XMP) 3072MB (Kit of 3) SS - - - 1.65V ⢠⢠⢠KINGSTON KHX2000C8D3T1K3/ 6GX(XMP) 6144MB (Kit of 3) DS - - - 1.65V ⢠⢠OCZ OCZ3P20002GK(EPP) 2048MB (Kit of 2) SS - - 9-9-9-30 1.85V ⢠⢠OCZ OCZ3P2000EB2GK 2048MB (Kit of 2) SS - - 9-8-8-30 1.8V ⢠⢠OCZ OCZ3P20004GK(EPP) 4096MB (Kit of 2) DS - - 9-9-9-30 1.9V ⢠⢠DDR3-2000 MHz capability for L ynnîeld CPU (2.66 GHz) V endor Part No Size SS/ DS Chip Brand Chip No Timing V oltage DIMM socket support (Optional) A* B* C* KINGSTON KHX1866C9D3T1K3/ 6GX(XMP) 6144MB(Kit of 3 ) DS - - - 1.65V ⢠⢠OCZ OCZ3P1866C9L V6GK 6144MB(Kit of 3) DS - - 9-9-9-28 1.65V ⢠⢠DDR3-1866 MHz capability for L ynnîeld CPU (2.66 GHz)
ASUS P7H55-M/USB3 1-20 V endor Part No. Size SS/ DS Chip Brand0 Chip No. T iming V oltage DIMM socket support (Optional) A* B* C* A-Data AD31333001GOU 1024MB SS A-Data AD30908C8D-151C E0906 - - ⢠⢠⢠A-Data AD31333G001GOU 3072MB (Kit of 3) SS - - 8-8-8-24 1.65-1.85V ⢠⢠⢠A-Data AD31333002GOU 2048MB DS A-Data AD30908C8D-151C E0903 - - ⢠⢠⢠A-Data AD31333G002GMU 2048MB DS - - 8-8-8-24 1.65-1.85V ⢠⢠Apacer 78.A1GC6.9L1 2048MB DS AP ACER - - ⢠⢠⢠COR SAIR CM3X1024-1333C9DHX 1024MB SS - - 9-9-9-24 1.60V ⢠⢠⢠COR SAIR CM3X1024-1333C9 1024MB SS - - 9-9-9-24 1.60V ⢠⢠⢠COR SAIR TR3X3G1333C9 G 3072MB (Kit of 3) SS - - 9-9-9-24 1.50V ⢠⢠⢠COR SAIR TR3X3G1333C9 G 3072MB (Kit of 3) SS - - 9-9-9-24 1.50V ⢠⢠⢠COR SAIR TR3X3G1333C9 3072MB (Kit of 3) SS - - 9 1.5V ⢠⢠⢠COR SAIR CM3X1024-1333C9DHX 1024MB DS Corsair - - - ⢠⢠⢠COR SAIR CM3X2048-1333C9DHX 2048MB DS - - - - ⢠⢠⢠COR SAIR TW3X4G1333C9 G 4096MB (Kit of 2) DS - - 9-9-9-24 1.50V ⢠⢠⢠Crucial CT12864BA1339.8FF 1024MB SS Micron 9FF22D9KPT 9 - ⢠⢠⢠Crucial BL12864T A1336.8SFB1 2048MB (Kit of 2) SS - - 6-6-6-20 1.8V ⢠⢠⢠Crucial CT25664BA1339.16FF 2048MB DS Micron 9KF27D9KPT 9 - ⢠⢠⢠Crucial BL25664ABA1336.16SFB1 4096MB (Kit of 2) DS - - 6-6-6-20 1.8V ⢠⢠Crucial BL25664BA1336.16SFB1 4096MB (Kit of 2) DS - - 6-6-6-20 1.8V ⢠⢠Crucial BL25664BN1337.16FF (XMP) 6144MB (Kit of 3 ) DS - - 7-7-7-24 1.65V ⢠⢠⢠ELPIDA EBJ10UE8EDF0-DJ-F 1024MB SS ELPIDA J1108EDSE-DJ-F - 1.35V (low voltage) ⢠⢠⢠ELPIDA EBJ21UE8EDF0-DJ-F 2048MB DS ELPIDA J1 108EDSE-DJ-F - 1.35V (low voltage) ⢠⢠G.SKILL F3-10600CL7D- 2GBPI(XMP) 1024MB SS G.SKILL - - - ⢠⢠⢠G.SKILL F3-10600CL8D-2GBHK 1024MB SS G.SKILL - - - ⢠⢠⢠G.SKILL F3-10600CL9D-2GBPK 1024MB SS G.SKILL - - - ⢠⢠⢠G.SKILL F3-10666CL7T-3GBPK 3072MB (Kit of 3) SS - - 7-7-7-18 1.5~1.6V ⢠⢠⢠G.SKILL F3-10666CL9T-3GBNQ 3072MB (Kit of 3) SS - - 9-9-9-24 1.5~1.6V ⢠⢠DDR3-1333 MHz capability for Clarkdale CPU
1-21 Chapter 1: Product introduction SS: Single-sided / DS: Double-sided DIMM support: ⢠A*: Supports one module inserted into any slot as single-channel memory conîguration. ⢠B*: Supports one pair of modules inserted into either the blue slots or the black slots as one pair of dual-channel memory conîguration. ⢠C*: Supports two pairs of modules inserted into both the blue slots and the black slots as two pairs of dual-channel memory conîguration. ⢠The QVL for the Clarkdale CPU is not included in this manual. Y ou can get it from the ASUS website at www .asus.com ⢠Visit the ASUS website at www .asus.com for the latest QVL. V endor Part No. Size SS/ DS Chip Brand Chip No. Timing V oltage DIMM socket support (Optional) A* B* C* Crucial CT12864 BA1067.8FF 1024MB SS Micron 9GF22D9KPT 7 - ⢠⢠⢠Crucial CT25664 BA1067.16FF 2048MB DS Micron 9HF22D9KPT 7 - ⢠⢠⢠ELPIDA EBJ10UE8E DF0-AE-F 1024MB SS ELPIDA J1108EDSE-DJ-F - 1.35V (low voltage) ⢠⢠⢠ELPIDA EBJ51UD8 BAF A-AC-E 512MB SS Elpida J5308BASE-AC-E - - ⢠⢠⢠ELPIDA EBJ51UD8 BAF A-AE-E 512MB SS Elpida J5308BASE-AC-E - - ⢠⢠⢠ELPIDA EBJ11UD8 BAF A-AE-E 1024MB DS Elpida J5308BASE-AC-E - - ⢠⢠⢠ELPIDA EBJ21UE8 EDF0-AE-F 2048MB DS ELPIDA J1108EDSE-DJ-F - 1.35V (low voltage) ⢠⢠⢠KINGSTON KVR1066 D3N7/1G 1024MB SS Kingston D1288JEKAPGA7U 7 1.5V ⢠⢠⢠KINGSTON KVR1066 D3N7/2G 2048MB DS Kingston D1288JEKAPGA7U 7 1.5V ⢠⢠⢠Micron MT8JTF12864 AZ-1G1F1 1024MB SS Micron 9GF22D9KPT 7 - ⢠⢠⢠Micron MT16JTF25664 AZ-1G1F1 2048MB DS Micron 9HF22D9KPT 7 - ⢠⢠⢠SAMSUNG M378B2873 EH1-CF8 1024MB SS Samsung SEC 901 HCF8 K4B1G0846E - - ⢠⢠⢠SAMSUNG M378B5273 BH1-CF8 4096MB DS SAMSUNG 846 K4B2G0846B- HCF8 - - ⢠⢠Elixir M2Y2G64CB8 HC5N-BE 2048MB DS Elixir N2CB1G80CN-BE - - ⢠⢠Elixir M2Y2G64CB HA9N-BE 2048MB DS - - 7-7-7-20 - ⢠⢠⢠Elixir M2Y2G64CB HC9N-BE 2048MB DS Elixir - - - ⢠⢠⢠Kingtiger 2GB DIMM PC3-8500 2048MB DS Hynix H5TQ1G83AFP G7C - - ⢠⢠DDR3-1066 MHz capability for Clarkdale CPU
ASUS P7H55-M/USB3 1-22 1.7.4 Removing a DIMM Follow these steps to remove a DIMM. 2. Remove the DIMM from the socket. 1.7.3 Installing a DIMM 3. Firmly insert the DIMM into the socket until the retaining clip snaps back in place and the DIMM is properly seated. A DIMM is keyed with a notch so that it îts in only one direction. DO NOT force a DIMM into a socket in the wrong direction to avoid damaging the DIMM. T o install a DIMM 1. Unlock a DIMM socket by pressing the retaining clip outward. 2. Align a DIMM on the socket such that the notch on the DIMM matches the DIMM slot key on the socket. Support the DIMM lightly with your îngers when pressing the retaining clip. The DIMM might get damaged when it îips out with extra force. Ensure to unplug the power supply before adding or removing DIMMs or other system components. Failure to do so may cause severe damage to both the motherboard and the components. 1. Press the retaining clip outward to unlock the DIMM. 1 2 Unlocked retaining clip DIMM notch 2 1 Locked Retaining Clip 3 DIMM slot key
1-23 Chapter 1: Product introduction 1.8 Expansion slots In the future, you may need to install expansion cards. The following sub-sections describe the slots and the expansion cards that they support. Unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury and damage motherboard components. 1.8.1 Installing an expansion card T o install an expansion card: 1. Before installing the expansion card, read the documentation that came with it and make the necessary hardware settings for the card. 2. Remove the system unit cover (if your motherboard is already installed in a chassis). 3. Remove the bracket opposite the slot that you intend to use. Keep the screw for later use. 4. Align the card connector with the slot and press îrmly until the card is completely seated on the slot. 5. Secure the card to the chassis with the screw you removed earlier . 6. Replace the system cover . 1.8.2 Conîguring an expansion card After installing the expansion card, conîgure it by adjusting the software settings. 1. T urn on the system and change the necessary BIOS settings, if any . See Chapter 2 for information on BIOS setup. 2. Assign an IRQ to the card. 3. Install the software drivers for the expansion card. When using PCI cards on shared slots, ensure that the drivers support âShare IRQâ or that the cards do not need IRQ assignments. Otherwise, conîicts will arise between the two PCI groups, making the system unstable and the card inoperable. 1.8.3 PCI slot The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI speciîcations. 1.8.4 PCI Express x1 slots This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that comply with the PCI Express speciîcations. 1.8.5 PCI Express x16 slot This motherboard has a PCI Express 2.0 x16 slot that supports PCI Express x16 2.0 graphic cards complying with the PCI Express speciîcations.
ASUS P7H55-M/USB3 1-24 1.9 Jumpers 1. Clear RTC RAM (3-pin CLRTC) This jumper allows you to clear the Real T ime Clock (RTC) RAM in CMOS. Y ou can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords. Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default position. Removing the cap will cause system boot failure! ⢠If the steps above do not help, remove the onboard battery and move the jumper again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery . ⢠Y ou do not need to clear the RTC when the system hangs due to overclocking. For system failure due to overclocking, use the CPU Parameter Recall (C.P .R.) feature. Shut down and reboot the system, then the BIOS automatically resets parameter settings to default values. ⢠Due to the chipset limitation, AC power off is required before you use the C.P .R. function. Y ou must turn off and on the power supply or unplug and plug the power cord before rebooting the system. T o erase the RTC RAM: 1. T urn OFF the computer and unplug the power cord. 2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3 for about 5-10 seconds, then move the cap back to pins 1-2. 3. Plug the power cord and turn ON the computer . 4. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data. P 7 H 5 5 - M / US B 3 P7H55-M/USB3 Clear RTC RAM 1 2 2 3 Normal (Default) Clear RTC CLRTC
1-25 Chapter 1: Product introduction 1.10 Connectors 1.10.1 Rear panel connectors 1. PS/2 Keyboard/Mouse Combo port (purple). This port is for a PS/2 keyboard or PS/2 mouse. 2. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub. Refer to the table below for the LAN port LED indications. LAN port LED indications Activity Link LED Speed LED Status Description Status Description OFF No link OFF 10 Mbps connection ORANGE 100 Mbps connection BLINKING Data activity GREEN 1 Gbps connection LAN port Speed LED Activity Link LED 3. Line In port (light blue). This port connects to the tape, CD, DVD player , or other audio sources. 4. Line Out port (lime). This port connects to a headphone or a speaker . In the 4, 6, and 8-channel conîgurations, the function of this port becomes Front Speaker Out. 5. Microphone port (pink). This port connects to a microphone. Refer to the audio conîguration table below for the function of the audio ports in a 2, 4, 6, or 8-channel conîguration. Audio 2, 4, 6, or 8-channel conîguration Port Headset 2-channel 4-channel 6-channel 8-channel Light Blue (Rear panel) Line In Rear Speaker Out Rear Speaker Out Rear Speaker Out Lime (Rear panel) Line Out Front Speaker Out Front Speaker Out Front Speaker Out Pink (Rear panel) Mic In Mic In Bass/Center Bass/Center Lime (Front panel) â â â Side Speaker Out T o conîgure an 8-channel audio output: Use a chassis with HD audio module in the front panel to support an 8-channel audio output. 3 4 5 2 6 1 1 1 10 7 9 8
ASUS P7H55-M/USB3 1-26 6. USB 2.0 ports. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices. 7. USB 2.0/ USB 3.0 ports. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 / USB 3.0 devices. 8. VGA port. This 15-pin port is for a VGA monitor or other VGA-compatible devices. 9. HDMI port. This port is for a High-Deînition Multimedia Interface (HDMI) connector , and is HDCP compliant allowing playback of HD DVD, Blu-ray , and other protected content. 10. Optical S/PDIF Out port. This port connects an external audio output device via an optical S/PDIF cable. 1 1. USB 2.0 ports. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices. 1.10.2 Internal connectors 1. Front panel audio connector (10-1 pin AAFP) This connector is for a chassis-mounted front panel audio I/O module that supports either HD Audio or legacy AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector . ⢠We recommend that you connect a high-deînition front panel audio module to this connector to avail of the motherboardâs high-deînition audio capability . ⢠If you want to connect a high-deînition front panel audio module to this connector , set the Front Panel T ype item in the BIOS setup to [HD Audio] . If you want to connect an AC'97 front panel audio module to this connector , set the item to [AC97]. By default, this connector is set to [HD Audio] . See section 2.5.3 Onboard Devices Conîguration for details. P 7 H 5 5 - M / US B 3 P7H55-M/USB3 Analog front panel connector AAFP PIN 1 GND PRESENCE# SENSE1_RETUR SENSE2_RETUR PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L HD-audio-compliant pin definition PIN 1 AGND NC NC NC MIC2 MICPWR Line out_R NC Line out_L Legacy ACâ97 compliant definition
1-27 Chapter 1: Product introduction 2. LPT connector (26-1 pin LPT) The LPT (Line Printing T erminal) connector supports devices such as a printer . LPT is standardized as IEEE 1284, which is the parallel port interface on IBM PC-compatible computers. P 7 H 5 5 - M / US B 3 P7H55-M/USB3 Parallel port connector LPT PIN 1 STB# PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 ACK# BUSY PE SLCT AFD ERR# INIT# SLIN# GND GND GND GND GND GND GND GND ⢠For a fully conîgured system, we recommend that you use a power supply unit (PSU) that complies with A TX 12 V Speciîcation 2.0 (or later version) and provides a minimum power of 400 W . ⢠DO NOT forget to connect the 4-pin / 8-pin A TX 12V power plug. Otherwise, the system will not boot up. ⢠We recommend that you use a PSU with higher power output when conîguring a system with more power-consuming devices. The system may become unstable or may not boot up if the power is inadequate. ⢠If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus. com/PowerSupplyCalculator/PSCalculator .aspx?SLanguage=en-us for details. 3. A TX power connectors (24-pin EA TXPWR, 8-pin A TX12V) These connectors are for A TX power supply plugs. The power supply plugs are designed to ît these connectors in only one orientation. Find the proper orientation and push down îrmly until the connectors completely ît. P 7 H 5 5 - M / US B 3 P7H55-M/USB3 A TX power connectors EATXPWR PIN 1 GND 5 Volts 5 Volts 5 Volts -5 Volts GND GND GND PSON# GND -12 Volts 3 Volts 3 Volts 12 Volts 12 Volts 5V Standby Power OK GND 5 Volts GND 5 Volts GND 3 Volts 3 Volts EATX12V PIN 1 12V DC 12V DC 12V DC 12V DC GND GND GND GND
ASUS P7H55-M/USB3 1-28 4. Serial port connector (10-1 pin COM1) This connector is for a serial (COM) port. Connect the serial port module cable to this connector , then install the module to a slot opening at the back of the system chassis. The COM module is purchased separately . P 7 H 5 5 - M / US B 3 P7H55-M/USB3 Serial port (COM1) connector PIN 1 COM1 Do not forget to connect the fan cables to the fan connectors. Insufîcient air îow inside the system may damage the motherboard components. These are not jumpers! Do not place jumper caps on the fan connectors! 5. CPU and chassis fan connectors (4-pin CPU_F AN, 3-pin CHA_F AN1) Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector . ⢠Only the 4-pin CPU fan supports the ASUS Q-FAN feature. ⢠The CPU_F AN connector supports a CPU fan of maximum 2A (24 W) fan power . P 7 H 5 5 - M / US B 3 P7H55-M/USB3 fan connectors GND 12V Rotation CHA_F AN CPU_F AN CPU FAN PWM CPU FAN IN CPU FAN PWR GND
1-29 Chapter 1: Product introduction 6. Digital audio co nne cto r (4-1 pin SPDIF_OUT) This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. Connect the S/PDIF Out module cable to this connector , then install the module to a slot opening at the back of the system chassis. The S/PDIF module is purchased separately . SPDIF_OUT 5V SPDIFOUT GND P 7 H 5 5 - M / US B 3 P7H55-M/USB3 Digital audio connector 7. Serial A T A connectors (7-pin SA T A1-6) These connectors are for the Serial A T A signal cables for Serial A T A 3Gb/s hard disk and optical disk drives. The Serial A T A 3Gb/s is backward compatible with Serial A T A 1.5Gb/s speciîcation. The data transfer rate of the Serial A T A 3Gb/s is faster than the standard parallel A T A with 133 MB/s (Ultra DMA133). Install the Windows ® XP Service Pack 2 or later version before using Serial A T A. SA TA1 GND RSATA_TXP1 RSATA_TXN1 GND RSATA_RXP1 RSATA_RXN1 GND SA TA2 GND RSATA_TXP2 RSATA_TXN2 GND RSATA_RXP2 RSATA_RXN2 GND SA TA3 GND RSATA_RXN3 RSATA_RXP3 GND RSATA_TXN3 RSATA_TXP3 GND SA TA4 GND RSATA_RXN4 RSATA_RXP4 GND RSATA_TXN4 RSATA_TXP4 GND SA TA5 GND RSATA_RXN5 RSATA_RXP5 GND RSATA_TXN5 RSATA_TXP5 GND SA TA6 GND RSATA_RXN6 RSATA_RXP6 GND RSATA_TXN6 RSATA_TXP6 GND GND RSATA_RXN6G_1 RSATA_RXP6G_1 GND RSATA_TXN6G_1 RSATA_TXP6G_1 GND SA TA_6G_2 SAT A_6G_1 GND RSATA_RXN6G_2 RSATA_RXP6G_2 GND RSATA_TXN6G_2 RSATA_TXP6G_2 GND P 7 H 5 5- M / US B 3 P7H55-M/USB3 SA T A connectors
ASUS P7H55-M/USB3 1-30 8. USB connectors (10-1 pin USB78, USB910, USB1 1 12) These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 speciîcation that supports up to 480 Mbps connection speed. Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard! The USB module cable is purchased separately . P 7 H 5 5 - M /U S B 3 P7H55-M/USB3 USB2.0 connectors USB 5V USB_P12- USB_P12 GND NC USB 5V USB_P11- USB_P11 GND USB1 1 12 PIN 1 USB 5V USB_P10- USB_P10 GND NC USB 5V USB_P9- USB_P9 GND USB910 PIN 1 USB 5V USB_P8- USB_P8 GND NC USB 5V USB_P7- USB_P7 GND USB78 PIN 1
1-31 Chapter 1: Product introduction 9. System panel connector (20-8 pin P ANEL) This connector supports several chassis-mounted functions. ⢠System power LED (2-pin PLED) This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector . The system power LED lights up when you turn on the system power , and blinks when the system is in sleep mode. ⢠Hard disk drive activity LED (2-pin IDE_LED) This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable to this connector . The IDE LED lights up or îashes when data is read from or written to the HDD. ⢠System warning speaker (4-pin SPEAKER) This 4-pin connector is for the chassis-mounted system warning speaker . The speaker allows you to hear system beeps and warnings. ⢠A TX power button/soft-off button (2-pin PWRSW) This 2-pin connector is for the system power button. ⢠Reset button (2-pin RESET) This 2-pin connector is for the chassis-mounted reset button for system reboot without turning off the system power . PIN 1 * Requires an ATX power supply PLED SPEAKER PLED PLED- 5V Ground Ground Speaker IDE_LED IDE_LED- PWR Ground Reset Ground P ANEL IDE_LED PWRSW RESET P 7 H 5 5 - M / US B 3 P7H55-M/USB3 System panel connector
ASUS P7H55-M/USB3 1-32 1.1 1 Software support 1.1 1.1 Installing an operating system This motherboard supports Windows ® XP / 64-bit XP / Vista / 64-bit Vista / 7 / 64-bit 7 Operating Systems (OS). Always install the latest OS version and corresponding updates to maximize the features of your hardware. ⢠Motherboard settings and hardware options vary . Refer to your OS documentation for detailed information. ⢠Ensure that you install Windows ® XP Service Pack 3 or later versions / Windows ® Vista Service Pack 1 or later versions before installing the drivers for better compatibility and system stability . 1.1 1.2 Support DVD information The Support DVD that comes with the motherboard package contains the drivers, software applications, and utilities that you can install to avail all motherboard features. If Autorun is NOT enabled in your computer , browse the contents of the Support DVD to locate the île ASSETUP .EXE from the BIN folder . Double-click the ASSETUP .EXE to run the DVD. The following screen is for reference only . The contents of the Support DVD are subject to change at any time without notice. Visit the ASUS website at www .asus.com for updates. T o run the Support DVD Place the Support DVD to the optical drive. If Autorun is enabled in your computer , the DVD automatically displays the Specials screen which contains the unique feature of ASUS motherboard. Click Drivers, Utilities, Make Disk, Manual, and Contact tabs to display their respective menus. Click an item to install Click an icon to display Support DVD/ motherboard information
1-33 Chapter 1: Product introduction
Chapter 2: BIOS information 2-1 Chapter 2 BIOS information Save a copy of the original motherboard BIOS île to a USB îash disk in case you need to restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update utility . ⢠ASUS Update requires an Internet connection either through a network or an Internet Service Provider (ISP). ⢠This utility is available in the support DVD that comes with the motherboard package. Updating the BIOS T o update the BIOS: 1. From the Windows ® desktop, click Start > Programs > ASUS > ASUSUpdate > ASUSUpdate to launch the ASUS Update utility . 2. From the dropdown list, select any of the updating process: Updating from the Internet a. Select Update BIOS from the Internet, then click Next. b. Select the ASUS FTP site nearest you to avoid network trafîc, or click Auto Select then click Next. c. From the FTP site, select the BIOS version that you wish to download then click Next. 2.1.1 ASUS Update utility The ASUS Update is a utility that allows you to manage, save, and update the motherboard BIOS in Windows ® environment. Installing ASUS Update T o install ASUS Update: 1. Place the support DVD in the optical drive. The Drivers menu appears. 2. Click the Utilities tab, then click ASUS Update . 3. Follow the onscreen instructions to complete the installation. Quit all Windows ® applications before you update the BIOS using this utility . 2.1 Managing and updating your BIOS
2-2 ASUS P7H55-M/USB3 2.1.2 ASUS EZ Flash 2 The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based utility . Before you start using this utility , download the latest BIOS île from the ASUS website at www .asus.com. T o update the BIOS using EZ Flash 2: 1. Insert the USB îash disk that contains the latest BIOS île to the USB port, then launch EZ Flash 2 in any of these two ways: ⢠Press <Alt> <F2> during POST . ⢠Enter the BIOS setup program. Go to the T ools menu to select EZ Flash 2 and press <Enter> to enable it. Press <T ab> to switch between drives until the correct BIOS île is found. 2. When the correct BIOS île is found, EZ Flash 2 performs the BIOS update process and automatically reboots the system when done. The ASUS Update utility is capable of updating itself through the Internet. Always update the utility to avail all its features. Updating from a BIOS file a. Select Update BIOS from a île, then click Next. b. Locate the BIOS île from the Open window , then click Open. 3. Follow the onscreen instructions to complete the updating process. ⢠This function supports USB îash disks with F A T 32/16 format and single partition only . ⢠DO NOT shut down or reset the system while updating the BIOS to prevent system boot failure! A: PATH: A:\
Chapter 2: BIOS information 2-3 2.1.3 ASUS CrashFree BIOS The ASUS CrashFree BIOS is an auto recovery tool that allows you to restore the BIOS île when it fails or gets corrupted during the updating process. Y ou can restore a corrupted BIOS île using the motherboard support DVD or a removable device that contains the updated BIOS île. ⢠Before using this utility , rename the BIOS île in the removable device into P7H55MUSB3.ROM . ⢠The BIOS île in the support DVD may not be the latest version. Download the latest BIOS île from the ASUS website at www.asus.com. ⢠The removable devices that ASUS CrashFree BIOS support vary with motherboard models. For motherboards without the îoppy connector , prepare a USB îash disk before using this utility . Recovering the BIOS T o recover the BIOS: 1. T urn on the system. 2. Insert the support DVD to the optical drive or the removable device that contains the BIOS île to the USB port or to the îoppy disk drive, if supported. 3. The utility automatically checks the devices for the BIOS île. When found, the utility reads the BIOS île and starts îashing the corrupted BIOS île. 4. T urn off the system after the utility completes the updating process and turn on again. DO NOT shut down or reset the system while updating the BIOS! Doing so can cause system boot failure! Ensure to load the BIOS default settings to ensure system compatibility and stability . Select the Load Setup Defaults item under the Exit menu. Refer to section 2.9 Exit menu for details. 2.1.4 ASUS BIOS Updater The ASUS BIOS Updater allows you to update BIOS in DOS environment. This utility also allows you to copy the current BIOS île that you can use as a backup when the BIOS fails or gets corrupted during the updating process. The succeeding utility screens are for reference only . The actual utility screen displays may not be same as shown. Before updating BIOS 1. Prepare the motherboard support DVD and a USB îash drive in F A T32/16 format and single partition. 2. Download the latest BIOS île and BIOS Updater from the ASUS website at http://support.asus.com and save them on the USB îash drive.
2-4 ASUS P7H55-M/USB3 ⢠NTFS is not supported under DOS environment. Do not save the BIOS île and BIOS Updater to a hard disk drive or USB îash drive in NTFS format. ⢠Do not save the BIOS île to a îoppy disk due to low disk capacity . 3. T urn off the computer and disconnect all SA T A hard disk drives (optional). Booting the system in DOS environment 1. Insert the USB îash drive with the latest BIOS île and BIOS Updater to the USB port. 2. Boot your computer . When the ASUS Logo appears, press <F8> to show the BIOS Boot Device Select Menu . Insert the support DVD into the optical drive and select the optical drive as the boot device. 3. When the Make Disk menu appears, select the FreeDOS command prompt item by pressing the item number . 4. At the FreeDOS prompt, type d: and press <Enter> to switch the disk from Drive C (optical drive) to Drive D (USB îash drive). 2. The BIOS Updater backup screen appears indicating the BIOS backup process. When BIOS backup is done, press any key to return to the DOS prompt. Backing up the current BIOS T o backup the current BIOS île using the BIOS Updater Ensure that the USB îash drive is not write-protected and has at least 1024KB free space to save the île. 1. At the FreeDOS prompt, type bupdater /o[î¿lename] and press <Enter>. The [îlename] is any user-assigned îlename with no more than eight alphanumeric characters for the îlename and three alphanumeric characters for the extension.
Chapter 2: BIOS information 2-5 Updating the BIOS île T o update the BIOS île using BIOS Updater 1. At the FreeDOS prompt, type bupdater /pc /g and press <Enter>. Update ROM 2. The BIOS Updater screen appears as below . 3. Press <T ab> to switch between screen îelds and use the <Up/Down/Home/End> keys to select the BIOS île and press <Enter>. BIOS Updater checks the selected BIOS île and prompts you to conîrm BIOS update. Update ROM Saving BIOS:
2-6 ASUS P7H55-M/USB3 Using the power button, reset button, or the <Ctrl> <Alt> <Del> keys to force reset from a running operating system can cause damage to your data or system. We recommend to always shut down the system properly from the operating system. ⢠The default BIOS settings for this motherboard apply for most conditions to ensure optimum performance. If the system becomes unstable after changing any BIOS settings, load the default settings to ensure system compatibility and stability . Select the Load Setups Default item under the Exit Menu. See section 2.9 Exit Menu . ⢠The BIOS setup screens shown in this section are for reference purposes only , and may not exactly match what you see on your screen. ⢠Visit the ASUS website at www .asus.com to download the latest BIOS île for this motherboard. 4. Select Y es and press <Enter>. When BIOS update is done, press <ESC> to exit BIOS Updater . Restart your computer . DO NOT shut down or reset the system while updating the BIOS to prevent system boot failure! ⢠For BIOS Updater version 1.04 or later , the utility automatically exits to the DOS prompt after updating BIOS. ⢠Ensure to load the BIOS default settings to ensure system compatibility and stability . Select the Load Setup Defaults item under the Exit menu. Refer to section 2.9 Exit menu for details. ⢠Ensure to connect all SA T A hard disk drives after updating the BIOS île if you have disconnected them. 2.2 BIOS setup program Use the BIOS Setup program to update the BIOS or conîgure its parameters. The BIOS screens include navigation keys and brief online help to guide you in using the BIOS Setup program. Entering BIOS Setup at startup T o enter BIOS Setup at startup: ⢠Press <Delete> during the Power-On Self T est (POST). If you do not press <Delete>, POST continues with its routines. Entering BIOS Setup after POST T o enter BIOS Setup after POST : ⢠Press <Ctrl> <Alt> <Del> simultaneously . ⢠Press the reset button on the system chassis. ⢠Press the power button to turn the system off then back on. Do this option only if you failed to enter BIOS Setup using the îrst two options.
Chapter 2: BIOS information 2-7 2.2.2 Menu bar The menu bar on top of the screen has the following main items: Main For changing the basic system conîguration. Ai T weaker For changing system performance settings Advanced For changing the advanced system settings. Power For changing the advanced power management (APM) conîguration. Boot For changing the system boot conîguration. T ools For conîguring options for special functions. Exit For selecting the exit options and loading default settings. T o select an item on the menu bar , press the right or left arrow key on the keyboard until the desired item is highlighted. 2.2.1 BIOS menu screen 2.2.3 Navigation keys At the bottom right corner of a menu screen are the navigation keys for that particular menu. Use the navigation keys to select items in the menu and change the settings. Some of the navigation keys differ from one screen to another . 2.2.4 Menu items The highlighted item on the menu bar displays the speciîc items for that menu. For example, selecting Main shows the Main menu items. The other items (Ai T weaker, Advanced, Power , Boot, T ools, and Exit) on the menu bar have their respective menu items. v02.61 (C)Copyright 1985-2010, American Megatrends, Inc.
2-8 ASUS P7H55-M/USB3 2.2.5 Submenu items A solid triangle before each item on any menu screen means that the item has a submenu. T o display the submenu, select the item and press <Enter>. 2.2.6 Conîguration îelds These îelds show the values for the menu items. If an item is user- conîgurable, you can change the value of the îeld opposite the item. Y ou cannot select an item that is not user- conîgurable.A conîgurable îeld is enclosed in brackets, and is highlighted when selected. T o change the value of a îeld, select it then press <Enter> to display a list of options. Refer to 2.2.7 Pop-up window . 2.2.7 Pop-up window Select a menu item then press <Enter> to display a pop-up window with the conîguration options for that item. 2.2.8 Scroll bar A scroll bar appears on the right side of a menu screen when there are items that do not ît on the screen. Press the <Up> / <Down> arrow keys or <Page Up> /<Page Down> keys to display the other items on the screen. 2.2.9 General help At the top right corner of the menu screen is a brief description of the selected item. 2.3 Main menu When you enter the BIOS Setup program, the Main menu screen appears, giving you an overview of the basic system information. Select Screen Select Item - Change Field Tab Select Field F1 General Help F10 Save and Exit ESC Exit v02.61 (C)Copyright 1985-2010, American, American Megatrends, Inc. P7H55-M/USB3 BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit Suspend Mode [Auto] ACPI 2.0 Support [Enabled] ACPI APIC support [Enabled] Anti-Surge Support [Enabled] APM Conî¿guration Hardware Monitor If enabled, system will have uvp or ovp protection. Options Disabled Enabled Pop-up window Scroll bar Version 0306 v02.61 (C)Copyright 1985-2009, American Megatrends, Inc. Select Screen Select Item - Change Field Tab Select Field F1 General Help F10 Save and Exit ESC Exit P7H55-M/USB3 BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit System Time [ 22 :40:51] System Date [Fri 01/18/2002] Language [English] SATA1 :[Not Detected] SATA2 :[Not Detected] SATA3 :[Not Detected] SATA4 :[Not Detected] SATA5 :[Not Detected] SATA6 :[Not Detected] Storage Conî¿guration 3rd Party Storage Conî¿guration System Information Use [ENTER], [TAB] or [SHIFT-TAB] to select a î¿eld. Use [ ] or [-] to conî¿gure system time. v02.61 (C)Copyright 1985-2010, American Megatrends, Inc. Version 0306
Chapter 2: BIOS information 2-9 LBA/Large Mode [Auto] Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device supports this mode, and if the device was not previously formatted with LBA mode disabled. Conîguration options: [Disabled] [Auto] Block (Multi-Sector T ransfer) M [Auto] Enables or disables data multi-sectors transfers. When set to [Auto], the data transfer from and to the device occurs multiple sectors at a time if the device supports multi-sector transfer feature. When set to [Disabled], the data transfer from and to the device occurs one sector at a time. Conîguration options: [Disabled] [Auto] PIO Mode [Auto] Selects the PIO mode. Conîguration options: [Auto] [0] [1] [2] [3] [4] DMA Mode [Auto] Selects the DMA mode. Conîguration options: [Auto] SMART Monitoring [Auto] Sets the Smart Monitoring, Analysis, and Reporting T echnology . Conîguration options: [Auto] [Disabled] [Enabled] 32Bit Data T ransfer [Enabled] Enables or disables 32-bit data transfer . Conîguration options: [Disabled] [Enabled] This item only appears in the SA T A1~4 menus. 2.3.1 System Time [xx:xx:xx] Allows you to set the system time. 2.3.2 System Date [Day xx/xx/xxxx] Allows you to set the system date. 2.3.3 Language [English] Allows you to choose the BIOS language version from the options. Conîguration options: [Chinese (T rad.)] [Chinese (Simp.)] [Japanese] [French] [Deutsch] [English] 2.3.4 SA T A1~6 While entering Setup, the BIOS automatically detects the presence of SA T A devices. There is a separate submenu for each SA T A device. Select a device item then press <Enter> to display the SA T A device information. The BIOS automatically detects the values opposite the dimmed items (Device, V endor , Size, LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART monitoring). These values are not user-conîgurable. These items show Not Detected if no SA T A device is installed in the system. T ype [Auto] Selects the type of SA T A drive. Setting to [Auto] allows automatic selection of the appropriate SA T A device type. Select [CDROM] if you are speciîcally conîguring a CD-ROM drive. Select [ARMD] (A T API Removable Media Device) if your device is either a ZIP , LS-120, or MO drive. Conîguration options: [Not Installed] [Auto] [CDROM] [ARMD]
2-10 ASUS P7H55-M/USB3 2.3.6 3rd Party Storage Conîguration The 3rd Party Storage Conîguration menu automatically detects third party SA T A storage devices and allows you to conîgure these storage devices. Select an item then press <Enter> to display the sub-menu. Marvel Controller [IDE Mode] Allows you to select the controller âs operator mode. Conîguration options: [Disabled] [IDE Mode] [AHCI Mode] SA T A 6G-1/SA T A 6G-2 [Not Detected] While entering Setup, the BIOS automatically detects the presence of SA T A devices. This displays the status of the detected SA T A devices. LBA/Large Mode [Auto] Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device supports this mode, and if the device was not previously formatted with LBA mode disabled. Conîguration options: [Disabled] [Auto] Block (Multi-Sector T ransfer) M [Auto] Enables or disables data multi-sectors transfers. When set to [Auto], the data transfer from and to the device occurs multiple sectors at a time if the device supports multi-sector transfer feature. When set to [Disabled], the data transfer from and to the device occurs one sector at a time. Conîguration options: [Disabled] [Auto] 2.3.5 Storage Conîguration The Storage Conîguration menu allows you to conîgure your storage device(s). Select an item then press <Enter> to display the sub-menu. SA T A Conîguration [Enhanced] Conîguration options: [Disabled] [Compatible] [Enhanced] Configure SA T A as [IDE] Sets the conîguration for the Serial A T A connectors supported by the Southbridge chip. Conîguration options: [IDE] [AHCI] ⢠If you want to use the Serial A T A hard disk drives as Parallel A T A physical storage devices, keep the default setting [IDE]. ⢠If you want the Serial A T A hard disk drives to use the Advanced Host Controller Interface (AHCI), set this item to [AHCI]. The AHCI allows the onboard storage driver to enable advanced Serial A T A features that increases storage performance on random workloads by allowing the drive to internally optimize the order of commands. Hard Disk Write Protect [Disabled] Disables or enables device write protection. This will be ef fective only if the device is accessed through BIOS. Conîguration option: [Disabled] [Enabled] IDE Detect Time Out (Sec) [35] Selects the time out value for detecting A T A/A T API devices. Conîguration options: [0] [5] [10] [15] [20] [25] [30] [35]
Chapter 2: BIOS information 2-1 1 PIO Mode [Auto] Selects the PIO mode. Conîguration options: [Auto] [0] [1] [2] [3] [4] DMA Mode [Auto] Selects the DMA mode. Conîguration options: [Auto] SMART Monitoring [Auto] Sets the Smart Monitoring, Analysis, and Reporting T echnology . Conîguration options: [Auto] [Disabled] [Enabled] 32Bit Data T ransfer [Enabled] Enables or disables 32-bit data transfer . Conîguration options: [Disabled] [Enabled] 2.3.7 System Information This menu gives you an overview of the general system speciîcations. The BIOS automatically detects the items in this menu. BIOS Information Displays the auto-detected BIOS information Processor Displays the auto-detected CPU speciîcation System Memory Displays the auto-detected system memory
2-12 ASUS P7H55-M/USB3 2.4 Ai T weaker menu The Ai T weaker menu items allow you to conîgure overclocking-related items. Be cautious when changing the settings of the Ai T weaker menu items. Incorrect îeld values can cause the system to malfunction. The conîguration options for this chapter vary depending on the CPU and DIMM model you installed on the motherboard. 2.4.1 Ai Overclock T uner [Auto] Allows selection of CPU overclocking options to achieve desired CPU internal frequency . Select either one of the preset overclocking conîguration options: Manual Allows you to individually set overclocking parameters. Auto Loads the optimal settings for the system. D.O.C.P Overclocks DRAM frequency by adjusting BCLK frequency . X.M.P . If you install memory modules supporting the eXtreme Memory Proîle (X.M.P .) T echnology , choose this item to set the proîles supported by your memory modules for optimizing the system performance. Scroll down to display the following items: P7H55-M/USB3 BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit [D.O.C.P.] It's designed to overclock DRAM frequency by adjusting BCLK frequency. [X.M.P.] When X.M.P. is enabled BLCK frequency, CPU ration and memory parameters will be auto optimized. ââ Select Screen ââ Select Item Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit Conî¿gure System Performance Settings Ai Overclock Tuner [Auto] CPU Ratio Setting [20.0] Intel(R) SpeedStep(TM) Tech [Enabled] Intel(R) TurboMode Tech [Enabled] Xtreme Phase Full Power Mode [Auto] DRAM Frequency [Auto] QPI Frenquency [Auto] OC Tuner Utility OC Tuner Limit Value [Turbo Proî¿le] DRAM Timing Control CPU Differential Amplitude [Auto] CPU Clock Skew [Auto] ******* Please key in numbers directly! ******* CPU Voltage Mode [Offset] v02.61 (C)Copyright 1985-2010, American Megatrends, Inc. Offset Voltage [Auto] IMC Voltage [Auto] DRAM Voltage [Auto] CPU PLL Voltage [Auto] PCH Voltage [Auto] DRAM DATA REF Voltage on CHA [Auto] DRAM DATA REF Voltage on CHB [Auto] Auto PSI [Enabled] ********************************************** Load-Line Calibration [Auto] PCIE Spread Spectrum [Disabled] PCI/PCIe CLK Status [Enabled] Version 0306 v02.61 (C)Copyright 1985-2010, American Megatrends, Inc.
Chapter 2: BIOS information 2-13 DRAM O.C. Profile [DDR3-1600MHz] This item appears only when you set the Ai Overclock T uner item to [D.O.C.P .] and allows you to select a DRAM O.C. proîle, which applies different settings to DRAM frequency , DRAM timing and DRAM voltage. Conîguration options: [DDR3-1600MHz] [DDR3-1800MHz] [DDR3-1866MHz] [DDR3-2000MHz] [DDR3-2133MHz] [DDR3-2200MHz] The conîguration options for the following sub-item vary depending on the DIMMs you install on the motherboard. T o obtain the best performance of the X.M.P . DIMM or 1600MHz DIMM, install only one DIMM on each memory channel. 2.4.2 CPU Ratio Setting [Auto] Allows you to adjust the ratio between CPU Core Clock and BCLK Frequency . Use the < > and <-> keys to adjust the value. The valid value ranges dif ferently according to your CPU model. 2.4.3 Intel(R) SpeedStep(TM) T ech [Enabled] When set to [Disabled], the CPU runs at its default speed. When set to [Enabled], the CPU speed is controlled by the operating system. Conîguration options: [Disabled] [Enabled] Intel(R) T urboMode T ech [Enabled] This item appears only when you set the Intel(R) SpeedStep(TM) T ech item to [Enabled]. T urbo mode allows processor cores to run faster than the marked frequency in speciîc condition. 2.4.4 Xtreme Phase Full Power Mode [Auto] [Auto] Automatic conîguration. [Enabled] Enables Full Power Mode to ensure the best CPU overclocking performance. eXtreme Memory Profile [Disabled] This item appears only when you set the Ai Overclock T uner item to [X.M.P .] DRAM Frequency (MHz) CPU Frequency (GHz) 2.66 2.8 2.93 1333 Auto Auto Auto 1600 D.O.C.P . Auto Auto Above 1600 D.O.C.P . D.O.C.P . D.O.C.P . ⢠When using DIMMs with a frequency higher than the Intel ® CPU spec, use this ASUS exclusive DRAM O.C. Proîle function to overclock the DRAM. ⢠Adjust BCLK frequency to obtain a better performance after applying the D.O.C.P . function.
2-14 ASUS P7H55-M/USB3 The following two items appear only when you set the Ai Overclock T uner item to [Manual], [D.O.C.P .] or [X.M.P .]. 2.4.5 BCLK Frequency [XXX] Allows you to adjust the Internal Base Clock (BCLK). Use the < > and <-> keys to adjust the value. Y ou can also type the desired value using the numeric keypad. The values range from 80 to 500. 2.4.6 PCIE Frequency [100] Allows you to set the PCI Express frequency . Use the < > and <-> keys to adjust the PCIE frequency . The values range from 100 to 200. 2.4.7 DRAM Frequency [Auto] Allows you to set the DDR3 operating frequency . Conîguration options: [Auto] [DDR3-800MHz] [DDR3-1066MHz] [DDR3-1333MHz] The DRAM Frequency conîguration options vary with the BCLK Frequency item settings. Selecting a very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting. 2.4.8 QPI Frequency [Auto] Allows you to set the QPI operating frequency . Conîguration options: [Auto] [4270MHz] [4800MHz] 2.4.9 OC T uner Utility OC T uner automatically overclocks the CPU and DRAM frequency and voltage. Press [Enter] to start auto-tuning. C-State will be disabled automatically in about îve minutes. 2.4.10 OC T uner Limit V alue Conîguration options: [T urbo Proîle] 2.4.1 1 DRAM Timing Control [Auto] The items in this menu allow you to set the DRAM timing control features. The conîguration options for some of the following items vary depending on the DIMMs you install on the motherboard. 1st Information: 9-9-9-24-4-53-9-7-20 The values vary depending on your settings of the following sub-items: DRAM CAS# Latency [Auto] Conîguration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] ~ [1 1 DRAM Clock] DRAM RAS# to CAS# Delay [Auto] Conîguration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] ~ [15 DRAM Clock]
Chapter 2: BIOS information 2-15 DRAM RAS# PRE T ime [Auto] Conîguration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] ~ [15 DRAM Clock] DRAM RAS# ACT T ime [Auto] Conîguration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] ~ [31 DRAM Clock] DRAM RAS# to RAS# Delay [Auto] Conîguration options: [Auto] [1 DRAM Clock] ~ [7 DRAM Clock] DRAM REF Cycle T ime [Auto] Conîguration options: [Auto] [48 DRAM Clock] [60 DRAM Clock] [72 DRAM Clock] [82 DRAM Clock] ~ [180 DRAM Clock] [190 DRAM Clock] [200 DRAM Clock] DRAM WRITE Recovery T ime [Auto] Conîguration options: [Auto] [1 DRAM Clock] ~ [18 DRAM Clock] DRAM READ to PRE T ime [Auto] Conîguration options: [Auto] [3 DRAM Clock] ~ [15 DRAM Clock] DRAM FOUR ACT WIN T ime [Auto] Conîguration options: [Auto] [1 DRAM Clock] ~ [63 DRAM Clock] DRAM Back-T o-Back CAS# Delay [Auto] Conîguration options: [Auto] [4 DRAM Clock] ~ [32 DRAM Clock] 2nd Information: 2N-0-47 The values vary depending on your settings of the following sub-items: DRAM T iming Mode [Auto] Conîguration options: [Auto] [1N] [2N] [3N] DRAM Round T rip Latency on CHA [Auto] [Auto] [Advance 15 Clock] ~ [Advance 1 Clock] [Normal] [Delay 1 Clock] ~ [Delay 15 Clock] DRAM Round T rip Latency on CHB [Auto] [Auto] [Advance 15 Clock] ~ [Advance 1 Clock] [Normal] [Delay 1 Clock] ~ [Delay 15 Clock] 3rd Information: 5-5-16-10-10-10-7-6-4-7-7-4 The values vary depending on your settings of the following sub-items: DRAM WRITE to READ Delay(DD) [Auto] Conîguration options: [Auto] [1 DRAM Clock] ~ [8 DRAM Clock] DRAM WRITE to READ Delay(DR) [Auto] Conîguration options: [Auto] [1 DRAM Clock] ~ [8 DRAM Clock] DRAM WRITE to READ Delay(SR) [Auto] Conîguration options: [Auto] [10 DRAM Clock] ~ [22 DRAM Clock] DRAM READ to WRITE Delay(DD) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [14 DRAM Clock] DRAM READ to WRITE Delay(DR) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [14 DRAM Clock] DRAM READ to WRITE Delay(SR) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [14 DRAM Clock]
2-16 ASUS P7H55-M/USB3 DRAM READ to READ Delay(DD) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [9 DRAM Clock] DRAM READ to READ Delay(DR) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [9 DRAM Clock] DRAM READ to READ Delay(SR) [Auto] Conîguration options: [Auto] [4 DRAM Clock] [6 DRAM Clock] DRAM WRITE to WRITE Delay(DD) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [9 DRAM Clock] DRAM WRITE to WRITE Delay(DR) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [9 DRAM Clock] DRAM WRITE to WRITE Delay(SR) [Auto] Conîguration options: [Auto] [4 DRAM Clock] [6 DRAM Clock] 2.4.12 CPU Differential Amplitude [Auto] Different AMP might enhance BCLK overclocking ability . Conîguration options: [Auto] [700mV] [800mV] [900mV] [1000mV] 2.4.13 CPU Clock Skew [Auto] Adjusting this item may help enhancing BCLK overclocking ability . Y ou may need to adjust the NB Clock Skew item at the same time. Conîguration options: [Auto] [Normal] [Delay 100ps] ~ [Delay 1500ps] Some of the following items are adjusted by typing the desired values using the numeric keypad and press the <Enter> key . Y ou can also use the < > and <-> keys to adjust the value. T o restore the default setting, type [auto] using the keyboard and press the <Enter> key . 2.4.14 CPU V oltage Mode [Offset] Allows you to set the CPU Vcore over voltage. Different sub-items appear according to the VCore Over V oltage item setting. Conîguration options: [Offset] [Manual] Offset V oltage [Auto] This item appears only when you set the CPU V oltage Mode item to [Offset] and allows you to set the Offset voltage. The values range from 0.00625V to 0.50000V with a 0.00625V interval. Fixed V oltage [Auto] This item appears only when you set the CPU V oltage Mode item to [Manual] and allows you to set a îxed CPU voltage. The values range from 0.85V to 1.60V with a 0.00625V interval. Refer to the CPU documentation before setting the CPU Vcore voltage. Setting a high VCore voltage may damage the CPU permanently , and setting a low VCore voltage may make the system unstable.
Chapter 2: BIOS information 2-17 2.4.15 IMC V oltage [Auto] Allows you to set the CPU Integrated Memory Controller voltage. The values range from 1.10V to 1.45V with a 0.00625V interval. 2.4.16 DRAM V oltage [Auto] Allows you to set the DRAM voltage. The values range from 1.500V to 2.205V . According to Intel CPU spec, DIMMs with voltage requirement over 1.65V may damage the CPU permanently . We recommend you install the DIMMs with the voltage requirement below 1.65V . 2.4.17 CPU PLL V oltage [Auto] Allows you to set the CPU PLL voltage. The values range from 1.80V to 1.85V with a 0.05V interval. 2.4.18 PCH V oltage [Auto] Allows you to set the Platform Controller Hub voltage. The values range from 1.05000V to 1.40000V with a 0.00625V interval. The system may need better cooling system to work stably under high voltage settings. 2.4.19 DRAM DA T A REF V oltage on CHA/B [Auto] Allows you to set the DRAM DA T A Reference Voltage on Channel A/B. The values range from 0.395x to 0.630x with a 0.005x interval. Different ratio might enhance DRAM overclocking ability . 2.4.20 Auto PSI [Enabled] Enables or disables the Auto PSI mode. Conîguration options: [Disabled] [Enabled] 2.4.21 Load-Line Calibration [Auto] [Auto] Automatic conîguration. [Disabled] Follow Intel speciîcations. [Enabled] Improve CPU VDroop directly . 2.4.22 PCIE Spread Spectrum [Auto] [Auto] Automatic conîguration. [Disabled] Enhances the PCIE overclocking ability . [Enabled] Sets to [Enabled] for EMI control. 2.4.23 PCI/PCIe CLK Status [Enabled] Allows you to enable or disable clock for PCI/PCI Express ports. Conîguration options: [Disabled] [Enabled]
2-18 ASUS P7H55-M/USB3 2.5.1 CPU Conîguration The items in this menu show the CPU-related information that the BIOS automatically detects. The items shown in this screen may be different due to the CPU you installed. Be cautious when changing the settings of the Advanced menu items. Incorrect îeld values can cause the system to malfunction. 2.5 Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices. CPU Ratio Setting [Auto] Allows you to adjust the ratio between CPU Core Clock and BCLK Frequency . Use the < > and <-> keys to adjust the value. The valid value ranges dif ferently according to your CPU model. C1E Support [Disabled] [Enabled] Enables the C1E support function. This item should be enabled in order to enable the Enhanced Halt Sate. [Disabled] Disables this function. Hardware Prefetcher [Enabled] [Enabled] Enables the Hardware Prefetcher function. This item should be enabled in order to enable the L2 cache (MLC) Streamer Prefetcher for tuning performance of the speciîc application. [Disabled] Disables this function. v02.61 (C)Copyright 1985-2010, American Megatrends, Inc. P7H55-M/USB3 BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit Conî¿gure CPU. ââ Se l e c t S c r e e n â â S e l e c t I t e m Enter Go to Sub Screen F 1 G e n e r a l H e l p F 1 0 Sa v e a n d E x i t ESC Exit CPU Conî¿guration Uncore Conî¿guration Onboard Devices Conî¿guration USB Conî¿guration PCIPnP Intel VT-d [Disabled] Version 0306
Chapter 2: BIOS information 2-19 Adjacent Cache Line Prefetcher [Enabled] [Enabled] Enables the Adjacent Cache Line Prefetcher function. This item should be enabled in order to enable the L2 cache (MLC) Spatial Prefetcher for tuning performance of the speciîc application. [Disabled] Disables this function. Max CPUID V alue Limit [Disabled] [Enabled] Allows legacy operating systems to boot even without support for CPUs with extended CPUID functions. [Disabled] Disables this function. Intel(R) Virtualization T ech [Enabled] [Enabled] Allows a hardware platform to run multiple operating systems separately and simultaneously , enabling one system to virtually function as several systems. [Disabled] Disables this function. CPU TM function [Enabled] [Enabled] Enables the overheated CPU to throttle its clock speed to cool down. [Disabled] Disables this function. Execute-Disable Bit Capability [Enabled] [Enabled] Enables the No-Execution Page Protection T echnology . [Disabled] Forces the XD feature îag to always return to zero (0). Active Processor Cores [All] [All] Activate all CPU cores in the processor package. [1] Activate only 1 CPU core in the processor package. [2] Activate 2 CPU cores in the processor package. A20M [Disabled] [Enabled] Legacy OSes and APs may need this function enabled. [Disabled] Disables this function. Intel(R) SpeedStep (TM) T ech [Enabled] [Enabled] The CPU speed is controlled by the operating system. [Disabled] The CPU runs at its default speed. Intel(R) T urboMode T ech [Enabled] This item appears only when you set the Intel(R) SpeedStep(TM) T ech item to [Enabled]. T urbo mode allows processor cores to run faster than the marked frequency in speciîc condition. Intel(R) C-ST A TE T ech [Disabled] [Enabled] Allows the CPU to save more power under idle mode. Enable this item only when you install a C-State T echnology-supported CPU. [Disabled] Disables this function.
2-20 ASUS P7H55-M/USB3 2.5.2 Uncore Conîguration The North Bridge Conîguration menu allows you to change the advanced chipset settings. Memory Remap Feature [Enabled] [Disabled] Do not allow remapping of memory . [Enabled] Allows for the segment of system memory that was previously overwritten by PCI devices to be remapped above the total physical memory . Initiate Graphic Adapter [PCIE/PCI] Allows you to select the graphics controller as the primary boot device. Conîguration options: [PCI/PCIE] [PCIE/PCI] 2.5.3 Onboard Devices Conîguration HDA Controller [Enabled] Enables or disables the High Deînition Audio Controller . Conîguration options: [Enabled] [Disabled] Front Panel T ype [HD Audio] Set the front panel audio connector (AAFP) mode. Conîguration options: [AC97] [HD Audio] Realtek LAN [Enabled] [Enabled] Enables the Realtek LAN controller . [Disabled] Disables the controller . LAN Boot ROM [Disabled] This item appears only when you set the previous item to [Enabled]. [Enabled] Enables the Realtek Gigabit LAN Boot ROM. [Disabled] Disables the LAN Boot ROM. Serial Port1 Address [3F8/IRQ4] Allows you to select the Serial Port1 base address. Conîguration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3] Parallel Port Address [378] Allows you to select the Parallel Port base addresses. Conîguration options: [Disabled] [378] [278] [3BC] Parallel Port Mode [Normal] Allows you to select the Parallel Port mode. Conîguration options: [Normal] [Bi-Directional] [EPP] [ECP] [ECP & EPP] ECP Mode DMA Channel [DMA3] Appears only when the Parallel Port Mode is set to [ECP] or [ECP & EPP]. This item allows you to set the Parallel Port ECP DMA. Conîguration options: [DMA0] [DMA1] [DMA3]
Chapter 2: BIOS information 2-21 The USB Devices Enabled item shows the auto-detected values. If no USB device is detected, the item shows None. USB Functions [Enabled] Enables or disables the USB Host Controllers. Conîguration options: [Enabled] [Disabled] The following items appear only when you set USB Support to [Enabled]. Legacy USB Support [Auto] [Disabled] Disables the function. [Enabled] Enables the support for USB devices on legacy operating systems (OS). [Auto] Allows the system to detect the presence of USB devices at startup. If detected, the USB controller legacy mode is enabled. If no USB device is detected, the legacy USB support is disabled. BIOS EHCI Hand-off [Enabled] [Disabled] Disables the function. [Enabled] Enables the support for operating systems without an EHCI hand-off feature. USB Mass Storage Device Conîguration USB Mass Storage Reset Delay [20 Sec] Allows you to set the maximum time that the BIOS waits for the USB storage device to initialize. Conîguration options: [10 sec] [20 sec] [30 sec] [40 sec] Emulation T ype [Auto] Allows you to set the emulation type. Conîguration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CDROM] 2.5.4 USB Conîguration The items in this menu allows you to change the USB-related features. Select an item then press <Enter> to display the conîguration options. EPP V ersion [1.9] Appears only when the Parallel Port Mode is set to [EPP] or [ECP & EPP]. Conîguration options: [1.9] [1.7] Parallel Port IRQ [IRQ7] Allows you to select parallel port IRQ. Conîguration options: [IRQ5] [IRQ7]
2-22 ASUS P7H55-M/USB3 2.6 Power menu The Power menu items allow you to change the settings for the Advanced Power Management (APM). Select an item then press <Enter> to display the conîguration options. 2.6.1 Suspend Mode [Auto] Allows you to select the Advanced Conîguration and Power Interface (ACPI) state to be used for system suspend. [S1 (POS) only] Sets the APCI suspend mode to S1/POS (Power On Suspend). [S3 only] Sets the APCI suspend mode to S3/STR (Suspend T o RAM). [Auto] The system automatically conîgures the ACPI suspend mode. 2.6.2 ACPI 2.0 Support [Enabled] [Disabled] When set to [Disabled], the system will not add additional tables as per ACPI 2.0 speciîcations. [Enabled] When set to [Enabled], the system adds additional tables as per ACPI 2.0 speciîcations. 2.5.5 PCIPnP The PCIPnP menu items allow you to change the advanced settings for PCI/PnP devices. Plug And Play O/S [No] When set to [No] , BIOS conîgures all the devices in the system. When set to [Y es] and if you install a Plug and Play operating system, the operating system conîgures the Plug and Play devices not required for boot. Conîguration options: [No] [Y es] 2.5.6 Intel VT -d [Disabled] Enables or disables the Intel Virtualization T echnology for Directed I/O. Conîguration options: [Enabled] [Disabled] P7H55-M/USB3 BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit Select the ACPI state used for System Suspend. ââ Select Screen ââ Select Item - Change Option F1 General Help F10 Save and Exit ESC Exit Suspend Mode [Auto] ACPI 2.0 Support [Enabled] ACPI APIC Support [Enabled] Anti Surge Support [Enabled] APM Conî¿guration Hardware Monitor Version 0306 v02.61 (C)Copyright 1985-2010, American Megatrends, Inc.
Chapter 2: BIOS information 2-23 2.6.3 ACPI APIC Support [Enabled] [Disabled] When set to [Disabled], the system disable the Advanced Conîguration and Power Interface (ACPI) support in the Advanced Programmable Interrupt Controller (APIC). [Enabled] When set to [Enabled], the ACPI APIC table pointer is included in the RSDT pointer list. 2.6.4 Anti Surge Support [Enabled] Allows you to enable or disable the Anti-Surge protection feature. Conîguration options: [Disabled] [Enabled] 2.6.5 APM Conîguration Restore On AC Power Loss [Power Off] [Power Off] The system goes into off state after an AC power loss. [Power On] The system goes into on state after an AC power loss. [Last State] The system goes into either off or on state, whatever the system state was before the AC power loss. Power On By RTC Alarm [Disabled] [Disabled] Disables RTC to generate a wake event. [Enabled] When set to [Enabled], the items RTC Alarm Date (Days) / System Time will become user-conîgurable with set values. Power On By External Modems [Disabled] [Disabled] Disables to power up the computer when the external modem receives a call while the computer is in Soft-off mode. [Enabled] The computer could be powered up when the external modem receives a call while the computer is in Soft-off mode. The computer cannot receive or transmit data until the computer and applications are fully running. Thus, connection cannot be made on the îrst try . Turning an external modem off and then back on while the computer is off causes an initialization string that turns the system power on. Power On By PCI Devices [Disabled] [Disabled] Disables the PME to wake up from S5 by PCI devices. [Enabled] Allows you to turn on the system through a PCI LAN or modem card. This feature requires an A TX power supply that provides at least 1A on the 5VSB lead. Power On By PCIE Devices [Disabled] Allows you to enable or disable the PCIE devices to generate a wake event. [Disabled] Disables the PCIE devices to generate a wake event. [Enabled] Enables the PCIE devices to generate a wake event.
2-24 ASUS P7H55-M/USB3 Power On By PS/2 Keyboard [Disabled] Allows you to use speciîc keys on the keyboard to turn on the system. This feature requires an A TX power supply that provides at least 1A on the 5VSB lead. Conîguration options: [Disabled] [Space Bar] [Ctrl-Esc] [Power Key] 2.6.6 Hardware Monitor CPU/MB T emperature [xxxºC/xxxºF] The onboard hardware monitor automatically detects and displays the CPU and motherboard temperatures. Select Ignored if you do not wish to display the detected temperatures. CPU / Chassis Fan Speed [xxxxRPM] or [Ignored] / [N/A] The onboard hardware monitor automatically detects and displays the CPU, chassis, and power fan speed in rotations per minute (RPM). If the fan is not connected to the motherboard, the îeld shows N/A . Select Ignored if you do not wish to display the detected speed. CPU Fan Speed Low Limit [200] This item appears only when you enable the CPU Q-Fan Control feature and allows you to set the low limit of the CPU fan speed. Conîguration options: [500] [400] [300] [200] [100] [Ignored] CPU Q-Fan Control [Enabled] [Disabled] Disables the CPU Q-Fan control feature. [Enabled] Enables the CPU Q-Fan control feature. CPU Fan Profile [Standard] This item appears only when you enable the CPU Q-Fan Control feature and allows you to set the appropriate performance level of the CPU fan. [Standard] Sets to [Standard] to make the CPU fan automatically adjust depending on the CPU temperature. [Silent] Sets to [Silent] to minimize the fan speed for quiet CPU fan operation. [T urbo] Set to [T urbo] to achieve maximum CPU fan speed. [Manual] Allows you to individually set the CPU fan parameters. The following items appear only when you set the CPU Fan Proîle to [Manual]. CPU Upper T emperature [70ºC/158ºF] Sets the upper limit of the CPU temperature. Conîguration options: [40ºC/104ºF] [50ºC/122ºF] [70ºC/158ºF] [60ºC/140ºF] [70ºC/158ºF] [80ºC/176ºF] [90ºC/194ºF] CPU Fan Max. Duty Cycle [100%] Sets the maximum CPU fan duty cycle. When the CPU temperature reaches the upper limit, the CPU fan will operate at the maximum duty cycle. Conîguration options: [20%] [30%] [40%] [50%] [60%] [70%] [80%] [90%] [100%] CPU Lower T emperature [40ºC/104ºF] Displays the lower limit of the CPU temperature.
Chapter 2: BIOS information 2-25 CPU Fan Min. Duty Cycle [20%] Sets the minimum CPU fan duty cycle. When the CPU temperature is under 40ºC/104ºF , the CPU fan will operate at the minimum duty cycle. Conîguration options: [00%] [10%] [20%] [30%] [40%] [50%] [60%] [70%] [80%] [90%] [100%] CPU V oltage, 3.3V V oltage, 5V V oltage, 12V V oltage The onboard hardware monitor automatically detects the voltage output through the onboard voltage regulators. Select Ignored if you do not want to detect this item. 2.7 Boot menu The Boot menu items allow you to change the system boot options. Select an item then press <Enter> to display the submenu. 2.7.1 Boot Device Priority 1st ~ xxth Boot Device [Removable Dev .] These items specify the boot device priority sequence from the available devices. The number of device items that appears on the screen depends on the number of devices installed in the system. Conîguration options: [Removable Dev .] [Hard Drive] [A T API CD-ROM] [Disabled] ⢠T o select the boot device during system startup, press <F8> when ASUS Logo appears. ⢠T o access Windows ® OS in Safe Mode, do any of the following: ⢠Press <F5> when ASUS Logo appears. ⢠Press <F8> after POST . v02.61 (C)Copyright 1985-2010, American Megatrends, Inc. P7H55-M/USB3 BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit Speciî¿es the Boot Device Priority sequence. A virtual îoppy disk drive (Floppy Drive B: ) may appear when you set the CD-ROM drive as the î¿rst boot device. ââ Select Screen ââ Select Item Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit Boot Settings Boot Device Priority Boot Settings Conî¿guration Security Version 0306
2-26 ASUS P7H55-M/USB3 Set this item to [Enabled] to use the ASUS MyLogo2⢠feature. 2.7.2 Boot Settings Conîguration Quick Boot [Enabled] Enabling this item allows the BIOS to skip some power on self tests (POST) while booting to decrease the time needed to boot the system. When this item is set to [Disabled], BIOS performs all the POST items. Conîguration options: [Disabled] [Enabled] Full Screen Logo [Enabled] Enables or disables the full screen logo display feature. Conîguration options: [Disabled] [Enabled] AddOn ROM Display Mode [Force BIOS] Sets the display mode for option ROM. Conîguration options: [Force BIOS] [Keep Current] Bootup Num-Lock [On] Selects the power-on state for the NumLock. Conîguration options: [Off] [On] W ait for âF1â If Error [Enabled] When this item is set to [Enabled], the system waits for the F1 key to be pressed when error occurs. Conîguration options: [Disabled] [Enabled] Hit âDEL â Message Display [Enabled] When this item is set to [Enabled], the system displays the message Press DEL to run Setup during POST . Conîguration options: [Disabled] [Enabled]
Chapter 2: BIOS information 2-27 2.7.3 Security The Security menu items allow you to change the system security settings. Select an item then press <Enter> to display the conîguration options. Change Supervisor Password Select this item to set or change the supervisor password. The Supervisor Password item on top of the screen shows the default Not Installed. After you set a password, this item shows Installed. T o set a Supervisor Password: 1. Select the Change Supervisor Password item and press <Enter> . 2. In the password box, key in a password containing up to six letters or numbers, or both, then press <Enter>. 3. Conîrm the password when prompted. The message Password Installed appears after you successfully set your password. T o change the supervisor password, follow the same steps as in setting a supervisor password. T o clear the supervisor password, select the Change Supervisor Password then press <Enter> twice. The message Password uninstalled appears. If you forget your BIOS password, you can clear it by erasing the CMOS Real T ime Clock (RTC) RAM. See section 1.9 Jumpers for information on how to erase the RTC RAM. After you have set a supervisor password, the other items appear to allow you to change other security settings. User Access Level [Full Access] This item allows you to select the access restriction to the Setup items. Conîguration options: [No Access] [View Only] [Limited] [Full Access] No Access prevents user access to the Setup utility . View Only allows access but does not allow change to any îeld. Limited allows changes only to selected îelds, such as Date and T ime. Full Access allows viewing and changing all the îelds in the Setup utility . Change User Password Select this item to set or change the user password. The User Password item on top of the screen shows the default Not Installed. After you set a password, this item shows Installed. T o set a User Password: 1. Select the Change User Password item and press <Enter> . 2. In the password box, key in a password containing up to six letters or numbers, or both, then press <Enter>. 3. Conîrm the password when prompted. The message â Password Installedâ appears after you set your password successfully . T o change the user password, follow the same steps as in setting a user password.
2-28 ASUS P7H55-M/USB3 Clear User Password Select this item to clear the user password. Password Check [Setup] When this item is set to [Setup], BIOS checks for user password when accessing the Setup utility . When this item is set to [Always], BIOS checks for user password both when accessing Setup and booting the system. Conîguration options: [Setup] [Always] 2.8 T ools menu The T ools menu items allow you to conîgure options for special functions. Select an item then press <Enter> to display the submenu. 2.8.1 ASUS O.C. Proîle This item allows you to store or load multiple BIOS settings. Add Y our CMOS Proîle Allows you to save the current BIOS île to the BIOS Flash. In the Name sub-item, type your proîle name and press <Enter>, and then choose a proîle number to save your CMOS settings in the Save to sub-item. Load CMOS Proîles Allows you to load the previous BIOS settings saved in the BIOS Flash. Press <Enter>, and choose a proîle to load. Start O.C. Proîle Allows you to run the utility to save and load CMOS. Press <Enter> to run the utility . ⢠This function can support devices such as a USB îash disk with F A T 32/16 format and single partition only . ⢠DO NOT shut down or reset the system while updating the BIOS to prevent the system boot failure! ⢠We recommend that you update the BIOS île only coming from the same memory/CPU conîguration and BIOS version. ⢠Only the CMO île can be loaded. ASUS O.C. Proî¿le AI NET 2 ASUS EZ Flash 2 Express Gate [Disabled] IO LevelUp [Disabled] P7H55-M/USB# BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit Tools Settings Version 0306
Chapter 2: BIOS information 2-29 2.8.2 AI NET 2 Check Realtek LAN cable [Disabled] Enables or disables checking of the Realtek LAN cable during the Power-On Self-T est (POST). Conîguration options: [Disabled] [Enabled] 2.8.3 ASUS EZ Flash 2 Allows you to run ASUS EZ Flash 2. When you press <OK> , a conîrmation message appears. Use the left/right arrow key to select between [Y es] or [No] , then press <OK> to conîrm your choice. See section 2.1.2 ASUS EZ Flash 2 for details. 2.8.4 Express Gate [Disabled] Allows you to enable or disable the ASUS Express Gate feature. The ASUS Express Gate feature is a unique instant-on environment that provides quick access to the Internet browser and Skype. Conîguration options: [Disabled] [Enabled] [Auto] Enter OS T imer [10 Seconds] Sets countdown duration that the system waits at the Express Gateâs îrst screen before starting Windows or other installed OS. Choose [Prompt User] to stay at the îrst screen of Express Gate for user action. Conîguration options: [Prompt User] [1 second] [3 seconds] [5 seconds] [10 seconds] [15 seconds] [20 seconds] [30 seconds] Reset User Data [No] Allows you to clear Express Gateâs user data. [Reset] When setting this item to [Reset], ensure that you save the setting to the BIOS so that the user data will be cleared the next time you enter the Express Gate. User data includes the Express Gateâs settings as well as any personal information stored by the web browser such as bookmarks, cookies, browsing history . This is useful in the rare case where corrupt settings prevent the Express Gate environment from launching properly . [No] Set to [No] to disable the Reset User Data function when entering the Express Gate. The îrst time wizard will run again when you enter the Express Gate environment after clearing its settings. 2.8.5 IO LevelUp [Disabled] Conîguration options: [Disabled] [USB 3.0] [SA T A 6Gb/s]
2-30 ASUS P7H55-M/USB3 2.9 Exit menu The Exit menu items allow you to load the optimal or failsafe default values for the BIOS items, and save or discard your changes to the BIOS items. Pressing <Esc> does not immediately exit this menu. Select one of the options from this menu or <F10> from the legend bar to exit. Exit & Save Changes Once you are înished making your selections, choose this option from the Exit menu to ensure the values you selected are saved to the CMOS RAM. An onboard backup battery sustains the CMOS RAM so it stays on even when the PC is turned off. When you select this option, a conîrmation window appears. Select Ok to save changes and exit. Exit & Discard Changes Select this option only if you do not want to save the changes that you made to the Setup program. If you made changes to îelds other than System Date, System T ime, and Password, the BIOS asks for a conîrmation before exiting. Discard Changes This option allows you to discard the selections you made and restore the previously saved values. After selecting this option, a conîrmation appears. Select Ok to discard any changes and load the previously saved values. Load Setup Defaults This option allows you to load the default values for each of the parameters on the Setup menus. When you select this option or if you press <F5>, a conîrmation window appears. Select Ok to load default values. Select Exit & Save Changes or make other changes before saving the values to the non-volatile RAM. Exit system setup after saving the changes. F10 key can be used for this operation. P7H55-M/USB# BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit Version 0306 Exit Options Exit & Save Changes Exit & Discard Changes Discard Changes Load Setup Defaults
ASUS contact information ASUST eK Computer Inc. Address 15 Li-T e Road, Peitou, T aipei, T aiwan 1 1259 T elephone 886-2-2894-3447 Fax 886-2-2890-7798 E-mail info@asus.com.tw Web site www .asus.com.tw T echnical Support T elephone 86-21-3842991 1 Online support support.asus.com ASUS Computer International (America) Address 800 Corporate W ay , Fremont, CA 94539, USA T elephone 1-510-739-3777 Fax 1-510-608-4555 Web site usa.asus.com T echnical Support T elephone 1-812-282-2787 Support fax 1-812-284-0883 Online support support.asus.com ASUS Computer GmbH (Germany and Austria) Address Harkort Str . 21-23, D-40880 Ratingen, Germany Fax 49-2102-95991 1 Web site www .asus.de Online contact www .asus.de/sales T echnical Support T elephone (Component) 49-1805-010923* T elephone (System/Notebook/Eee/LCD) 49-1805-010920* Support Fax 49-2102-9599-1 1 Online support support.asus.com * EUR 0.14/minute from a German îxed landline; EUR 0.42/minute from a mobile phone.
DECLARATION OF CONFORMITY Per FCC Part 2 Section 2. 1077(a) Responsible Party Name: Asus Computer International Address: 800 Corporate Way, Fremont , CA 94539. Phone/Fax No: (510)739-3777/(510)608-4555 hereby declares that the product Product Name : Motherboard Model Number : P7H55-M/USB3 Conforms to the following specifications: FC C Pa rt 1 5, S ubp ar t B, Unintentional Radiators FC C Pa rt 1 5, S ubp ar t C, Intentional Radiators FC C Pa rt 1 5, S ubp ar t E, Intentional Radiators Supplementary Information: This device compl ies with part 15 of the FCC Rules. Operat ion is sub ject to the follo wing tw o condi tions: (1) This device may not ca use har mful inte rferen ce, and (2) this dev ice must acc ept an y in terf erence recei ved, incl uding inte rferen ce t hat ma y caus e un desire d op eratio n. Representative Personʼs Name : Steve Chang / President Signature : Date : May 14, 2010 EC Declaration of Conformity We, the undersigned, Manufacturer: ASUSTek COMPUTER INC. Address, City: No. 150, LI-TE RD., PEITOU, TAIPEI 112, TAIWAN R.O.C. Country: TAIWAN Authorized representative in Europe: ASUS COMPUTER GmbH Address, City: HARKORT STR. 21-23, 40880 RATINGEN Country: GERMANY declare the following apparatus: Product name : Motherboard Model name : P7H55-M/USB3 conform with the essential requirements of the following directives: 2004/108/EC-EMC Directive EN 55022:2 006 A1:2007 EN 61000-3 -2:2006 EN 55013:2 001 A1:2003 A2:2006 EN 55024:1 998 A1:2001 A2:2003 EN 61000-3 -3:2008 EN 55020:2 007 1999/5/EC-R &TTE Directive EN 300 328 V1.7.1(2006-05) EN 300 440 -1 V1.4.1(2008-05) EN 300 440 -2 V1.2.1(2008-03) EN 301 511 V9.0.2(2003-03) EN 301 908 -1 V3.2.1(2007-05) EN 301 908 -2 V3.2.1(2007-05) EN 301 893 V1.4.1(2005-03) EN 50360:2 001 EN 50371:2 002 EN 62311:2 008 EN 50385:2 002 EN 301 489 -1 V1.8.1(2008-04) EN 301 489 -3 V1.4.1(2002-08) EN 301 489 -4 V1.3.1(2002-08) EN 301 489 -7 V1.3.1(2005-11) EN 301 489 -9 V1.4.1(2007-11) EN 301 489 -17 V1.3.2(2008-04) EN 301 489 -24 V1.4.1(2007-09) EN 302 326 -2 V1.2.2(2007-06) EN 302 326 -3 V1.3.1(2007-09) EN 301 357 -2 V1.3.1(2006-05) 2006/95/EC-L VD Directive EN 60950 -1:2001 A1 1:2004 EN 60950-1:2006 EN6006 5:2002 A1:2006 EN 60950 -1:2006 A11:2009 2009/125/EC-ErP Directive Regulation (EC) No. 1275/2008 EN 62301:2 005 Regulation (EC) No. 642/2009 EN 62301:2 005 Regulation (EC) No. 278/2009 EN 62301:2 005 CE marking Declaration Date: May .14, 2010 Y ear to begin affixing CE marking:2010 Position : CEO Name : Jerry Shen Signature : __________ ( EC conformit y markin g)
ii E5846 First Edition V1 May 2010 Copyright © 2010 ASUST eK Computer Inc. All Rights Reserved. No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUST eK Computer Inc. (âASUSâ). Product warranty or service will not be extended if: (1) the product is repaired, modiîed or altered, unless such repair , modiîcation of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. ASUS PROVIDES THIS MANUAL âAS ISâ WITHOUT W ARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANT ABILITY OR FITNESS FOR A P ARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT , SPECIAL, INCIDENT AL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DA T A, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT . SPECIFICA TIONS AND INFORMA TION CONT AINED IN THIS MANUAL ARE FURNISHED FOR INFORMA TIONAL USE ONL Y , AND ARE SUBJECT TO CHANGE A T ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THA T MA Y APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT . Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identiîcation or explanation and to the ownersâ beneît, without intent to infringe. Offer to Provide Source Code of Certain Software This product may contain copyrighted software that is licensed under the General Public License (âGPLâ) and under the Lesser General Public License V ersion (âLGPLâ). The GPL and LGPL licensed code in this product is distributed without any warranty . Copies of these licenses are included in this product. Y ou may obtain the complete corresponding source code (as deîned in the GPL) for the GPL Software, and/or the complete corresponding source code of the LGPL Software (with the complete machine- readable âwork that uses the Libraryâ) for a period of three years after our last shipment of the product including the GPL Software and/or LGPL Software, which will be no earlier than December 1, 201 1, either (1) for free by downloading it from http://support.asus.com/download; or (2) for the cost of reproduction and shipment, which is dependent on the preferred carrier and the location where you want to have it shipped to, by sending a request to: ASUST eK Computer Inc. Legal Compliance Dept. 15 Li T e Rd., Beitou, T aipei 1 12 T aiwan In your request please provide the name, model number and version, as stated in the About Box of the product for which you wish to obtain the corresponding source code and your contact details so that we can coordinate the terms and cost of shipment with you. The source code will be distributed WITHOUT ANY W ARRANTY and licensed under the same license as the corresponding binary/object code. This offer is valid to anyone in receipt of this information. ASUST eK is eager to duly provide complete source code as required under various Free Op en Source Software licenses. If however you encounter any problems in obtaining the full corresponding source code we would be much obliged if you give us a notiîcation to the email address gpl@asus.com, stating the product and describing the problem (please do NOT send large attachments such as source code archives etc to this email address).
iii Contents Notices ........................................................................................................ vii Safety information .................................................................................... viii About this guide ....................................................................................... viii P7H55-M/USB3 speciîcations summary ................................................... x Chapter 1: Product introduction 1.1 Welcome! ...................................................................................... 1-1 1.2 Package contents ......................................................................... 1-1 1.3 Special features ............................................................................ 1-1 1.3.1 Product highlights ........................................................... 1-1 1.3.2 Innovative ASUS features ............................................... 1-3 1.4 Before you proceed ..................................................................... 1-6 1.5 Motherboard overview ................................................................. 1-7 1.5.1 Placement direction ........................................................ 1-7 1.5.2 Screw holes .................................................................... 1-7 1.5.3 Motherboard layout ......................................................... 1-8 1.5.4 Layout contents ............................................................... 1-8 1.6 Central Processing Unit (CPU) ................................................... 1-9 1.6.1 Installing the CPU ........................................................... 1-9 1.6.2 Installing the CPU heatsink and fan .............................. 1-12 1.6.3 Uninstalling the CPU heatsink and fan ......................... 1-13 1.7 System memory ......................................................................... 1-14 1.7.1 Overview ....................................................................... 1-14 1.7.2 Memory conîgurations .................................................. 1-15 1.7.3 Installing a DIMM .......................................................... 1-22 1.7.4 Removing a DIMM ........................................................ 1-22 1.8 Expansion slots .......................................................................... 1-23 1.8.1 Installing an expansion card ......................................... 1-23 1.8.2 Conîguring an expansion card ..................................... 1-23 1.8.3 PCI slot ......................................................................... 1-23 1.8.4 PCI Express x1 slots ..................................................... 1-23 1.8.5 PCI Express x16 slot ..................................................... 1-23 1.9 Jumpers ...................................................................................... 1-24 1.10 Connectors ................................................................................. 1-25 1.10.1 Rear panel connectors .................................................. 1-25 1.10.2 Internal connectors ....................................................... 1-26
iv Contents 1.1 1 Software support ........................................................................ 1-32 1.1 1.1 Installing an operating system ...................................... 1-32 1.1 1.2 Support DVD information .............................................. 1-32 Chapter 2: BIOS information 2.1 Managing and updating your BIOS ............................................ 2-1 2.1.1 ASUS Update utility ........................................................ 2-1 2.1.2 ASUS EZ Flash 2 ............................................................ 2-2 2.1.3 ASUS CrashFree BIOS ................................................... 2-3 2.1.4 ASUS BIOS Updater ....................................................... 2-3 2.2 BIOS setup program .................................................................... 2-6 2.2.1 BIOS menu screen .......................................................... 2-7 2.2.2 Menu bar ......................................................................... 2-7 2.2.3 Navigation keys ............................................................... 2-7 2.2.4 Menu items ..................................................................... 2-7 2.2.5 Submenu items ............................................................... 2-8 2.2.6 Conîguration îelds ......................................................... 2-8 2.2.7 Pop-up window ............................................................... 2-8 2.2.8 Scroll bar ......................................................................... 2-8 2.2.9 General help ................................................................... 2-8 2.3 Main menu .................................................................................... 2-8 2.3.1 System T ime [xx:xx:xx] ................................................... 2-9 2.3.2 System Date [Day xx/xx/xxxx] ......................................... 2-9 2.3.3 Language [English] ......................................................... 2-9 2.3.4 SA T A1~6 ......................................................................... 2-9 2.3.5 Storage Conîguration ................................................... 2-10 2.3.6 3rd Party Storage Conîguration ................................... 2-10 2.3.7 System Information ........................................................ 2-1 1 2.4 Ai T weaker menu ........................................................................ 2-12 2.4.1 Ai Overclock T uner [Auto] ............................................. 2-12 2.4.2 CPU Ratio Setting [Auto] .............................................. 2-13 2.4.3 Intel(R) SpeedStep(TM) T ech [Enabled] ....................... 2-13 2.4.4 Xtreme Phase Full Power Mode [Auto] ......................... 2-13 2.4.5 BCLK Frequency [XXX] ................................................ 2-14 2.4.6 PCIE Frequency [100] ................................................... 2-14
v Contents 2.4.7 DRAM Frequency [Auto] ............................................... 2-14 2.4.8 QPI Frequency [Auto] ................................................... 2-14 2.4.9 OC T uner Utility ............................................................. 2-14 2.4.10 OC T uner Limit V alue .................................................... 2-14 2.4.1 1 DRAM T iming Control [Auto] ......................................... 2-14 2.4.12 CPU Differential Amplitude [Auto] ................................. 2-16 2.4.13 CPU Clock Skew [Auto] ................................................ 2-16 2.4.14 CPU V oltage Mode [Offset] .......................................... 2-16 2.4.15 IMC V oltage [Auto] ....................................................... 2-17 2.4.16 DRAM V oltage [Auto] ................................................... 2-17 2.4.17 CPU PLL V oltage [Auto] ................................................ 2-17 2.4.18 PCH V oltage [Auto] ....................................................... 2-17 2.4.19 DRAM DA T A REF V oltage on CHA/B [Auto] ................. 2-17 2.4.20 Auto PSI [Enabled] ........................................................ 2-17 2.4.21 Load-Line Calibration [Auto] ......................................... 2-17 2.4.22 PCIE Spread Spectrum [Auto] ...................................... 2-17 2.4.23 PCI/PCIe CLK Status [Enabled] .................................... 2-17 2.5 Advanced menu ......................................................................... 2-18 2.5.1 CPU Conîguration ........................................................ 2-18 2.5.2 Uncore Conîguration .................................................... 2-20 2.5.3 Onboard Devices Conîguration .................................... 2-20 2.5.4 USB Conîguration ........................................................ 2-21 2.5.5 PCIPnP ......................................................................... 2-22 2.5.6 Intel VT -d [Disabled] ...................................................... 2-22 2.6 Power menu ................................................................................ 2-22 2.6.1 Suspend Mode [Auto] ................................................... 2-22 2.6.2 ACPI 2.0 Support [Enabled] .......................................... 2-22 2.6.3 ACPI APIC Support [Enabled] ....................................... 2-23 2.6.4 Anti Surge Support [Enabled] ....................................... 2-23 2.6.5 APM Conîguration ........................................................ 2-23 2.6.6 Hardware Monitor ......................................................... 2-24 2.7 Boot menu .................................................................................. 2-25 2.7.1 Boot Device Priority ...................................................... 2-25 2.7.2 Boot Settings Conîguration .......................................... 2-26 2.7.3 Security ......................................................................... 2-27
vi 2.8 T ools menu ................................................................................. 2-28 2.8.1 ASUS O.C. Proîle ......................................................... 2-28 2.8.2 AI NET 2 ........................................................................ 2-29 2.8.3 ASUS EZ Flash 2 .......................................................... 2-29 2.8.4 Express Gate [Disabled] ............................................... 2-29 2.8.5 IO LevelUp [Disabled] ................................................... 2-29 2.9 Exit menu .................................................................................... 2-30
vii Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: ⢠This device may not cause harmful interference, and ⢠This device must accept any interference received including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with manufacturer âs instructions, may cause harmful interference to radio communications. However , there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ⢠Reorient or relocate the receiving antenna. ⢠Increase the separation between the equipment and receiver . ⢠Connect the equipment to an outlet on a circuit different from that to which the receiver is connected. ⢠Consult the dealer or an experienced radio/TV technician for help. The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations. Changes or modiîcations to this unit not expressly approved by the party responsible for compliance could void the user âs authority to operate this equipment. Canadian Department of Communications Statement This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. This class B digital apparatus complies with Canadian ICES-003. DO NOT throw the motherboard in municipal waste. This product has been designed to enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin indicates that the product (electrical and electronic equipment) should not be placed in municipal waste. Check local regulations for disposal of electronic products. DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol of the crossed out wheeled bin indicates that the battery should not be placed in municipal waste. REACH Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulatory framework, we published the chemical substances in our products at ASUS REACH website at http://green.asus.com/english/REACH.htm.
viii Safety information Electrical safety ⢠T o prevent electric shock hazard, disconnect the power cable from the electric outlet before relocating the system. ⢠When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device. ⢠Before connecting or removing signal cables from the motherboard, ensure that all power cables are unplugged. ⢠Seek professional assistance before using an adapter or extension cord. These devices could interrupt the grounding circuit. ⢠Ensure that your power supply is set to the correct voltage in your area. If you are not sure about the voltage of the electrical outlet you are using, contact your local power company . ⢠If the power supply is broken, do not try to îx it by yourself. Contact a qualiîed service technician or your retailer . Operation safety ⢠Before installing the motherboard and adding devices on it, carefully read all the manuals that came with the package. ⢠Before using the product, ensure that all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer immediately . ⢠T o avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry . ⢠Avoid dust, humidity , and temperature extremes. Do not place the product in any area where it may become wet. ⢠Place the product on a stable surface. ⢠If you encounter technical problems with the product, contact a qualiîed service technician or your retailer . About this guide This user guide contains the information you need when installing and conîguring the motherboard. How this guide is organized This guide contains the following parts: ⢠Chapter 1: Product introduction This chapter describes the features of the motherboard and the new technology it supports. ⢠Chapter 2: BIOS information This chapter tells how to change system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided.
ix Conventions used in this guide T o ensure that you perform certain tasks properly , take note of the following symbols used throughout this manual. DANGER/W ARNING: Information to prevent injury to yourself when trying to complete a task. CAUTION: Information to prevent damage to the components when trying to complete a task. NOTE: T ips and additional information to help you complete a task. IMPORT ANT : Instructions that you MUST follow to complete a task. Where to înd more information Refer to the following sources for additional information and for product and software updates. 1. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information. 2. Optional documentation Y our product package may include optional documentation, such as warranty îyers, that may have been added by your dealer . These documents are not part of the standard package. T ypography Bold text Indicates a menu or an item to select. Italics Used to emphasize a word or a phrase. <Key> Keys enclosed in the less-than and greater-than sign means that you must press the enclosed key . Example: <Enter> means that you must press the Enter or Return key . <Key1> <Key2> <Key3> If you must press two or more keys simultaneously , the key names are linked with a plus sign ( ). Example: <Ctrl> <Alt> <D>
x P7H55-M/USB3 speciîcations summary (continued on the next page) CPU LGA1 156 socket for Intel ® Core⢠i7/ Core⢠i5/ Core⢠i3/ Pentium ® processors Supports Intel ® T urbo Boost T echnology * The Intel ® T urbo Boost T echnology support depends on the CPU types. ** Refer to www .asus.com for Intel ® CPU support list. Chipset Intel ® H55 Express Chipset Memory Dual-channel memory architecture 4 x 240-pin DIMM slots support maximum 16GB unbuffered non-ECC DDR3 2200(O.C.)/ 2133/ 2000/ 1866/ 1800/ 1600/ 1333/ 1066MHz memory modules * T o achieve DDR3âs frequency of 2200 MHz, use an Intel Core i7/ Core i5 CPU without the iGPU feature and install a VGA card. If you use Intel Core i5/ Core i3/ Pentium CPU with the iGPU feature, the maximum frequency is around 1600 MHz. ** Supports Intel ® Extreme Memory Proîle (XMP) *** Hyper DIMM support is subject to the physical characteristics of individual CPUs. Some hyper DIMMs only support one DIMM per channel. **** Refer to www .asus.com for the latest Memory QVL (Qualiîed V endors List). ***** When you install a total memory of 4GB or more, Windows ® 32-bit operating system may only recognize less than 3GB. We recommend a maximum of 3GB system memory if you are using a Windows ® 32-bit operating system. Expansion slots 1 x PCI Express⢠2.0 x16 slot 2 x PCI Express⢠2.0 x1 slots (2.5GT/s, gray slots) 1 x PCI slot VGA Multi-VGA output support: HDMI and RGB ports Supports HDMI with max. resolution of 1920x 1200 (@ 60Hz) Supports RGB with max. resolution of 2048x 1536 (@ 75 Hz) Maximum shared memory of 1748 MB Storage Intel ® H55 Express Chipset: - 6 x SA T A 3.0 Gb/s connectors Marvell ® 9123 controller: - 2 x SA T A 6.0 Gb/s ports LAN Realtek ® RTL81 1 1E Gigabit LAN controller featuring AI NET2 USB 2 x USB 3.0 / 2.0 ports (blue, at the back panel) 10 x USB 2.0 / 1.1 ports (6 ports at mid-board, 4 ports at the back panel)
xi P7H55-M/USB3 speciîcations summary Audio Realtek ® ALC887 8-channel* High Deînition Audio CODEC - Optical S/PDIF out ports at mid-board and back I/O - Support Jack-dectection, Multi-streaming, Front Panel Jack-Retasking (Only in Mic in port) * Use a chassis with HD audio module in the front panel to support an 8-channel audio output. ASUS unique features ASUS Exclusive Overclocking Features: - GPU Boost - ASUS TurboV - ASUS Auto T uning (Adopt Fast Mode) - ASUS Turbo Key ASUS Power Solution: - ASUS EPU ASUS Quiet Thermal Solution: - ASUS Fanless Design: Stylish Heatsink Solution ASUS EZ DIY : - ASUS O.C. Proîle - ASUS CrashFree BIOS 3 - ASUS EZ Flash 2 - ASUS My Logo 2 ASUS Express Gate ASUS exclusive overclocking features Precision T weaker 2: - vCore: Adjustable CPU voltage at 0.00625V increment - vIMC: Adjustable IMC voltage at 0.00625V increment - vDRAM Bus: Adjustable DRAM voltage at 0.015V increment - vPCH: Adjustable PCH voltage at 0.00625V increment - vCPU_PLL: Adjustable CPU_PLL voltage at 0.05V increment - iGPU: Adjustable iGPU voltage at 0.00625V increment SFS (Stepless Frequency Selection): - Internal Base Clock tuning from 80 MHz up to 500 MHz at 1MHz increment - PCI Express frequency tuning from 100MHz up to 200MHz at 1MHz increment (only for L ynnîeld CPUs) Overclocking Protection: - ASUS C.P .R.(CPU Parameter Recall) Back panel I/O ports 1 x PS/2 Keyboard / Mouse Combo port 1 x Optical S/PDIF Out port 1 x HDMI port 1 x D-Sub port 1 x LAN (RJ-45) port 2 x USB 3.0 / 2.0 ports (blue) 4 x USB 2.0 / 1.1 ports 3 x Audio jacks (8-channel) (continued on the next page)
xii Internal I/O connectors 3 x USB 2.0/1.1 connectors support additional 6 USB 2.0/1.1 ports 2 x SA T A 6Gb/s connectors 6 x SA T A 3Gb/s connectors 1 x CPU fan connector (4-pin) 1 x Chassis fan connector (3-pin) 1 x LPT connector 1 x S/PDIF Out header 1 x Front panel audio connector 1 x COM connector 1 x Clear CMOS jumper 1 x 24-pin EA TX power connector 1 x 8-pin A TX 12V power connector 1 x System panel connector BIOS 64 Mb Flash ROM, SPI, AMI BIOS, PnP , DMI 2.0, WfM 2.0, SM BIOS 2.6, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS 3 Manageability WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE Accessories 1 x Serial A T A 6.0Gb/s cable 2 x Serial A T A 3.0Gb/s cables 1 x I/O shield 1 x User Manual Support DVD Drivers ASUS Utilities ASUS Update Anti-virus software (OEM version) Form factor uA TX form factor: 9.6 in x 9.0 in (24.4 cm x 22.9 cm) P7H55-M/USB3 speciîcations summary * Speciîcations are subject to change without notice.
xiii
1-1 Chapter 1: Product introduction Chapter 1 Product introduction Motherboard ASUS P7H55-M/USB3 motherboard Cables 2 x Serial A T A 3.0Gb/s cables 1 x Serial A T A 6.0Gb/s cable Accessories 1 x I/O shield Application DVD ASUS motherboard support DVD Documentation User Manual If any of the above items is damaged or missing, contact your retailer . 1.3 Special features 1.3.1 Product highlights Intel ® LGA1 156 L ynnîeld / Clarkdale Processor Ready This motherboard supports the latest Intel ® L ynnîeld and Clarkdale processors in LGA1 156 package, which has memory and PCI Express controller integrated to support 2-channel (4 DIMMs) DDR3 memory and 16 PCI Express 2.0 lanes, providing great graphics performance. Intel ® L ynnîeld processor is one of the most powerful and energy efîcient CPU in the world. Moreover , Intel ® and Clarkdale processor integrated Graphics Procession Unit (GPU) which goes with Intel ® H55 chipset with VGA out can bring you to the whole new experience of the next generation VGA performance. It also provides separated 3D, 2D, and Video Engines to execute dif ferent graphic control in hardware. 1.1 Welcome! Thank you for buying an ASUS ® P7H55-M/USB3 motherboard! The motherboard delivers a host of new features and latest technologies, making it another standout in the long line of ASUS quality motherboards! Before you start installing the motherboard, and hardware devices on it, check the items in your package with the list below . 1.2 Package contents Check your motherboard package for the following items.
ASUS P7H55-M/USB3 1-2 Intel ® H55 The Intel ® H55 Express Chipset is the latest one-chipset design to support the latest 1 156 socket Intel ® Core⢠i7 / Core⢠i5/ Core⢠i3/ Pentium ® processors. Intel ® H55 provides improved performance by utilizing serial point-to-point links, allowing increased bandwidth and stability . Use Intel ® Core⢠i5 6 Series, Core⢠i3 5 Series, and Pentium ® CPU with H55 Express Chipset to enjoy the latest Intel ® integrated graphic performance. Dual-Channel DDR3 2200 (O.C.) MHz support The motherboard supports DDR3 memory that features data transfer rates up to 2200 (O.C.) MHz to meet the higher bandwidth requirements of the latest 3D graphics, multimedia, and Internet applications. The dual-channel DDR3 architecture enlarges the bandwidth of your system memory to boost system performance. PCI Express 2.0 support This motherboard supports PCI Express 2.0 devices for double speed and bandwidth which enhances system performance. HDMI support HDMI (High-Deînition Multimedia Interface) is a set of digital video standards that deliver multi-channel digital audio and uncompressed digital video for full HD 1080p visuals through a single cable. Supporting HDCP copy protection such as HD DVD and Blu-ray discs, HDMI provides you with the highest-quality home theater experience. S/PDIF digital sound ready This motherboard provides convenient connectivity to external home theater audio systems via the S/PDIF-out (SONY -PHILIPS Digital Interface) jack. It allows digital audio transfer and keeps the best signal quality . 8-channel audio CODEC Enjoy high-end sound quality on your PC! The onboard 8-channel High Deînition Audio CODEC enables high-quality 192KHz/24-bit audio output, jack-sensing feature, and multi-streaming technology . Gigabit LAN solution The onboard LAN controller is a highly integrated Gb LAN controller . It is enhanced with an ACPI management function to provide efîcient power management for advanced operating systems.
1-3 Chapter 1: Product introduction T rue USB 3.0 support Experience ultra-fast data transfers at 4.8 Gb/s with USB 3.0, which is the latest connectivity standard. Built to connect easily with the next- generation components and peripherals, USB 3.0 transfers data 10x faster and is also backward compatible with USB 2.0 components. Serial A T A 6.0 Gb/s support Adopting MARVELL âs professional SA T A 6 Gb/s solution, which supports the next-generation Serial A T A (SA T A) storage interface, this motherboard delivers up to 6.0 Gb/s data transfer rates. This motherboard also provides enhanced scalability , faster data retrieval, and double the bandwidth of current bus systems. 1.3.2 Innovative ASUS features T urbo Key ASUS T urbo Key allows you to turn the PC power button into a physical overclocking button. After the easy setup, T urbo Key can boost performances without interrupting ongoing work or gamesâwith just one touch! ASUS T urboV Feel the adrenaline rush of real-time OC-now a reality with the ASUS T urboV . This easy OC tool allows you to overclock without exiting or rebooting the OS; and its user-friendly interface makes overclock with just a few clicks away . Moreover, the ASUS OC proîles in T urboV provides the best O.C. settings in different scenarios. GPU Boost GPU Boost overclocks the integrated GPU in real time for the best graphics performance. User-friendly UI facilitates îexible frequency and voltage adjustments. Its ability to deliver multiple overclocking proîles also provides rapid and stable system-level upgrades. ASUS EPU ASUS EPU is a unique power saving technology that detects the current system loadings and adjusts the power consumption in real time. ASUS Auto T uning ASUS Auto T uning is an intelligent tool that automates overclocking to achieve a total system level up. Even O.C. beginners can achieve an extreme yet stable overclocking results with Auto T uning.
ASUS P7H55-M/USB3 1-4 ASUS Express Gate Express Gate is an ASUS exclusive OS, which lets you instantly access the Internet and key applications before entering the Windows ® OS. ⢠ASUS Express Gate supports installation on SA T A HDDs, USB HDDs and îash drives with at least 1.2GB free disk space. When installing it on USB HDDs or îash drives, connect the drives to the motherboard USB port before turning on the computer . ⢠The actual boot time depends on the system conîguration. ⢠ASUS Express Gate supports île uploading from SA T A HDDs, ODDs and USB drives. It supports île downloading to USB drives only . Stylish Heatsink The crystal-shaped heatsink features 0-dB thermal solution that offers users a noiseless PC environment. Not only the beautiful shape upgrades the visual enjoyment for motherboard users, but also the heatsink design lowers the temperature of the chipset and power phase area through high efîcient heat-exchange. Combined with usability and aesthetics, the ASUS crystal-shaped heatsink will give users an extremely silent and cooling experience with the elegant appearance! ASUS O.C. Proîle The motherboard features the ASUS O.C. Proîle that allows you to conveniently store or load multiple BIOS settings. The BIOS settings can be stored in the CMOS or a separate île, giving you the freedom to share and distribute your favorite settings. ASUS MyLogo2⢠This feature allows you to convert your favorite photo into a 256-color boot logo for a more colorful and vivid image on your screen. ASUS CrashFree BIOS 3 ASUS CrashFree BIOS 3 is an auto-recovery tool that allows you to restore a corrupted BIOS île using the bundled support DVD or USB îash disk that contains the latest BIOS île. ASUS EZ Flash 2 ASUS EZ Flash 2 is a utility that allows you to update the BIOS without using an OS-based utility .
1-5 Chapter 1: Product introduction ASUS AI NET2 ASUS AI NET2 remotely detects the cable connection immediately after turning on the system, and any faulty cable connections are reported back up to 100 meters at 1 meter accuracy . C.P .R. (CPU Parameter Recall) The BIOS C.P .R. feature automatically restores the CPU default settings when the system hangs due to overclocking failure. C.P .R. eliminates the need to open the system chassis and clear the RTC data. Simply shut down and reboot the system, and the BIOS automatically restores the CPU parameters to their default settings. Green ASUS This motherboard and its packaging comply with the European Unionâs Restriction on the use of Hazardous Substances (RoHS). This is in line with the ASUS vision of creating environment-friendly and recyclable products/packaging to safeguard consumersâ health while minimizing the impact on the environment.
ASUS P7H55-M/USB3 1-6 1.4 Before you proceed T ake note of the following precautions before you install motherboard components or change any motherboard settings. ⢠Unplug the power cord from the wall socket before touching any component. ⢠Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, to avoid damaging them due to static electricity . ⢠Hold components by the edges to avoid touching the ICs on them. ⢠Whenever you uninstall any component, place it on a grounded antistatic pad or in the bag that came with the component. ⢠Before you install or remove any component, ensure that the A TX power supply is switched off or the power cord is detached from the power supply . Failure to do so may cause severe damage to the motherboard, peripherals, or components. Onboard LED The motherboard comes with a standby power LED that lights up to indicate that the system is ON, in sleep mode, or in soft-off mode. This is a reminder that you must shut down the system and unplug the power cable before removing or plugging in any motherboard component. The illustration below shows the location of the onboard LED. SB_PWR ON Standby Power Powered Off OFF P 7 H 5 5 - M / US B 3 P7H55-M/USB3 Onboard LED
1-7 Chapter 1: Product introduction 1.5 Motherboard overview Before you install the motherboard, study the conîguration of your chassis to ensure that the motherboard îts into it. Ensure that you unplug the power cord before installing or removing the motherboard. Failure to do so can cause you physical injury and damage motherboard components. 1.5.1 Placement direction When installing the motherboard, ensure that you place it into the chassis in the correct orientation. The edge with external ports goes to the rear part of the chassis as indicated in the image below . 1.5.2 Screw holes Place six screws into the holes indicated by circles to secure the motherboard to the chassis. Do not overtighten the screws! Doing so can damage the motherboard. Place this side towards the rear of the chassis P7H55-M/USB3
ASUS P7H55-M/USB3 1-8 1.5.3 Motherboard layout P7H55- M /USB3 PCIEX16 PCI1 PCIEX1_1 PCIEX1_2 LPT USB1112 USB910 USB78 AAFP ATX12V EATXPWR CPU_FAN CHA_FAN Lithium Cell CMOS Power Super I/O AUDIO ICS 954 A4 ALC 887 RTL 8111E KB_USB56 64Mb BIOS Marvell 9123 SB_PWR CLRTC SPDIF_OUT 24.4cm(9.6in) LGA1156 Intel ® H55 DDR3 DIMM_A2 (64bit, 240-pin module) DDR3 DIMM_A1 (64bit, 240-pin module) DDR3 DIMM_B2 (64bit, 240-pin module) DDR3 DIMM_B1 (64bit, 240-pin module) LAN1_USB12 NEC 176 USB_3.0_12 SATA1 SATA3 SATA5 SATA2 SATA4 SATA6 SATA_6G_2 SATA_6G_1 COM1 PANEL SPDIF_O2 HDMI COM1 22.9cm(9.0in) 3 2 1 4 1 2 6 5 7 9 8 10 12 11 13 1.5.4 Layout contents Connectors/Jumpers/Slots/LED Pa ge Connectors/Jumpers/Slots/LED Page 1. CPU and chassis fan connectors (4-pin CPU_F AN, 3-pin CHA_FAN1) 1-28 8. USB connectors (10-1 pin USB78, USB910, USB1 1 12) 1-3- 2. A TX power connectors (24-pin EA TXPWR, 8-pin A TX12V) 1-27 9. System panel connector (20-8 pin P ANEL) 1-31 3. LGA1 156 CPU socket 1-9 10. Serial port connector (10-1 pin COM1) 1-28 4. DDR3 DIMM slots 1-14 1 1. LPT connector (26-1 pin LPT) 1-27 5. Onboard LED (SB_PWR) 1-6 12. Digital audio connector (4-1 pin SPDIF_OUT) 1-29 6. Clear RTC RAM (3-pin CLRTC) 1-24 13. Front panel audio connector (10-1 pin AAFP) 1-26 7. Serial AT A connectors (7-pin SA T A1-6) 1-29
1-9 Chapter 1: Product introduction 1.6 Central Processing Unit (CPU) The motherboard comes with a surface mount LGA1 156 socket designed for the Intel ® Core⢠i7 / Core⢠i5 / Core⢠i3 / Pentium ® processors. Unplug all power cables before installing the CPU. ⢠Upon purchase of the motherboard, ensure that the PnP cap is on the socket and the socket contacts are not bent. Contact your retailer immediately if the PnP cap is missing, or if you see any damage to the PnP cap/socket contacts/motherboard components. ASUS will shoulder the cost of repair only if the damage is shipment/transit-related. ⢠Keep the cap after installing the motherboard. ASUS will process Return Merchandise Authorization (RMA) requests only if the motherboard comes with the cap on the LGA1 156 socket. ⢠The product warranty does not cover damage to the socket contacts resulting from incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP cap. 1.6.1 Installing the CPU T o install a CPU: 1. Locate the CPU socket on the motherboard. T o prevent damage to the socket pins, do not remove the PnP cap unless you are installing a CPU. 2. Press the load lever with your thumb (A), and then move it to the right (B) until it is released from the retention tab. A B Load lever Retention tab P 7 H 5 5 - M / US B 3 P7H55-M/USB3 CPU socket LGA1 156
ASUS P7H55-M/USB3 1-10 3. Lift the load lever in the direction of the arrow until the load plate is completely lifted. Load plate 4. Remove the PnP cap from the CPU socket by lifting the tab only . The CPU îts in only one correct orientation. DO NOT force the CPU into the socket to prevent bending the connectors on the socket and damaging the CPU! Gold triangle mark Alignment keys CPU notches 5. Position the CPU over the socket, ensuring that the gold triangle is on the bottom-left corner of the socket, and then ît the socket alignment keys into the CPU notches. PnP cap Cap tab
1-1 1 Chapter 1: Product introduction 7. Close the load plate (A), and then push down the load lever (B), ensuring that the front edge of the load plate slides under the retention knob (C). B A C 8. Insert the load lever under the retention tab. 6. Apply some Thermal Interface Material to the exposed area of the CPU that the heatsink will be in contact with, ensuring that it is spread in an even thin layer . Some heatsinks come with pre- applied thermal paste. If so, skip this step. The Thermal Interface Material is toxic and inedible. DO NOT eat it. If it gets into your eyes or touches your skin, wash it off immediately , and seek professional medical help.
ASUS P7H55-M/USB3 1-12 1.6.2 Installing the CPU heatsink and fan The Intel ® LGA1 156 processor requires a specially designed heatsink and fan assembly to ensure optimum thermal condition and performance. ⢠When you buy a boxed Intel ® processor , the package includes the CPU fan and heatsink assembly . If you buy a CPU separately , ensure that you use only Intel ® -certiîed multi-directional heatsink and fan. ⢠Y our Intel ® LGA1 156 heatsink and fan assembly comes in a push-pin design and requires no tool to install. ⢠Use an LGA1 156-compatible CPU heatsink and fan assembly only . The LGA1 156 socket is incompatible with the LGA775 and LGA1366 sockets in size and dimension. Ensure that you have installed the motherboard to the chassis before you install the CPU fan and heatsink assembly . The type of CPU heatsink and fan assembly may differ , but the installation steps and functions should remain the same. The illustration above is for reference only . T o install the CPU heatsink and fan: 1. Place the heatsink on top of the installed CPU, ensuring that the four fasteners match the holes on the motherboard. A A B B 1 1 A B B A 2. Push down two fasteners at a time in a diagonal sequence to secure the heatsink and fan assembly in place. Orient the heatsink and fan assembly such that the CPU fan cable is closest to the CPU fan connector . If you purchased a separate CPU heatsink and fan assembly , ensure that you have properly applied Thermal Interface Material to the CPU heatsink or CPU before you install the heatsink and fan assembly .
1-13 Chapter 1: Product introduction 3. Connect the CPU fan cable to the connector on the motherboard labeled CPU_F AN. Do not forget to connect the CPU fan connector! Hardware monitoring errors can occur if you fail to plug this connector . 1.6.3 Uninstalling the CPU heatsink and fan T o uninstall the CPU heatsink and fan: 1. Disconnect the CPU fan cable from the connector on the motherboard. 2. Rotate each fastener counterclockwise. 3. Pull up two fasteners at a time in a diagonal sequence to disengage the heatsink and fan assembly from the motherboard. A A B B A A B B CPU_F AN CPU FAN PWM CPU FAN IN CPU FAN PWR GND P 7 H 5 5 - M / US B 3 P7H55-M/USB3 CPU fan connector
ASUS P7H55-M/USB3 1-14 1.7 System memory 1.7.1 Overview The motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets. A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for better performance with less power consumption. The îgure illustrates the location of the DDR3 DIMM sockets: Channel Sockets Channel A DIMM_A1 and DIMM_A2 Channel B DIMM_B1 and DIMM_B2 4. Carefully remove the heatsink and fan assembly from the motherboard. 5. Rotate each fastener clockwise to ensure correct orientation when reinstalling. P 7 H 5 5 - M / US B 3 P7H55-M/USB3 240-pin DDR3 DIMM sockets DIMM_A2 DIMM_A1 DIMM_B2 DIMM_B1
1-15 Chapter 1: Product introduction 1.7.2 Memory conîgurations Y ou may install 512MB, 1GB, 2GB, and 4GB unbuffered non-ECC DDR3 DIMMs into the DIMM sockets. ⢠The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value. T o operate at the vendor-marked or at a higher frequency , refer to section Ai T weaker menu for manual memory frequency adjustment. ⢠For system stability , use a more efîcient memory cooling system to support a full memory load (4 DIMMs) or overclocking condition. ⢠Y ou may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel conîguration. Any excess memory from the higher-sized channel is then mapped for single-channel operation. ⢠Due to Intel spec deînition, X.M.P . DIMMs are supported for one DIMM per channel only . ⢠According to Intel CPU spec, DIMM voltage below 1.65V is recommended to protect the CPU. ⢠According to Intel CPU spec, CPUs with a core frequency of 2.66GHz support the maximum DIMM frequency of up to DDR3 1333. T o use DIMMs of a higher frequency with a 2.66GHz CPU, enable the DRAM O.C. Proîle feature in BIOS. Refer to section 2.4.1 Ai Overclock T uner for details. ⢠Always install DIMMs with the same CAS latency . For optimum compatibility , we recommend that you obtain memory modules from the same vendor . ⢠Due to the memory address limitation on 32-bit Windows ® OS, when you install 4GB or more memory on the motherboard, the actual usable memory for the OS can be about 3GB or less. For effective use of memory , we recommend that you do any of the following: - Use a maximum of 3GB system memory if you are using a 32-bit Windows ® OS. - Install a 64-bit Windows ® OS when you want to install 4GB or more on the motherboard. ⢠This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less. ⢠ASUS exclusively provides hyper DIMM support function. ⢠Hyper DIMM support is subject to the physical characteristics of individual CPUs. ⢠According to Intel spec deînition, DDR3 1600 is supported for one DIMM per channel only . ASUS exclusively provides two DDR3 1600 DIMM support for each memory channel. ⢠Visit the ASUS website at www .asus.com for the latest QVL.
ASUS P7H55-M/USB3 1-16 P7H55-M/USB3 Motherboard Qualiîed V endors Lists (QVL) DDR3-1600 MHz capability for L ynnîeld CPU (2.66 GHz) V endor Part No Size SS/ DS Chip Brand Chip No. Timing V oltage DIMM socket support (Optional) A* B* C* A-Data AD31600E001GM(O)U3K 3072MB (Kit of 3) SS - - 8-8-8-24 1.65V-1.85V ⢠⢠⢠A-Data AD31600E002GU(XMP) 2048MB DS - - 7-7-7-20 1.75-1.85V ⢠⢠A-Data AD31600X002GMU(XMP) 4096MB (Kit of 2) DS - - 7-7-7-20 1.75-1.85V ⢠⢠⢠COR SAIR TR3X3G1600C8D(XMP) 3072MB (Kit of 3) SS - - 8-8-8-24 1.65V ⢠⢠⢠COR SAIR CMX4GX3M2A1600C9(XMP) 4096MB (Kit of 2) DS - - 9-9-9-24 1.65V ⢠⢠⢠COR SAIR CMX4GX3M2A1600C9(XMP) 4096MB (Kit of 2) DS - - 9-9-9-24 1.65V ⢠⢠COR SAIR TR3X6G1600C8 G(XMP) 6144MB (Kit of 3 ) DS - - - - ⢠⢠COR SAIR TR3X6G1600C8D G(XMP) 6144MB (Kit of 3 ) DS - - 8-8-8-24 1.65V ⢠⢠⢠COR SAIR TR3X6G1600C9 G(XMP) 6144MB (Kit of 3 ) DS - - 9-9-9-24 1.65V ⢠⢠⢠COR SAIR TR3X6G1600C8D G(XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 1.65V ⢠⢠⢠COR SAIR CMX8GX3M4A1600C9(XMP) 8192MB (Kit of 4) DS - - 9-9-9-24 1.65V ⢠⢠⢠Crucial BL12864BA1608.8SFB(XMP) 3072MB (Kit of 3) SS - - 8-8-8-24 1.8V ⢠⢠⢠Crucial BL12864BE2009.8SFB3(EPP) 3072MB (Kit of 3) SS - - 9-9-9-28 2.0V ⢠⢠⢠Crucial BL25664BN1608.16FF(XMP) 6144MB (Kit of 3 ) DS - - - - ⢠⢠Crucial BL25664TB1608.K16SF(XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 - ⢠⢠⢠Crucial BL25664TG1608.K16SF(XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 - ⢠⢠⢠Crucial BL25664TR1608.K16SF(XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 - ⢠⢠⢠G.SKILL F3-12800CL9D-2GBNQ(XMP) 2048MB (Kit of 2) SS - - 9-9-9-24 1.5V~1.6V ⢠⢠⢠G.SKILL F3-12800CL7D-4GBECO(XMP) 4096MB (Kit of 2) DS - - 7-8-7-24 1.35V(low voltage) ⢠⢠⢠G.SKILL F3-12800CL8D-4GBRM(XMP) 4096MB (Kit of 2) DS - - 8-8-8-24 1.60V ⢠⢠⢠G.SKILL F3-12800CL9D-4GBECO(XMP) 4096MB (Kit of 2) DS - - 9-9-9-24 1.35V(low voltage) ⢠⢠⢠G.SkiLL F3-12800CL8T-6GBPI(XMP) 6144MB (Kit of 3) DS - - 8-8-8-21 1.6-1.65V ⢠⢠⢠G.SKILL F3-12800CL9T-6GBNQ(XMP) 6144MB (Kit of 3) DS - - 9-9-9-24 1.5V~1.6V ⢠⢠â¢
1-17 Chapter 1: Product introduction DDR3-1600 MHz capability for L ynnîeld CPU (2.88 GHz and 2.93 GHz) V endor Part No. Size SS/DS Chip Brand Chip No. Timing V oltage DIMM socket support (Optional) A* B* C* A-Data AD31600E001 GM(O)U3K 3072MB (Kit of 3) SS - - 8-8-8-24 1.65V - 1.85V ⢠⢠⢠A-Data AD31600X002 GMU(XMP) 4096MB (Kit of 2) DS - - 7-7-7-20 1.75- 1.85V ⢠⢠⢠CORSAIR TR3X3G1600C8D (XMP) 3072MB (Kit of 3) SS - - 8-8-8-24 1.65V ⢠⢠⢠CORSAIR CMX4GX3M2A1600 C9(XMP) 4096MB (Kit of 2) DS - - 9-9-9-24 1.65V ⢠⢠⢠CORSAIR CMX4GX3M2 A1600C9(XMP) 4096MB (Kit of 2) DS - - 9-9-9-24 1.65V ⢠⢠⢠CORSAIR TR3X6G1600C8 G (XMP) 6144MB (Kit of 3) DS - - - - ⢠⢠⢠CORSAIR TR3X6G1600C8D G (XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 1.65V ⢠⢠⢠CORSAIR TR3X6G1600C9 G (XMP) 6144MB (Kit of 3) DS - - 9-9-9-24 1.65V ⢠⢠⢠CORSAIR TR3X6G1600C8D G (XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 1.65V ⢠⢠⢠CORSAIR CMX8GX3M4 A1600C9(XMP) 8192MB (Kit of 4) DS - - 9-9-9-24 1.65V ⢠⢠⢠Crucial BL12864BA1608.8SFB (XMP) 3072MB (Kit of 3) SS - - 8-8-8-24 1.8V ⢠⢠⢠Crucial BL12864BE2009.8SFB3 (EPP) 3072MB (Kit of 3) SS - - 9-9-9-28 2.0V ⢠⢠⢠Crucial BL25664BN1608.16FF (XMP) 6144MB (Kit of 3 ) DS - - - - ⢠⢠Crucial BL25664TB1608.K16SF (XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 - ⢠⢠⢠Crucial BL25664TG1608.K16SF (XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 - ⢠⢠⢠Crucial BL25664TR1608.K16SF (XMP) 6144MB (Kit of 3) DS - - 8-8-8-24 - ⢠⢠⢠G.SKILL F3-12800CL9D-2GBNQ (XMP) 2048MB (Kit of 2) SS - - 9-9-9-24 1.5V~ 1.6V ⢠⢠G.SKILL F3-12800CL7D-4GBECO (XMP) 4096MB (Kit of 2) DS - - 7-8-7-24 1.35V (low voltage) ⢠⢠⢠G.SKILL F3-12800CL8D-4GBRM (XMP) 4096MB (Kit of 2) DS - - 8-8-8-24 1.60V ⢠⢠⢠G.SKILL F3-12800CL9D-4GBECO (XMP) 4096MB (Kit of 2) DS - - 9-9-9-24 1.35V (low voltage) ⢠⢠⢠G.SkiLL F3-12800CL8T -6GBPI (XMP) 6144MB (Kit of 3) DS - - 8-8-8-21 1.6- 1.65V ⢠⢠⢠G.SKILL F3-12800CL9T-6GBNQ (XMP) 6144MB (Kit of 3) DS - - 9-9-9-24 1.5V~ 1.6V ⢠⢠⢠GEIL GV34GB1600C8DC (XMP) 2048MB DS - - 8-8-8-28 1.6V ⢠⢠â¢
ASUS P7H55-M/USB3 1-18 DDR3-1333 MHz capability for L ynnîeld CPU (2.66 GHz, 2.88 GHz, and 2.93 GHz) V endor Part No. Size SS/ DS Chip Brand Chip No. Timing V oltage DIMM socket support (Optional) A* B* C* A-Data AD31333001GOU 1024MB SS A-Data AD30908C8D-151C E0906 - - ⢠⢠⢠A-Data AD31333G001GOU 3072MB (Kit of 3) SS - - 8-8-8-24 1.65- 1.85V ⢠⢠⢠A-Data AD31333002GOU 2048MB DS A-Data AD30908C8D-151C E0903 - - ⢠⢠⢠A-Data AD31333G002GMU 2048MB DS - - 8-8-8-24 1.65- 1.85V ⢠⢠⢠Apacer 78.A1GC6.9L1 2048MB DS AP ACER AM5D5808DEWSBG - - ⢠⢠⢠COR SAIR CM3X1024-1333C9DHX 1024MB SS - - 9-9-9-24 1.60V ⢠⢠COR SAIR CM3X1024-1333C9 1024MB SS - - 9-9-9-24 1.60V ⢠⢠⢠COR SAIR TR3X3G1333C9 G 3072MB (Kit of 3) SS - - 9-9-9-24 1.50V ⢠⢠⢠COR SAIR TR3X3G1333C9 G 3072MB (Kit of 3) SS - - 9-9-9-24 1.50V ⢠⢠⢠COR SAIR TR3X3G1333C9 3072MB (Kit of 3) SS - - 9 1.5V ⢠⢠⢠COR SAIR CM3X1024-1333C9DHX 1024MB DS Corsair - - - ⢠⢠⢠COR SAIR CM3X2048-1333C9DHX 2048MB DS - - - - ⢠⢠COR SAIR TW3X4G1333C9 G 4096MB (Kit of 2) DS - - 9-9-9-24 1.50V ⢠⢠⢠COR SAIR CMX8GX3M4A1333C9 8192MB (Kit of 4) DS - - 9--9- 9-24 1.50V ⢠⢠⢠Crucial CT12864BA1339.8FF 1024MB SS Micron 9FF22D9KPT 9 - ⢠⢠⢠Crucial BL12864T A1336.8SFB1 2048MB (Kit of 2) SS - - 6-6-6-20 1.8V ⢠⢠⢠Crucial CT25664BA1339.16FF 2048MB DS Micron 9KF27D9KPT 9 - ⢠⢠⢠Crucial BL 25664ABA 1336.16S FB1 4096MB (Kit of 2) DS - - 6-6-6-20 1.8V ⢠⢠Crucial BL25664BA1336.16SFB1 4096MB (Kit of 2) DS - - 6-6-6-20 1.8V ⢠⢠Crucial BL25664BN1337.16FF (XMP) 6144MB (Kit of 3 ) DS - - 7-7-7-24 1.65V ⢠⢠⢠ELPIDA EBJ10UE8EDF0-DJ-F 1024MB SS ELPIDA J1 108EDSE-DJ-F - 1.35V (low voltage) ⢠⢠⢠ELPIDA EBJ21UE8EDF0-DJ-F 2048MB DS ELPIDA J1108EDSE-DJ-F - 1.35V (low voltage) ⢠⢠G.SKILL F3-10600CL7D-2GBPI (XMP) 1024MB SS G.SKILL - - - ⢠⢠⢠G.SKILL F3-10600CL8D-2GBHK 1024MB SS G.SKILL - - - ⢠⢠⢠G.SKILL F3-10600CL9D-2GBPK 1024MB SS G.SKILL - - - ⢠⢠⢠G.SKILL F3-10666CL7T-3GBPK 3072MB (Kit of 3) SS - - 7-7-7-18 1.5~ 1.6V ⢠⢠â¢
1-19 Chapter 1: Product introduction DDR3-1800 MHz capability for L ynnîeld CPU (2.66 GHz) V endor Part No Size SS/ DS Chip Brand Chip No. Timing V oltage DIMM socket support (Optional) A* B* C* OCZ OCZ3G18002GK 2048MB (Kit of 2) SS - - â9-9- 9-27 1.9V ⢠⢠OCZ QCZ3P18004GK 4096MB (Kit of 2) DS - - 8-8-8-27 1.9V ⢠V endor Part No Size SS/ DS Chip Brand Chip No. Timing Voltage DIMM socket support (Optional) A* B* C* CORSAIR CM G4GX3M2A2000C8 (XMP) 4096MB (Kit of 2) DS - - 8-8-8-24 1.65V ⢠⢠⢠G.SKILL F3-16000CL9D- 4GBTD(XMP) 4096MB (Kit of 2) DS - - 9-9-9-27 1.65V ⢠KINGSTON KHX2000C8D3T1K3/ 3GX(XMP) 3072MB (Kit of 3) SS - - - 1.65V ⢠⢠KINGSTON KHX2000C9D3T1K3/ 3GX(XMP) 3072MB (Kit of 3) SS - - - 1.65V ⢠⢠⢠KINGSTON KHX2000C8D3T1K3/ 6GX(XMP) 6144MB (Kit of 3) DS - - - 1.65V ⢠⢠OCZ OCZ3P20002GK(EPP) 2048MB (Kit of 2) SS - - 9-9-9-30 1.85V ⢠⢠OCZ OCZ3P2000EB2GK 2048MB (Kit of 2) SS - - 9-8-8-30 1.8V ⢠⢠OCZ OCZ3P20004GK(EPP) 4096MB (Kit of 2) DS - - 9-9-9-30 1.9V ⢠⢠DDR3-2000 MHz capability for L ynnîeld CPU (2.66 GHz) V endor Part No Size SS/ DS Chip Brand Chip No Timing V oltage DIMM socket support (Optional) A* B* C* KINGSTON KHX1866C9D3T1K3/ 6GX(XMP) 6144MB(Kit of 3 ) DS - - - 1.65V ⢠⢠OCZ OCZ3P1866C9L V6GK 6144MB(Kit of 3) DS - - 9-9-9-28 1.65V ⢠⢠DDR3-1866 MHz capability for L ynnîeld CPU (2.66 GHz)
ASUS P7H55-M/USB3 1-20 V endor Part No. Size SS/ DS Chip Brand0 Chip No. T iming V oltage DIMM socket support (Optional) A* B* C* A-Data AD31333001GOU 1024MB SS A-Data AD30908C8D-151C E0906 - - ⢠⢠⢠A-Data AD31333G001GOU 3072MB (Kit of 3) SS - - 8-8-8-24 1.65-1.85V ⢠⢠⢠A-Data AD31333002GOU 2048MB DS A-Data AD30908C8D-151C E0903 - - ⢠⢠⢠A-Data AD31333G002GMU 2048MB DS - - 8-8-8-24 1.65-1.85V ⢠⢠Apacer 78.A1GC6.9L1 2048MB DS AP ACER - - ⢠⢠⢠COR SAIR CM3X1024-1333C9DHX 1024MB SS - - 9-9-9-24 1.60V ⢠⢠⢠COR SAIR CM3X1024-1333C9 1024MB SS - - 9-9-9-24 1.60V ⢠⢠⢠COR SAIR TR3X3G1333C9 G 3072MB (Kit of 3) SS - - 9-9-9-24 1.50V ⢠⢠⢠COR SAIR TR3X3G1333C9 G 3072MB (Kit of 3) SS - - 9-9-9-24 1.50V ⢠⢠⢠COR SAIR TR3X3G1333C9 3072MB (Kit of 3) SS - - 9 1.5V ⢠⢠⢠COR SAIR CM3X1024-1333C9DHX 1024MB DS Corsair - - - ⢠⢠⢠COR SAIR CM3X2048-1333C9DHX 2048MB DS - - - - ⢠⢠⢠COR SAIR TW3X4G1333C9 G 4096MB (Kit of 2) DS - - 9-9-9-24 1.50V ⢠⢠⢠Crucial CT12864BA1339.8FF 1024MB SS Micron 9FF22D9KPT 9 - ⢠⢠⢠Crucial BL12864T A1336.8SFB1 2048MB (Kit of 2) SS - - 6-6-6-20 1.8V ⢠⢠⢠Crucial CT25664BA1339.16FF 2048MB DS Micron 9KF27D9KPT 9 - ⢠⢠⢠Crucial BL25664ABA1336.16SFB1 4096MB (Kit of 2) DS - - 6-6-6-20 1.8V ⢠⢠Crucial BL25664BA1336.16SFB1 4096MB (Kit of 2) DS - - 6-6-6-20 1.8V ⢠⢠Crucial BL25664BN1337.16FF (XMP) 6144MB (Kit of 3 ) DS - - 7-7-7-24 1.65V ⢠⢠⢠ELPIDA EBJ10UE8EDF0-DJ-F 1024MB SS ELPIDA J1108EDSE-DJ-F - 1.35V (low voltage) ⢠⢠⢠ELPIDA EBJ21UE8EDF0-DJ-F 2048MB DS ELPIDA J1 108EDSE-DJ-F - 1.35V (low voltage) ⢠⢠G.SKILL F3-10600CL7D- 2GBPI(XMP) 1024MB SS G.SKILL - - - ⢠⢠⢠G.SKILL F3-10600CL8D-2GBHK 1024MB SS G.SKILL - - - ⢠⢠⢠G.SKILL F3-10600CL9D-2GBPK 1024MB SS G.SKILL - - - ⢠⢠⢠G.SKILL F3-10666CL7T-3GBPK 3072MB (Kit of 3) SS - - 7-7-7-18 1.5~1.6V ⢠⢠⢠G.SKILL F3-10666CL9T-3GBNQ 3072MB (Kit of 3) SS - - 9-9-9-24 1.5~1.6V ⢠⢠DDR3-1333 MHz capability for Clarkdale CPU
1-21 Chapter 1: Product introduction SS: Single-sided / DS: Double-sided DIMM support: ⢠A*: Supports one module inserted into any slot as single-channel memory conîguration. ⢠B*: Supports one pair of modules inserted into either the blue slots or the black slots as one pair of dual-channel memory conîguration. ⢠C*: Supports two pairs of modules inserted into both the blue slots and the black slots as two pairs of dual-channel memory conîguration. ⢠The QVL for the Clarkdale CPU is not included in this manual. Y ou can get it from the ASUS website at www .asus.com ⢠Visit the ASUS website at www .asus.com for the latest QVL. V endor Part No. Size SS/ DS Chip Brand Chip No. Timing V oltage DIMM socket support (Optional) A* B* C* Crucial CT12864 BA1067.8FF 1024MB SS Micron 9GF22D9KPT 7 - ⢠⢠⢠Crucial CT25664 BA1067.16FF 2048MB DS Micron 9HF22D9KPT 7 - ⢠⢠⢠ELPIDA EBJ10UE8E DF0-AE-F 1024MB SS ELPIDA J1108EDSE-DJ-F - 1.35V (low voltage) ⢠⢠⢠ELPIDA EBJ51UD8 BAF A-AC-E 512MB SS Elpida J5308BASE-AC-E - - ⢠⢠⢠ELPIDA EBJ51UD8 BAF A-AE-E 512MB SS Elpida J5308BASE-AC-E - - ⢠⢠⢠ELPIDA EBJ11UD8 BAF A-AE-E 1024MB DS Elpida J5308BASE-AC-E - - ⢠⢠⢠ELPIDA EBJ21UE8 EDF0-AE-F 2048MB DS ELPIDA J1108EDSE-DJ-F - 1.35V (low voltage) ⢠⢠⢠KINGSTON KVR1066 D3N7/1G 1024MB SS Kingston D1288JEKAPGA7U 7 1.5V ⢠⢠⢠KINGSTON KVR1066 D3N7/2G 2048MB DS Kingston D1288JEKAPGA7U 7 1.5V ⢠⢠⢠Micron MT8JTF12864 AZ-1G1F1 1024MB SS Micron 9GF22D9KPT 7 - ⢠⢠⢠Micron MT16JTF25664 AZ-1G1F1 2048MB DS Micron 9HF22D9KPT 7 - ⢠⢠⢠SAMSUNG M378B2873 EH1-CF8 1024MB SS Samsung SEC 901 HCF8 K4B1G0846E - - ⢠⢠⢠SAMSUNG M378B5273 BH1-CF8 4096MB DS SAMSUNG 846 K4B2G0846B- HCF8 - - ⢠⢠Elixir M2Y2G64CB8 HC5N-BE 2048MB DS Elixir N2CB1G80CN-BE - - ⢠⢠Elixir M2Y2G64CB HA9N-BE 2048MB DS - - 7-7-7-20 - ⢠⢠⢠Elixir M2Y2G64CB HC9N-BE 2048MB DS Elixir - - - ⢠⢠⢠Kingtiger 2GB DIMM PC3-8500 2048MB DS Hynix H5TQ1G83AFP G7C - - ⢠⢠DDR3-1066 MHz capability for Clarkdale CPU
ASUS P7H55-M/USB3 1-22 1.7.4 Removing a DIMM Follow these steps to remove a DIMM. 2. Remove the DIMM from the socket. 1.7.3 Installing a DIMM 3. Firmly insert the DIMM into the socket until the retaining clip snaps back in place and the DIMM is properly seated. A DIMM is keyed with a notch so that it îts in only one direction. DO NOT force a DIMM into a socket in the wrong direction to avoid damaging the DIMM. T o install a DIMM 1. Unlock a DIMM socket by pressing the retaining clip outward. 2. Align a DIMM on the socket such that the notch on the DIMM matches the DIMM slot key on the socket. Support the DIMM lightly with your îngers when pressing the retaining clip. The DIMM might get damaged when it îips out with extra force. Ensure to unplug the power supply before adding or removing DIMMs or other system components. Failure to do so may cause severe damage to both the motherboard and the components. 1. Press the retaining clip outward to unlock the DIMM. 1 2 Unlocked retaining clip DIMM notch 2 1 Locked Retaining Clip 3 DIMM slot key
1-23 Chapter 1: Product introduction 1.8 Expansion slots In the future, you may need to install expansion cards. The following sub-sections describe the slots and the expansion cards that they support. Unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury and damage motherboard components. 1.8.1 Installing an expansion card T o install an expansion card: 1. Before installing the expansion card, read the documentation that came with it and make the necessary hardware settings for the card. 2. Remove the system unit cover (if your motherboard is already installed in a chassis). 3. Remove the bracket opposite the slot that you intend to use. Keep the screw for later use. 4. Align the card connector with the slot and press îrmly until the card is completely seated on the slot. 5. Secure the card to the chassis with the screw you removed earlier . 6. Replace the system cover . 1.8.2 Conîguring an expansion card After installing the expansion card, conîgure it by adjusting the software settings. 1. T urn on the system and change the necessary BIOS settings, if any . See Chapter 2 for information on BIOS setup. 2. Assign an IRQ to the card. 3. Install the software drivers for the expansion card. When using PCI cards on shared slots, ensure that the drivers support âShare IRQâ or that the cards do not need IRQ assignments. Otherwise, conîicts will arise between the two PCI groups, making the system unstable and the card inoperable. 1.8.3 PCI slot The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI speciîcations. 1.8.4 PCI Express x1 slots This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that comply with the PCI Express speciîcations. 1.8.5 PCI Express x16 slot This motherboard has a PCI Express 2.0 x16 slot that supports PCI Express x16 2.0 graphic cards complying with the PCI Express speciîcations.
ASUS P7H55-M/USB3 1-24 1.9 Jumpers 1. Clear RTC RAM (3-pin CLRTC) This jumper allows you to clear the Real T ime Clock (RTC) RAM in CMOS. Y ou can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords. Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default position. Removing the cap will cause system boot failure! ⢠If the steps above do not help, remove the onboard battery and move the jumper again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery . ⢠Y ou do not need to clear the RTC when the system hangs due to overclocking. For system failure due to overclocking, use the CPU Parameter Recall (C.P .R.) feature. Shut down and reboot the system, then the BIOS automatically resets parameter settings to default values. ⢠Due to the chipset limitation, AC power off is required before you use the C.P .R. function. Y ou must turn off and on the power supply or unplug and plug the power cord before rebooting the system. T o erase the RTC RAM: 1. T urn OFF the computer and unplug the power cord. 2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3 for about 5-10 seconds, then move the cap back to pins 1-2. 3. Plug the power cord and turn ON the computer . 4. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data. P 7 H 5 5 - M / US B 3 P7H55-M/USB3 Clear RTC RAM 1 2 2 3 Normal (Default) Clear RTC CLRTC
1-25 Chapter 1: Product introduction 1.10 Connectors 1.10.1 Rear panel connectors 1. PS/2 Keyboard/Mouse Combo port (purple). This port is for a PS/2 keyboard or PS/2 mouse. 2. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub. Refer to the table below for the LAN port LED indications. LAN port LED indications Activity Link LED Speed LED Status Description Status Description OFF No link OFF 10 Mbps connection ORANGE 100 Mbps connection BLINKING Data activity GREEN 1 Gbps connection LAN port Speed LED Activity Link LED 3. Line In port (light blue). This port connects to the tape, CD, DVD player , or other audio sources. 4. Line Out port (lime). This port connects to a headphone or a speaker . In the 4, 6, and 8-channel conîgurations, the function of this port becomes Front Speaker Out. 5. Microphone port (pink). This port connects to a microphone. Refer to the audio conîguration table below for the function of the audio ports in a 2, 4, 6, or 8-channel conîguration. Audio 2, 4, 6, or 8-channel conîguration Port Headset 2-channel 4-channel 6-channel 8-channel Light Blue (Rear panel) Line In Rear Speaker Out Rear Speaker Out Rear Speaker Out Lime (Rear panel) Line Out Front Speaker Out Front Speaker Out Front Speaker Out Pink (Rear panel) Mic In Mic In Bass/Center Bass/Center Lime (Front panel) â â â Side Speaker Out T o conîgure an 8-channel audio output: Use a chassis with HD audio module in the front panel to support an 8-channel audio output. 3 4 5 2 6 1 1 1 10 7 9 8
ASUS P7H55-M/USB3 1-26 6. USB 2.0 ports. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices. 7. USB 2.0/ USB 3.0 ports. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 / USB 3.0 devices. 8. VGA port. This 15-pin port is for a VGA monitor or other VGA-compatible devices. 9. HDMI port. This port is for a High-Deînition Multimedia Interface (HDMI) connector , and is HDCP compliant allowing playback of HD DVD, Blu-ray , and other protected content. 10. Optical S/PDIF Out port. This port connects an external audio output device via an optical S/PDIF cable. 1 1. USB 2.0 ports. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices. 1.10.2 Internal connectors 1. Front panel audio connector (10-1 pin AAFP) This connector is for a chassis-mounted front panel audio I/O module that supports either HD Audio or legacy AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector . ⢠We recommend that you connect a high-deînition front panel audio module to this connector to avail of the motherboardâs high-deînition audio capability . ⢠If you want to connect a high-deînition front panel audio module to this connector , set the Front Panel T ype item in the BIOS setup to [HD Audio] . If you want to connect an AC'97 front panel audio module to this connector , set the item to [AC97]. By default, this connector is set to [HD Audio] . See section 2.5.3 Onboard Devices Conîguration for details. P 7 H 5 5 - M / US B 3 P7H55-M/USB3 Analog front panel connector AAFP PIN 1 GND PRESENCE# SENSE1_RETUR SENSE2_RETUR PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L HD-audio-compliant pin definition PIN 1 AGND NC NC NC MIC2 MICPWR Line out_R NC Line out_L Legacy ACâ97 compliant definition
1-27 Chapter 1: Product introduction 2. LPT connector (26-1 pin LPT) The LPT (Line Printing T erminal) connector supports devices such as a printer . LPT is standardized as IEEE 1284, which is the parallel port interface on IBM PC-compatible computers. P 7 H 5 5 - M / US B 3 P7H55-M/USB3 Parallel port connector LPT PIN 1 STB# PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 ACK# BUSY PE SLCT AFD ERR# INIT# SLIN# GND GND GND GND GND GND GND GND ⢠For a fully conîgured system, we recommend that you use a power supply unit (PSU) that complies with A TX 12 V Speciîcation 2.0 (or later version) and provides a minimum power of 400 W . ⢠DO NOT forget to connect the 4-pin / 8-pin A TX 12V power plug. Otherwise, the system will not boot up. ⢠We recommend that you use a PSU with higher power output when conîguring a system with more power-consuming devices. The system may become unstable or may not boot up if the power is inadequate. ⢠If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus. com/PowerSupplyCalculator/PSCalculator .aspx?SLanguage=en-us for details. 3. A TX power connectors (24-pin EA TXPWR, 8-pin A TX12V) These connectors are for A TX power supply plugs. The power supply plugs are designed to ît these connectors in only one orientation. Find the proper orientation and push down îrmly until the connectors completely ît. P 7 H 5 5 - M / US B 3 P7H55-M/USB3 A TX power connectors EATXPWR PIN 1 GND 5 Volts 5 Volts 5 Volts -5 Volts GND GND GND PSON# GND -12 Volts 3 Volts 3 Volts 12 Volts 12 Volts 5V Standby Power OK GND 5 Volts GND 5 Volts GND 3 Volts 3 Volts EATX12V PIN 1 12V DC 12V DC 12V DC 12V DC GND GND GND GND
ASUS P7H55-M/USB3 1-28 4. Serial port connector (10-1 pin COM1) This connector is for a serial (COM) port. Connect the serial port module cable to this connector , then install the module to a slot opening at the back of the system chassis. The COM module is purchased separately . P 7 H 5 5 - M / US B 3 P7H55-M/USB3 Serial port (COM1) connector PIN 1 COM1 Do not forget to connect the fan cables to the fan connectors. Insufîcient air îow inside the system may damage the motherboard components. These are not jumpers! Do not place jumper caps on the fan connectors! 5. CPU and chassis fan connectors (4-pin CPU_F AN, 3-pin CHA_F AN1) Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector . ⢠Only the 4-pin CPU fan supports the ASUS Q-FAN feature. ⢠The CPU_F AN connector supports a CPU fan of maximum 2A (24 W) fan power . P 7 H 5 5 - M / US B 3 P7H55-M/USB3 fan connectors GND 12V Rotation CHA_F AN CPU_F AN CPU FAN PWM CPU FAN IN CPU FAN PWR GND
1-29 Chapter 1: Product introduction 6. Digital audio co nne cto r (4-1 pin SPDIF_OUT) This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. Connect the S/PDIF Out module cable to this connector , then install the module to a slot opening at the back of the system chassis. The S/PDIF module is purchased separately . SPDIF_OUT 5V SPDIFOUT GND P 7 H 5 5 - M / US B 3 P7H55-M/USB3 Digital audio connector 7. Serial A T A connectors (7-pin SA T A1-6) These connectors are for the Serial A T A signal cables for Serial A T A 3Gb/s hard disk and optical disk drives. The Serial A T A 3Gb/s is backward compatible with Serial A T A 1.5Gb/s speciîcation. The data transfer rate of the Serial A T A 3Gb/s is faster than the standard parallel A T A with 133 MB/s (Ultra DMA133). Install the Windows ® XP Service Pack 2 or later version before using Serial A T A. SA TA1 GND RSATA_TXP1 RSATA_TXN1 GND RSATA_RXP1 RSATA_RXN1 GND SA TA2 GND RSATA_TXP2 RSATA_TXN2 GND RSATA_RXP2 RSATA_RXN2 GND SA TA3 GND RSATA_RXN3 RSATA_RXP3 GND RSATA_TXN3 RSATA_TXP3 GND SA TA4 GND RSATA_RXN4 RSATA_RXP4 GND RSATA_TXN4 RSATA_TXP4 GND SA TA5 GND RSATA_RXN5 RSATA_RXP5 GND RSATA_TXN5 RSATA_TXP5 GND SA TA6 GND RSATA_RXN6 RSATA_RXP6 GND RSATA_TXN6 RSATA_TXP6 GND GND RSATA_RXN6G_1 RSATA_RXP6G_1 GND RSATA_TXN6G_1 RSATA_TXP6G_1 GND SA TA_6G_2 SAT A_6G_1 GND RSATA_RXN6G_2 RSATA_RXP6G_2 GND RSATA_TXN6G_2 RSATA_TXP6G_2 GND P 7 H 5 5- M / US B 3 P7H55-M/USB3 SA T A connectors
ASUS P7H55-M/USB3 1-30 8. USB connectors (10-1 pin USB78, USB910, USB1 1 12) These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 speciîcation that supports up to 480 Mbps connection speed. Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard! The USB module cable is purchased separately . P 7 H 5 5 - M /U S B 3 P7H55-M/USB3 USB2.0 connectors USB 5V USB_P12- USB_P12 GND NC USB 5V USB_P11- USB_P11 GND USB1 1 12 PIN 1 USB 5V USB_P10- USB_P10 GND NC USB 5V USB_P9- USB_P9 GND USB910 PIN 1 USB 5V USB_P8- USB_P8 GND NC USB 5V USB_P7- USB_P7 GND USB78 PIN 1
1-31 Chapter 1: Product introduction 9. System panel connector (20-8 pin P ANEL) This connector supports several chassis-mounted functions. ⢠System power LED (2-pin PLED) This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector . The system power LED lights up when you turn on the system power , and blinks when the system is in sleep mode. ⢠Hard disk drive activity LED (2-pin IDE_LED) This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable to this connector . The IDE LED lights up or îashes when data is read from or written to the HDD. ⢠System warning speaker (4-pin SPEAKER) This 4-pin connector is for the chassis-mounted system warning speaker . The speaker allows you to hear system beeps and warnings. ⢠A TX power button/soft-off button (2-pin PWRSW) This 2-pin connector is for the system power button. ⢠Reset button (2-pin RESET) This 2-pin connector is for the chassis-mounted reset button for system reboot without turning off the system power . PIN 1 * Requires an ATX power supply PLED SPEAKER PLED PLED- 5V Ground Ground Speaker IDE_LED IDE_LED- PWR Ground Reset Ground P ANEL IDE_LED PWRSW RESET P 7 H 5 5 - M / US B 3 P7H55-M/USB3 System panel connector
ASUS P7H55-M/USB3 1-32 1.1 1 Software support 1.1 1.1 Installing an operating system This motherboard supports Windows ® XP / 64-bit XP / Vista / 64-bit Vista / 7 / 64-bit 7 Operating Systems (OS). Always install the latest OS version and corresponding updates to maximize the features of your hardware. ⢠Motherboard settings and hardware options vary . Refer to your OS documentation for detailed information. ⢠Ensure that you install Windows ® XP Service Pack 3 or later versions / Windows ® Vista Service Pack 1 or later versions before installing the drivers for better compatibility and system stability . 1.1 1.2 Support DVD information The Support DVD that comes with the motherboard package contains the drivers, software applications, and utilities that you can install to avail all motherboard features. If Autorun is NOT enabled in your computer , browse the contents of the Support DVD to locate the île ASSETUP .EXE from the BIN folder . Double-click the ASSETUP .EXE to run the DVD. The following screen is for reference only . The contents of the Support DVD are subject to change at any time without notice. Visit the ASUS website at www .asus.com for updates. T o run the Support DVD Place the Support DVD to the optical drive. If Autorun is enabled in your computer , the DVD automatically displays the Specials screen which contains the unique feature of ASUS motherboard. Click Drivers, Utilities, Make Disk, Manual, and Contact tabs to display their respective menus. Click an item to install Click an icon to display Support DVD/ motherboard information
1-33 Chapter 1: Product introduction
Chapter 2: BIOS information 2-1 Chapter 2 BIOS information Save a copy of the original motherboard BIOS île to a USB îash disk in case you need to restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update utility . ⢠ASUS Update requires an Internet connection either through a network or an Internet Service Provider (ISP). ⢠This utility is available in the support DVD that comes with the motherboard package. Updating the BIOS T o update the BIOS: 1. From the Windows ® desktop, click Start > Programs > ASUS > ASUSUpdate > ASUSUpdate to launch the ASUS Update utility . 2. From the dropdown list, select any of the updating process: Updating from the Internet a. Select Update BIOS from the Internet, then click Next. b. Select the ASUS FTP site nearest you to avoid network trafîc, or click Auto Select then click Next. c. From the FTP site, select the BIOS version that you wish to download then click Next. 2.1.1 ASUS Update utility The ASUS Update is a utility that allows you to manage, save, and update the motherboard BIOS in Windows ® environment. Installing ASUS Update T o install ASUS Update: 1. Place the support DVD in the optical drive. The Drivers menu appears. 2. Click the Utilities tab, then click ASUS Update . 3. Follow the onscreen instructions to complete the installation. Quit all Windows ® applications before you update the BIOS using this utility . 2.1 Managing and updating your BIOS
2-2 ASUS P7H55-M/USB3 2.1.2 ASUS EZ Flash 2 The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based utility . Before you start using this utility , download the latest BIOS île from the ASUS website at www .asus.com. T o update the BIOS using EZ Flash 2: 1. Insert the USB îash disk that contains the latest BIOS île to the USB port, then launch EZ Flash 2 in any of these two ways: ⢠Press <Alt> <F2> during POST . ⢠Enter the BIOS setup program. Go to the T ools menu to select EZ Flash 2 and press <Enter> to enable it. Press <T ab> to switch between drives until the correct BIOS île is found. 2. When the correct BIOS île is found, EZ Flash 2 performs the BIOS update process and automatically reboots the system when done. The ASUS Update utility is capable of updating itself through the Internet. Always update the utility to avail all its features. Updating from a BIOS file a. Select Update BIOS from a île, then click Next. b. Locate the BIOS île from the Open window , then click Open. 3. Follow the onscreen instructions to complete the updating process. ⢠This function supports USB îash disks with F A T 32/16 format and single partition only . ⢠DO NOT shut down or reset the system while updating the BIOS to prevent system boot failure! A: PATH: A:\
Chapter 2: BIOS information 2-3 2.1.3 ASUS CrashFree BIOS The ASUS CrashFree BIOS is an auto recovery tool that allows you to restore the BIOS île when it fails or gets corrupted during the updating process. Y ou can restore a corrupted BIOS île using the motherboard support DVD or a removable device that contains the updated BIOS île. ⢠Before using this utility , rename the BIOS île in the removable device into P7H55MUSB3.ROM . ⢠The BIOS île in the support DVD may not be the latest version. Download the latest BIOS île from the ASUS website at www.asus.com. ⢠The removable devices that ASUS CrashFree BIOS support vary with motherboard models. For motherboards without the îoppy connector , prepare a USB îash disk before using this utility . Recovering the BIOS T o recover the BIOS: 1. T urn on the system. 2. Insert the support DVD to the optical drive or the removable device that contains the BIOS île to the USB port or to the îoppy disk drive, if supported. 3. The utility automatically checks the devices for the BIOS île. When found, the utility reads the BIOS île and starts îashing the corrupted BIOS île. 4. T urn off the system after the utility completes the updating process and turn on again. DO NOT shut down or reset the system while updating the BIOS! Doing so can cause system boot failure! Ensure to load the BIOS default settings to ensure system compatibility and stability . Select the Load Setup Defaults item under the Exit menu. Refer to section 2.9 Exit menu for details. 2.1.4 ASUS BIOS Updater The ASUS BIOS Updater allows you to update BIOS in DOS environment. This utility also allows you to copy the current BIOS île that you can use as a backup when the BIOS fails or gets corrupted during the updating process. The succeeding utility screens are for reference only . The actual utility screen displays may not be same as shown. Before updating BIOS 1. Prepare the motherboard support DVD and a USB îash drive in F A T32/16 format and single partition. 2. Download the latest BIOS île and BIOS Updater from the ASUS website at http://support.asus.com and save them on the USB îash drive.
2-4 ASUS P7H55-M/USB3 ⢠NTFS is not supported under DOS environment. Do not save the BIOS île and BIOS Updater to a hard disk drive or USB îash drive in NTFS format. ⢠Do not save the BIOS île to a îoppy disk due to low disk capacity . 3. T urn off the computer and disconnect all SA T A hard disk drives (optional). Booting the system in DOS environment 1. Insert the USB îash drive with the latest BIOS île and BIOS Updater to the USB port. 2. Boot your computer . When the ASUS Logo appears, press <F8> to show the BIOS Boot Device Select Menu . Insert the support DVD into the optical drive and select the optical drive as the boot device. 3. When the Make Disk menu appears, select the FreeDOS command prompt item by pressing the item number . 4. At the FreeDOS prompt, type d: and press <Enter> to switch the disk from Drive C (optical drive) to Drive D (USB îash drive). 2. The BIOS Updater backup screen appears indicating the BIOS backup process. When BIOS backup is done, press any key to return to the DOS prompt. Backing up the current BIOS T o backup the current BIOS île using the BIOS Updater Ensure that the USB îash drive is not write-protected and has at least 1024KB free space to save the île. 1. At the FreeDOS prompt, type bupdater /o[î¿lename] and press <Enter>. The [îlename] is any user-assigned îlename with no more than eight alphanumeric characters for the îlename and three alphanumeric characters for the extension.
Chapter 2: BIOS information 2-5 Updating the BIOS île T o update the BIOS île using BIOS Updater 1. At the FreeDOS prompt, type bupdater /pc /g and press <Enter>. Update ROM 2. The BIOS Updater screen appears as below . 3. Press <T ab> to switch between screen îelds and use the <Up/Down/Home/End> keys to select the BIOS île and press <Enter>. BIOS Updater checks the selected BIOS île and prompts you to conîrm BIOS update. Update ROM Saving BIOS:
2-6 ASUS P7H55-M/USB3 Using the power button, reset button, or the <Ctrl> <Alt> <Del> keys to force reset from a running operating system can cause damage to your data or system. We recommend to always shut down the system properly from the operating system. ⢠The default BIOS settings for this motherboard apply for most conditions to ensure optimum performance. If the system becomes unstable after changing any BIOS settings, load the default settings to ensure system compatibility and stability . Select the Load Setups Default item under the Exit Menu. See section 2.9 Exit Menu . ⢠The BIOS setup screens shown in this section are for reference purposes only , and may not exactly match what you see on your screen. ⢠Visit the ASUS website at www .asus.com to download the latest BIOS île for this motherboard. 4. Select Y es and press <Enter>. When BIOS update is done, press <ESC> to exit BIOS Updater . Restart your computer . DO NOT shut down or reset the system while updating the BIOS to prevent system boot failure! ⢠For BIOS Updater version 1.04 or later , the utility automatically exits to the DOS prompt after updating BIOS. ⢠Ensure to load the BIOS default settings to ensure system compatibility and stability . Select the Load Setup Defaults item under the Exit menu. Refer to section 2.9 Exit menu for details. ⢠Ensure to connect all SA T A hard disk drives after updating the BIOS île if you have disconnected them. 2.2 BIOS setup program Use the BIOS Setup program to update the BIOS or conîgure its parameters. The BIOS screens include navigation keys and brief online help to guide you in using the BIOS Setup program. Entering BIOS Setup at startup T o enter BIOS Setup at startup: ⢠Press <Delete> during the Power-On Self T est (POST). If you do not press <Delete>, POST continues with its routines. Entering BIOS Setup after POST T o enter BIOS Setup after POST : ⢠Press <Ctrl> <Alt> <Del> simultaneously . ⢠Press the reset button on the system chassis. ⢠Press the power button to turn the system off then back on. Do this option only if you failed to enter BIOS Setup using the îrst two options.
Chapter 2: BIOS information 2-7 2.2.2 Menu bar The menu bar on top of the screen has the following main items: Main For changing the basic system conîguration. Ai T weaker For changing system performance settings Advanced For changing the advanced system settings. Power For changing the advanced power management (APM) conîguration. Boot For changing the system boot conîguration. T ools For conîguring options for special functions. Exit For selecting the exit options and loading default settings. T o select an item on the menu bar , press the right or left arrow key on the keyboard until the desired item is highlighted. 2.2.1 BIOS menu screen 2.2.3 Navigation keys At the bottom right corner of a menu screen are the navigation keys for that particular menu. Use the navigation keys to select items in the menu and change the settings. Some of the navigation keys differ from one screen to another . 2.2.4 Menu items The highlighted item on the menu bar displays the speciîc items for that menu. For example, selecting Main shows the Main menu items. The other items (Ai T weaker, Advanced, Power , Boot, T ools, and Exit) on the menu bar have their respective menu items. v02.61 (C)Copyright 1985-2010, American Megatrends, Inc.
2-8 ASUS P7H55-M/USB3 2.2.5 Submenu items A solid triangle before each item on any menu screen means that the item has a submenu. T o display the submenu, select the item and press <Enter>. 2.2.6 Conîguration îelds These îelds show the values for the menu items. If an item is user- conîgurable, you can change the value of the îeld opposite the item. Y ou cannot select an item that is not user- conîgurable.A conîgurable îeld is enclosed in brackets, and is highlighted when selected. T o change the value of a îeld, select it then press <Enter> to display a list of options. Refer to 2.2.7 Pop-up window . 2.2.7 Pop-up window Select a menu item then press <Enter> to display a pop-up window with the conîguration options for that item. 2.2.8 Scroll bar A scroll bar appears on the right side of a menu screen when there are items that do not ît on the screen. Press the <Up> / <Down> arrow keys or <Page Up> /<Page Down> keys to display the other items on the screen. 2.2.9 General help At the top right corner of the menu screen is a brief description of the selected item. 2.3 Main menu When you enter the BIOS Setup program, the Main menu screen appears, giving you an overview of the basic system information. Select Screen Select Item - Change Field Tab Select Field F1 General Help F10 Save and Exit ESC Exit v02.61 (C)Copyright 1985-2010, American, American Megatrends, Inc. P7H55-M/USB3 BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit Suspend Mode [Auto] ACPI 2.0 Support [Enabled] ACPI APIC support [Enabled] Anti-Surge Support [Enabled] APM Conî¿guration Hardware Monitor If enabled, system will have uvp or ovp protection. Options Disabled Enabled Pop-up window Scroll bar Version 0306 v02.61 (C)Copyright 1985-2009, American Megatrends, Inc. Select Screen Select Item - Change Field Tab Select Field F1 General Help F10 Save and Exit ESC Exit P7H55-M/USB3 BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit System Time [ 22 :40:51] System Date [Fri 01/18/2002] Language [English] SATA1 :[Not Detected] SATA2 :[Not Detected] SATA3 :[Not Detected] SATA4 :[Not Detected] SATA5 :[Not Detected] SATA6 :[Not Detected] Storage Conî¿guration 3rd Party Storage Conî¿guration System Information Use [ENTER], [TAB] or [SHIFT-TAB] to select a î¿eld. Use [ ] or [-] to conî¿gure system time. v02.61 (C)Copyright 1985-2010, American Megatrends, Inc. Version 0306
Chapter 2: BIOS information 2-9 LBA/Large Mode [Auto] Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device supports this mode, and if the device was not previously formatted with LBA mode disabled. Conîguration options: [Disabled] [Auto] Block (Multi-Sector T ransfer) M [Auto] Enables or disables data multi-sectors transfers. When set to [Auto], the data transfer from and to the device occurs multiple sectors at a time if the device supports multi-sector transfer feature. When set to [Disabled], the data transfer from and to the device occurs one sector at a time. Conîguration options: [Disabled] [Auto] PIO Mode [Auto] Selects the PIO mode. Conîguration options: [Auto] [0] [1] [2] [3] [4] DMA Mode [Auto] Selects the DMA mode. Conîguration options: [Auto] SMART Monitoring [Auto] Sets the Smart Monitoring, Analysis, and Reporting T echnology . Conîguration options: [Auto] [Disabled] [Enabled] 32Bit Data T ransfer [Enabled] Enables or disables 32-bit data transfer . Conîguration options: [Disabled] [Enabled] This item only appears in the SA T A1~4 menus. 2.3.1 System Time [xx:xx:xx] Allows you to set the system time. 2.3.2 System Date [Day xx/xx/xxxx] Allows you to set the system date. 2.3.3 Language [English] Allows you to choose the BIOS language version from the options. Conîguration options: [Chinese (T rad.)] [Chinese (Simp.)] [Japanese] [French] [Deutsch] [English] 2.3.4 SA T A1~6 While entering Setup, the BIOS automatically detects the presence of SA T A devices. There is a separate submenu for each SA T A device. Select a device item then press <Enter> to display the SA T A device information. The BIOS automatically detects the values opposite the dimmed items (Device, V endor , Size, LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART monitoring). These values are not user-conîgurable. These items show Not Detected if no SA T A device is installed in the system. T ype [Auto] Selects the type of SA T A drive. Setting to [Auto] allows automatic selection of the appropriate SA T A device type. Select [CDROM] if you are speciîcally conîguring a CD-ROM drive. Select [ARMD] (A T API Removable Media Device) if your device is either a ZIP , LS-120, or MO drive. Conîguration options: [Not Installed] [Auto] [CDROM] [ARMD]
2-10 ASUS P7H55-M/USB3 2.3.6 3rd Party Storage Conîguration The 3rd Party Storage Conîguration menu automatically detects third party SA T A storage devices and allows you to conîgure these storage devices. Select an item then press <Enter> to display the sub-menu. Marvel Controller [IDE Mode] Allows you to select the controller âs operator mode. Conîguration options: [Disabled] [IDE Mode] [AHCI Mode] SA T A 6G-1/SA T A 6G-2 [Not Detected] While entering Setup, the BIOS automatically detects the presence of SA T A devices. This displays the status of the detected SA T A devices. LBA/Large Mode [Auto] Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device supports this mode, and if the device was not previously formatted with LBA mode disabled. Conîguration options: [Disabled] [Auto] Block (Multi-Sector T ransfer) M [Auto] Enables or disables data multi-sectors transfers. When set to [Auto], the data transfer from and to the device occurs multiple sectors at a time if the device supports multi-sector transfer feature. When set to [Disabled], the data transfer from and to the device occurs one sector at a time. Conîguration options: [Disabled] [Auto] 2.3.5 Storage Conîguration The Storage Conîguration menu allows you to conîgure your storage device(s). Select an item then press <Enter> to display the sub-menu. SA T A Conîguration [Enhanced] Conîguration options: [Disabled] [Compatible] [Enhanced] Configure SA T A as [IDE] Sets the conîguration for the Serial A T A connectors supported by the Southbridge chip. Conîguration options: [IDE] [AHCI] ⢠If you want to use the Serial A T A hard disk drives as Parallel A T A physical storage devices, keep the default setting [IDE]. ⢠If you want the Serial A T A hard disk drives to use the Advanced Host Controller Interface (AHCI), set this item to [AHCI]. The AHCI allows the onboard storage driver to enable advanced Serial A T A features that increases storage performance on random workloads by allowing the drive to internally optimize the order of commands. Hard Disk Write Protect [Disabled] Disables or enables device write protection. This will be ef fective only if the device is accessed through BIOS. Conîguration option: [Disabled] [Enabled] IDE Detect Time Out (Sec) [35] Selects the time out value for detecting A T A/A T API devices. Conîguration options: [0] [5] [10] [15] [20] [25] [30] [35]
Chapter 2: BIOS information 2-1 1 PIO Mode [Auto] Selects the PIO mode. Conîguration options: [Auto] [0] [1] [2] [3] [4] DMA Mode [Auto] Selects the DMA mode. Conîguration options: [Auto] SMART Monitoring [Auto] Sets the Smart Monitoring, Analysis, and Reporting T echnology . Conîguration options: [Auto] [Disabled] [Enabled] 32Bit Data T ransfer [Enabled] Enables or disables 32-bit data transfer . Conîguration options: [Disabled] [Enabled] 2.3.7 System Information This menu gives you an overview of the general system speciîcations. The BIOS automatically detects the items in this menu. BIOS Information Displays the auto-detected BIOS information Processor Displays the auto-detected CPU speciîcation System Memory Displays the auto-detected system memory
2-12 ASUS P7H55-M/USB3 2.4 Ai T weaker menu The Ai T weaker menu items allow you to conîgure overclocking-related items. Be cautious when changing the settings of the Ai T weaker menu items. Incorrect îeld values can cause the system to malfunction. The conîguration options for this chapter vary depending on the CPU and DIMM model you installed on the motherboard. 2.4.1 Ai Overclock T uner [Auto] Allows selection of CPU overclocking options to achieve desired CPU internal frequency . Select either one of the preset overclocking conîguration options: Manual Allows you to individually set overclocking parameters. Auto Loads the optimal settings for the system. D.O.C.P Overclocks DRAM frequency by adjusting BCLK frequency . X.M.P . If you install memory modules supporting the eXtreme Memory Proîle (X.M.P .) T echnology , choose this item to set the proîles supported by your memory modules for optimizing the system performance. Scroll down to display the following items: P7H55-M/USB3 BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit [D.O.C.P.] It's designed to overclock DRAM frequency by adjusting BCLK frequency. [X.M.P.] When X.M.P. is enabled BLCK frequency, CPU ration and memory parameters will be auto optimized. ââ Select Screen ââ Select Item Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit Conî¿gure System Performance Settings Ai Overclock Tuner [Auto] CPU Ratio Setting [20.0] Intel(R) SpeedStep(TM) Tech [Enabled] Intel(R) TurboMode Tech [Enabled] Xtreme Phase Full Power Mode [Auto] DRAM Frequency [Auto] QPI Frenquency [Auto] OC Tuner Utility OC Tuner Limit Value [Turbo Proî¿le] DRAM Timing Control CPU Differential Amplitude [Auto] CPU Clock Skew [Auto] ******* Please key in numbers directly! ******* CPU Voltage Mode [Offset] v02.61 (C)Copyright 1985-2010, American Megatrends, Inc. Offset Voltage [Auto] IMC Voltage [Auto] DRAM Voltage [Auto] CPU PLL Voltage [Auto] PCH Voltage [Auto] DRAM DATA REF Voltage on CHA [Auto] DRAM DATA REF Voltage on CHB [Auto] Auto PSI [Enabled] ********************************************** Load-Line Calibration [Auto] PCIE Spread Spectrum [Disabled] PCI/PCIe CLK Status [Enabled] Version 0306 v02.61 (C)Copyright 1985-2010, American Megatrends, Inc.
Chapter 2: BIOS information 2-13 DRAM O.C. Profile [DDR3-1600MHz] This item appears only when you set the Ai Overclock T uner item to [D.O.C.P .] and allows you to select a DRAM O.C. proîle, which applies different settings to DRAM frequency , DRAM timing and DRAM voltage. Conîguration options: [DDR3-1600MHz] [DDR3-1800MHz] [DDR3-1866MHz] [DDR3-2000MHz] [DDR3-2133MHz] [DDR3-2200MHz] The conîguration options for the following sub-item vary depending on the DIMMs you install on the motherboard. T o obtain the best performance of the X.M.P . DIMM or 1600MHz DIMM, install only one DIMM on each memory channel. 2.4.2 CPU Ratio Setting [Auto] Allows you to adjust the ratio between CPU Core Clock and BCLK Frequency . Use the < > and <-> keys to adjust the value. The valid value ranges dif ferently according to your CPU model. 2.4.3 Intel(R) SpeedStep(TM) T ech [Enabled] When set to [Disabled], the CPU runs at its default speed. When set to [Enabled], the CPU speed is controlled by the operating system. Conîguration options: [Disabled] [Enabled] Intel(R) T urboMode T ech [Enabled] This item appears only when you set the Intel(R) SpeedStep(TM) T ech item to [Enabled]. T urbo mode allows processor cores to run faster than the marked frequency in speciîc condition. 2.4.4 Xtreme Phase Full Power Mode [Auto] [Auto] Automatic conîguration. [Enabled] Enables Full Power Mode to ensure the best CPU overclocking performance. eXtreme Memory Profile [Disabled] This item appears only when you set the Ai Overclock T uner item to [X.M.P .] DRAM Frequency (MHz) CPU Frequency (GHz) 2.66 2.8 2.93 1333 Auto Auto Auto 1600 D.O.C.P . Auto Auto Above 1600 D.O.C.P . D.O.C.P . D.O.C.P . ⢠When using DIMMs with a frequency higher than the Intel ® CPU spec, use this ASUS exclusive DRAM O.C. Proîle function to overclock the DRAM. ⢠Adjust BCLK frequency to obtain a better performance after applying the D.O.C.P . function.
2-14 ASUS P7H55-M/USB3 The following two items appear only when you set the Ai Overclock T uner item to [Manual], [D.O.C.P .] or [X.M.P .]. 2.4.5 BCLK Frequency [XXX] Allows you to adjust the Internal Base Clock (BCLK). Use the < > and <-> keys to adjust the value. Y ou can also type the desired value using the numeric keypad. The values range from 80 to 500. 2.4.6 PCIE Frequency [100] Allows you to set the PCI Express frequency . Use the < > and <-> keys to adjust the PCIE frequency . The values range from 100 to 200. 2.4.7 DRAM Frequency [Auto] Allows you to set the DDR3 operating frequency . Conîguration options: [Auto] [DDR3-800MHz] [DDR3-1066MHz] [DDR3-1333MHz] The DRAM Frequency conîguration options vary with the BCLK Frequency item settings. Selecting a very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting. 2.4.8 QPI Frequency [Auto] Allows you to set the QPI operating frequency . Conîguration options: [Auto] [4270MHz] [4800MHz] 2.4.9 OC T uner Utility OC T uner automatically overclocks the CPU and DRAM frequency and voltage. Press [Enter] to start auto-tuning. C-State will be disabled automatically in about îve minutes. 2.4.10 OC T uner Limit V alue Conîguration options: [T urbo Proîle] 2.4.1 1 DRAM Timing Control [Auto] The items in this menu allow you to set the DRAM timing control features. The conîguration options for some of the following items vary depending on the DIMMs you install on the motherboard. 1st Information: 9-9-9-24-4-53-9-7-20 The values vary depending on your settings of the following sub-items: DRAM CAS# Latency [Auto] Conîguration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] ~ [1 1 DRAM Clock] DRAM RAS# to CAS# Delay [Auto] Conîguration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] ~ [15 DRAM Clock]
Chapter 2: BIOS information 2-15 DRAM RAS# PRE T ime [Auto] Conîguration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] ~ [15 DRAM Clock] DRAM RAS# ACT T ime [Auto] Conîguration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] ~ [31 DRAM Clock] DRAM RAS# to RAS# Delay [Auto] Conîguration options: [Auto] [1 DRAM Clock] ~ [7 DRAM Clock] DRAM REF Cycle T ime [Auto] Conîguration options: [Auto] [48 DRAM Clock] [60 DRAM Clock] [72 DRAM Clock] [82 DRAM Clock] ~ [180 DRAM Clock] [190 DRAM Clock] [200 DRAM Clock] DRAM WRITE Recovery T ime [Auto] Conîguration options: [Auto] [1 DRAM Clock] ~ [18 DRAM Clock] DRAM READ to PRE T ime [Auto] Conîguration options: [Auto] [3 DRAM Clock] ~ [15 DRAM Clock] DRAM FOUR ACT WIN T ime [Auto] Conîguration options: [Auto] [1 DRAM Clock] ~ [63 DRAM Clock] DRAM Back-T o-Back CAS# Delay [Auto] Conîguration options: [Auto] [4 DRAM Clock] ~ [32 DRAM Clock] 2nd Information: 2N-0-47 The values vary depending on your settings of the following sub-items: DRAM T iming Mode [Auto] Conîguration options: [Auto] [1N] [2N] [3N] DRAM Round T rip Latency on CHA [Auto] [Auto] [Advance 15 Clock] ~ [Advance 1 Clock] [Normal] [Delay 1 Clock] ~ [Delay 15 Clock] DRAM Round T rip Latency on CHB [Auto] [Auto] [Advance 15 Clock] ~ [Advance 1 Clock] [Normal] [Delay 1 Clock] ~ [Delay 15 Clock] 3rd Information: 5-5-16-10-10-10-7-6-4-7-7-4 The values vary depending on your settings of the following sub-items: DRAM WRITE to READ Delay(DD) [Auto] Conîguration options: [Auto] [1 DRAM Clock] ~ [8 DRAM Clock] DRAM WRITE to READ Delay(DR) [Auto] Conîguration options: [Auto] [1 DRAM Clock] ~ [8 DRAM Clock] DRAM WRITE to READ Delay(SR) [Auto] Conîguration options: [Auto] [10 DRAM Clock] ~ [22 DRAM Clock] DRAM READ to WRITE Delay(DD) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [14 DRAM Clock] DRAM READ to WRITE Delay(DR) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [14 DRAM Clock] DRAM READ to WRITE Delay(SR) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [14 DRAM Clock]
2-16 ASUS P7H55-M/USB3 DRAM READ to READ Delay(DD) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [9 DRAM Clock] DRAM READ to READ Delay(DR) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [9 DRAM Clock] DRAM READ to READ Delay(SR) [Auto] Conîguration options: [Auto] [4 DRAM Clock] [6 DRAM Clock] DRAM WRITE to WRITE Delay(DD) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [9 DRAM Clock] DRAM WRITE to WRITE Delay(DR) [Auto] Conîguration options: [Auto] [2 DRAM Clock] ~ [9 DRAM Clock] DRAM WRITE to WRITE Delay(SR) [Auto] Conîguration options: [Auto] [4 DRAM Clock] [6 DRAM Clock] 2.4.12 CPU Differential Amplitude [Auto] Different AMP might enhance BCLK overclocking ability . Conîguration options: [Auto] [700mV] [800mV] [900mV] [1000mV] 2.4.13 CPU Clock Skew [Auto] Adjusting this item may help enhancing BCLK overclocking ability . Y ou may need to adjust the NB Clock Skew item at the same time. Conîguration options: [Auto] [Normal] [Delay 100ps] ~ [Delay 1500ps] Some of the following items are adjusted by typing the desired values using the numeric keypad and press the <Enter> key . Y ou can also use the < > and <-> keys to adjust the value. T o restore the default setting, type [auto] using the keyboard and press the <Enter> key . 2.4.14 CPU V oltage Mode [Offset] Allows you to set the CPU Vcore over voltage. Different sub-items appear according to the VCore Over V oltage item setting. Conîguration options: [Offset] [Manual] Offset V oltage [Auto] This item appears only when you set the CPU V oltage Mode item to [Offset] and allows you to set the Offset voltage. The values range from 0.00625V to 0.50000V with a 0.00625V interval. Fixed V oltage [Auto] This item appears only when you set the CPU V oltage Mode item to [Manual] and allows you to set a îxed CPU voltage. The values range from 0.85V to 1.60V with a 0.00625V interval. Refer to the CPU documentation before setting the CPU Vcore voltage. Setting a high VCore voltage may damage the CPU permanently , and setting a low VCore voltage may make the system unstable.
Chapter 2: BIOS information 2-17 2.4.15 IMC V oltage [Auto] Allows you to set the CPU Integrated Memory Controller voltage. The values range from 1.10V to 1.45V with a 0.00625V interval. 2.4.16 DRAM V oltage [Auto] Allows you to set the DRAM voltage. The values range from 1.500V to 2.205V . According to Intel CPU spec, DIMMs with voltage requirement over 1.65V may damage the CPU permanently . We recommend you install the DIMMs with the voltage requirement below 1.65V . 2.4.17 CPU PLL V oltage [Auto] Allows you to set the CPU PLL voltage. The values range from 1.80V to 1.85V with a 0.05V interval. 2.4.18 PCH V oltage [Auto] Allows you to set the Platform Controller Hub voltage. The values range from 1.05000V to 1.40000V with a 0.00625V interval. The system may need better cooling system to work stably under high voltage settings. 2.4.19 DRAM DA T A REF V oltage on CHA/B [Auto] Allows you to set the DRAM DA T A Reference Voltage on Channel A/B. The values range from 0.395x to 0.630x with a 0.005x interval. Different ratio might enhance DRAM overclocking ability . 2.4.20 Auto PSI [Enabled] Enables or disables the Auto PSI mode. Conîguration options: [Disabled] [Enabled] 2.4.21 Load-Line Calibration [Auto] [Auto] Automatic conîguration. [Disabled] Follow Intel speciîcations. [Enabled] Improve CPU VDroop directly . 2.4.22 PCIE Spread Spectrum [Auto] [Auto] Automatic conîguration. [Disabled] Enhances the PCIE overclocking ability . [Enabled] Sets to [Enabled] for EMI control. 2.4.23 PCI/PCIe CLK Status [Enabled] Allows you to enable or disable clock for PCI/PCI Express ports. Conîguration options: [Disabled] [Enabled]
2-18 ASUS P7H55-M/USB3 2.5.1 CPU Conîguration The items in this menu show the CPU-related information that the BIOS automatically detects. The items shown in this screen may be different due to the CPU you installed. Be cautious when changing the settings of the Advanced menu items. Incorrect îeld values can cause the system to malfunction. 2.5 Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices. CPU Ratio Setting [Auto] Allows you to adjust the ratio between CPU Core Clock and BCLK Frequency . Use the < > and <-> keys to adjust the value. The valid value ranges dif ferently according to your CPU model. C1E Support [Disabled] [Enabled] Enables the C1E support function. This item should be enabled in order to enable the Enhanced Halt Sate. [Disabled] Disables this function. Hardware Prefetcher [Enabled] [Enabled] Enables the Hardware Prefetcher function. This item should be enabled in order to enable the L2 cache (MLC) Streamer Prefetcher for tuning performance of the speciîc application. [Disabled] Disables this function. v02.61 (C)Copyright 1985-2010, American Megatrends, Inc. P7H55-M/USB3 BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit Conî¿gure CPU. ââ Se l e c t S c r e e n â â S e l e c t I t e m Enter Go to Sub Screen F 1 G e n e r a l H e l p F 1 0 Sa v e a n d E x i t ESC Exit CPU Conî¿guration Uncore Conî¿guration Onboard Devices Conî¿guration USB Conî¿guration PCIPnP Intel VT-d [Disabled] Version 0306
Chapter 2: BIOS information 2-19 Adjacent Cache Line Prefetcher [Enabled] [Enabled] Enables the Adjacent Cache Line Prefetcher function. This item should be enabled in order to enable the L2 cache (MLC) Spatial Prefetcher for tuning performance of the speciîc application. [Disabled] Disables this function. Max CPUID V alue Limit [Disabled] [Enabled] Allows legacy operating systems to boot even without support for CPUs with extended CPUID functions. [Disabled] Disables this function. Intel(R) Virtualization T ech [Enabled] [Enabled] Allows a hardware platform to run multiple operating systems separately and simultaneously , enabling one system to virtually function as several systems. [Disabled] Disables this function. CPU TM function [Enabled] [Enabled] Enables the overheated CPU to throttle its clock speed to cool down. [Disabled] Disables this function. Execute-Disable Bit Capability [Enabled] [Enabled] Enables the No-Execution Page Protection T echnology . [Disabled] Forces the XD feature îag to always return to zero (0). Active Processor Cores [All] [All] Activate all CPU cores in the processor package. [1] Activate only 1 CPU core in the processor package. [2] Activate 2 CPU cores in the processor package. A20M [Disabled] [Enabled] Legacy OSes and APs may need this function enabled. [Disabled] Disables this function. Intel(R) SpeedStep (TM) T ech [Enabled] [Enabled] The CPU speed is controlled by the operating system. [Disabled] The CPU runs at its default speed. Intel(R) T urboMode T ech [Enabled] This item appears only when you set the Intel(R) SpeedStep(TM) T ech item to [Enabled]. T urbo mode allows processor cores to run faster than the marked frequency in speciîc condition. Intel(R) C-ST A TE T ech [Disabled] [Enabled] Allows the CPU to save more power under idle mode. Enable this item only when you install a C-State T echnology-supported CPU. [Disabled] Disables this function.
2-20 ASUS P7H55-M/USB3 2.5.2 Uncore Conîguration The North Bridge Conîguration menu allows you to change the advanced chipset settings. Memory Remap Feature [Enabled] [Disabled] Do not allow remapping of memory . [Enabled] Allows for the segment of system memory that was previously overwritten by PCI devices to be remapped above the total physical memory . Initiate Graphic Adapter [PCIE/PCI] Allows you to select the graphics controller as the primary boot device. Conîguration options: [PCI/PCIE] [PCIE/PCI] 2.5.3 Onboard Devices Conîguration HDA Controller [Enabled] Enables or disables the High Deînition Audio Controller . Conîguration options: [Enabled] [Disabled] Front Panel T ype [HD Audio] Set the front panel audio connector (AAFP) mode. Conîguration options: [AC97] [HD Audio] Realtek LAN [Enabled] [Enabled] Enables the Realtek LAN controller . [Disabled] Disables the controller . LAN Boot ROM [Disabled] This item appears only when you set the previous item to [Enabled]. [Enabled] Enables the Realtek Gigabit LAN Boot ROM. [Disabled] Disables the LAN Boot ROM. Serial Port1 Address [3F8/IRQ4] Allows you to select the Serial Port1 base address. Conîguration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3] Parallel Port Address [378] Allows you to select the Parallel Port base addresses. Conîguration options: [Disabled] [378] [278] [3BC] Parallel Port Mode [Normal] Allows you to select the Parallel Port mode. Conîguration options: [Normal] [Bi-Directional] [EPP] [ECP] [ECP & EPP] ECP Mode DMA Channel [DMA3] Appears only when the Parallel Port Mode is set to [ECP] or [ECP & EPP]. This item allows you to set the Parallel Port ECP DMA. Conîguration options: [DMA0] [DMA1] [DMA3]
Chapter 2: BIOS information 2-21 The USB Devices Enabled item shows the auto-detected values. If no USB device is detected, the item shows None. USB Functions [Enabled] Enables or disables the USB Host Controllers. Conîguration options: [Enabled] [Disabled] The following items appear only when you set USB Support to [Enabled]. Legacy USB Support [Auto] [Disabled] Disables the function. [Enabled] Enables the support for USB devices on legacy operating systems (OS). [Auto] Allows the system to detect the presence of USB devices at startup. If detected, the USB controller legacy mode is enabled. If no USB device is detected, the legacy USB support is disabled. BIOS EHCI Hand-off [Enabled] [Disabled] Disables the function. [Enabled] Enables the support for operating systems without an EHCI hand-off feature. USB Mass Storage Device Conîguration USB Mass Storage Reset Delay [20 Sec] Allows you to set the maximum time that the BIOS waits for the USB storage device to initialize. Conîguration options: [10 sec] [20 sec] [30 sec] [40 sec] Emulation T ype [Auto] Allows you to set the emulation type. Conîguration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CDROM] 2.5.4 USB Conîguration The items in this menu allows you to change the USB-related features. Select an item then press <Enter> to display the conîguration options. EPP V ersion [1.9] Appears only when the Parallel Port Mode is set to [EPP] or [ECP & EPP]. Conîguration options: [1.9] [1.7] Parallel Port IRQ [IRQ7] Allows you to select parallel port IRQ. Conîguration options: [IRQ5] [IRQ7]
2-22 ASUS P7H55-M/USB3 2.6 Power menu The Power menu items allow you to change the settings for the Advanced Power Management (APM). Select an item then press <Enter> to display the conîguration options. 2.6.1 Suspend Mode [Auto] Allows you to select the Advanced Conîguration and Power Interface (ACPI) state to be used for system suspend. [S1 (POS) only] Sets the APCI suspend mode to S1/POS (Power On Suspend). [S3 only] Sets the APCI suspend mode to S3/STR (Suspend T o RAM). [Auto] The system automatically conîgures the ACPI suspend mode. 2.6.2 ACPI 2.0 Support [Enabled] [Disabled] When set to [Disabled], the system will not add additional tables as per ACPI 2.0 speciîcations. [Enabled] When set to [Enabled], the system adds additional tables as per ACPI 2.0 speciîcations. 2.5.5 PCIPnP The PCIPnP menu items allow you to change the advanced settings for PCI/PnP devices. Plug And Play O/S [No] When set to [No] , BIOS conîgures all the devices in the system. When set to [Y es] and if you install a Plug and Play operating system, the operating system conîgures the Plug and Play devices not required for boot. Conîguration options: [No] [Y es] 2.5.6 Intel VT -d [Disabled] Enables or disables the Intel Virtualization T echnology for Directed I/O. Conîguration options: [Enabled] [Disabled] P7H55-M/USB3 BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit Select the ACPI state used for System Suspend. ââ Select Screen ââ Select Item - Change Option F1 General Help F10 Save and Exit ESC Exit Suspend Mode [Auto] ACPI 2.0 Support [Enabled] ACPI APIC Support [Enabled] Anti Surge Support [Enabled] APM Conî¿guration Hardware Monitor Version 0306 v02.61 (C)Copyright 1985-2010, American Megatrends, Inc.
Chapter 2: BIOS information 2-23 2.6.3 ACPI APIC Support [Enabled] [Disabled] When set to [Disabled], the system disable the Advanced Conîguration and Power Interface (ACPI) support in the Advanced Programmable Interrupt Controller (APIC). [Enabled] When set to [Enabled], the ACPI APIC table pointer is included in the RSDT pointer list. 2.6.4 Anti Surge Support [Enabled] Allows you to enable or disable the Anti-Surge protection feature. Conîguration options: [Disabled] [Enabled] 2.6.5 APM Conîguration Restore On AC Power Loss [Power Off] [Power Off] The system goes into off state after an AC power loss. [Power On] The system goes into on state after an AC power loss. [Last State] The system goes into either off or on state, whatever the system state was before the AC power loss. Power On By RTC Alarm [Disabled] [Disabled] Disables RTC to generate a wake event. [Enabled] When set to [Enabled], the items RTC Alarm Date (Days) / System Time will become user-conîgurable with set values. Power On By External Modems [Disabled] [Disabled] Disables to power up the computer when the external modem receives a call while the computer is in Soft-off mode. [Enabled] The computer could be powered up when the external modem receives a call while the computer is in Soft-off mode. The computer cannot receive or transmit data until the computer and applications are fully running. Thus, connection cannot be made on the îrst try . Turning an external modem off and then back on while the computer is off causes an initialization string that turns the system power on. Power On By PCI Devices [Disabled] [Disabled] Disables the PME to wake up from S5 by PCI devices. [Enabled] Allows you to turn on the system through a PCI LAN or modem card. This feature requires an A TX power supply that provides at least 1A on the 5VSB lead. Power On By PCIE Devices [Disabled] Allows you to enable or disable the PCIE devices to generate a wake event. [Disabled] Disables the PCIE devices to generate a wake event. [Enabled] Enables the PCIE devices to generate a wake event.
2-24 ASUS P7H55-M/USB3 Power On By PS/2 Keyboard [Disabled] Allows you to use speciîc keys on the keyboard to turn on the system. This feature requires an A TX power supply that provides at least 1A on the 5VSB lead. Conîguration options: [Disabled] [Space Bar] [Ctrl-Esc] [Power Key] 2.6.6 Hardware Monitor CPU/MB T emperature [xxxºC/xxxºF] The onboard hardware monitor automatically detects and displays the CPU and motherboard temperatures. Select Ignored if you do not wish to display the detected temperatures. CPU / Chassis Fan Speed [xxxxRPM] or [Ignored] / [N/A] The onboard hardware monitor automatically detects and displays the CPU, chassis, and power fan speed in rotations per minute (RPM). If the fan is not connected to the motherboard, the îeld shows N/A . Select Ignored if you do not wish to display the detected speed. CPU Fan Speed Low Limit [200] This item appears only when you enable the CPU Q-Fan Control feature and allows you to set the low limit of the CPU fan speed. Conîguration options: [500] [400] [300] [200] [100] [Ignored] CPU Q-Fan Control [Enabled] [Disabled] Disables the CPU Q-Fan control feature. [Enabled] Enables the CPU Q-Fan control feature. CPU Fan Profile [Standard] This item appears only when you enable the CPU Q-Fan Control feature and allows you to set the appropriate performance level of the CPU fan. [Standard] Sets to [Standard] to make the CPU fan automatically adjust depending on the CPU temperature. [Silent] Sets to [Silent] to minimize the fan speed for quiet CPU fan operation. [T urbo] Set to [T urbo] to achieve maximum CPU fan speed. [Manual] Allows you to individually set the CPU fan parameters. The following items appear only when you set the CPU Fan Proîle to [Manual]. CPU Upper T emperature [70ºC/158ºF] Sets the upper limit of the CPU temperature. Conîguration options: [40ºC/104ºF] [50ºC/122ºF] [70ºC/158ºF] [60ºC/140ºF] [70ºC/158ºF] [80ºC/176ºF] [90ºC/194ºF] CPU Fan Max. Duty Cycle [100%] Sets the maximum CPU fan duty cycle. When the CPU temperature reaches the upper limit, the CPU fan will operate at the maximum duty cycle. Conîguration options: [20%] [30%] [40%] [50%] [60%] [70%] [80%] [90%] [100%] CPU Lower T emperature [40ºC/104ºF] Displays the lower limit of the CPU temperature.
Chapter 2: BIOS information 2-25 CPU Fan Min. Duty Cycle [20%] Sets the minimum CPU fan duty cycle. When the CPU temperature is under 40ºC/104ºF , the CPU fan will operate at the minimum duty cycle. Conîguration options: [00%] [10%] [20%] [30%] [40%] [50%] [60%] [70%] [80%] [90%] [100%] CPU V oltage, 3.3V V oltage, 5V V oltage, 12V V oltage The onboard hardware monitor automatically detects the voltage output through the onboard voltage regulators. Select Ignored if you do not want to detect this item. 2.7 Boot menu The Boot menu items allow you to change the system boot options. Select an item then press <Enter> to display the submenu. 2.7.1 Boot Device Priority 1st ~ xxth Boot Device [Removable Dev .] These items specify the boot device priority sequence from the available devices. The number of device items that appears on the screen depends on the number of devices installed in the system. Conîguration options: [Removable Dev .] [Hard Drive] [A T API CD-ROM] [Disabled] ⢠T o select the boot device during system startup, press <F8> when ASUS Logo appears. ⢠T o access Windows ® OS in Safe Mode, do any of the following: ⢠Press <F5> when ASUS Logo appears. ⢠Press <F8> after POST . v02.61 (C)Copyright 1985-2010, American Megatrends, Inc. P7H55-M/USB3 BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit Speciî¿es the Boot Device Priority sequence. A virtual îoppy disk drive (Floppy Drive B: ) may appear when you set the CD-ROM drive as the î¿rst boot device. ââ Select Screen ââ Select Item Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit Boot Settings Boot Device Priority Boot Settings Conî¿guration Security Version 0306
2-26 ASUS P7H55-M/USB3 Set this item to [Enabled] to use the ASUS MyLogo2⢠feature. 2.7.2 Boot Settings Conîguration Quick Boot [Enabled] Enabling this item allows the BIOS to skip some power on self tests (POST) while booting to decrease the time needed to boot the system. When this item is set to [Disabled], BIOS performs all the POST items. Conîguration options: [Disabled] [Enabled] Full Screen Logo [Enabled] Enables or disables the full screen logo display feature. Conîguration options: [Disabled] [Enabled] AddOn ROM Display Mode [Force BIOS] Sets the display mode for option ROM. Conîguration options: [Force BIOS] [Keep Current] Bootup Num-Lock [On] Selects the power-on state for the NumLock. Conîguration options: [Off] [On] W ait for âF1â If Error [Enabled] When this item is set to [Enabled], the system waits for the F1 key to be pressed when error occurs. Conîguration options: [Disabled] [Enabled] Hit âDEL â Message Display [Enabled] When this item is set to [Enabled], the system displays the message Press DEL to run Setup during POST . Conîguration options: [Disabled] [Enabled]
Chapter 2: BIOS information 2-27 2.7.3 Security The Security menu items allow you to change the system security settings. Select an item then press <Enter> to display the conîguration options. Change Supervisor Password Select this item to set or change the supervisor password. The Supervisor Password item on top of the screen shows the default Not Installed. After you set a password, this item shows Installed. T o set a Supervisor Password: 1. Select the Change Supervisor Password item and press <Enter> . 2. In the password box, key in a password containing up to six letters or numbers, or both, then press <Enter>. 3. Conîrm the password when prompted. The message Password Installed appears after you successfully set your password. T o change the supervisor password, follow the same steps as in setting a supervisor password. T o clear the supervisor password, select the Change Supervisor Password then press <Enter> twice. The message Password uninstalled appears. If you forget your BIOS password, you can clear it by erasing the CMOS Real T ime Clock (RTC) RAM. See section 1.9 Jumpers for information on how to erase the RTC RAM. After you have set a supervisor password, the other items appear to allow you to change other security settings. User Access Level [Full Access] This item allows you to select the access restriction to the Setup items. Conîguration options: [No Access] [View Only] [Limited] [Full Access] No Access prevents user access to the Setup utility . View Only allows access but does not allow change to any îeld. Limited allows changes only to selected îelds, such as Date and T ime. Full Access allows viewing and changing all the îelds in the Setup utility . Change User Password Select this item to set or change the user password. The User Password item on top of the screen shows the default Not Installed. After you set a password, this item shows Installed. T o set a User Password: 1. Select the Change User Password item and press <Enter> . 2. In the password box, key in a password containing up to six letters or numbers, or both, then press <Enter>. 3. Conîrm the password when prompted. The message â Password Installedâ appears after you set your password successfully . T o change the user password, follow the same steps as in setting a user password.
2-28 ASUS P7H55-M/USB3 Clear User Password Select this item to clear the user password. Password Check [Setup] When this item is set to [Setup], BIOS checks for user password when accessing the Setup utility . When this item is set to [Always], BIOS checks for user password both when accessing Setup and booting the system. Conîguration options: [Setup] [Always] 2.8 T ools menu The T ools menu items allow you to conîgure options for special functions. Select an item then press <Enter> to display the submenu. 2.8.1 ASUS O.C. Proîle This item allows you to store or load multiple BIOS settings. Add Y our CMOS Proîle Allows you to save the current BIOS île to the BIOS Flash. In the Name sub-item, type your proîle name and press <Enter>, and then choose a proîle number to save your CMOS settings in the Save to sub-item. Load CMOS Proîles Allows you to load the previous BIOS settings saved in the BIOS Flash. Press <Enter>, and choose a proîle to load. Start O.C. Proîle Allows you to run the utility to save and load CMOS. Press <Enter> to run the utility . ⢠This function can support devices such as a USB îash disk with F A T 32/16 format and single partition only . ⢠DO NOT shut down or reset the system while updating the BIOS to prevent the system boot failure! ⢠We recommend that you update the BIOS île only coming from the same memory/CPU conîguration and BIOS version. ⢠Only the CMO île can be loaded. ASUS O.C. Proî¿le AI NET 2 ASUS EZ Flash 2 Express Gate [Disabled] IO LevelUp [Disabled] P7H55-M/USB# BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit Tools Settings Version 0306
Chapter 2: BIOS information 2-29 2.8.2 AI NET 2 Check Realtek LAN cable [Disabled] Enables or disables checking of the Realtek LAN cable during the Power-On Self-T est (POST). Conîguration options: [Disabled] [Enabled] 2.8.3 ASUS EZ Flash 2 Allows you to run ASUS EZ Flash 2. When you press <OK> , a conîrmation message appears. Use the left/right arrow key to select between [Y es] or [No] , then press <OK> to conîrm your choice. See section 2.1.2 ASUS EZ Flash 2 for details. 2.8.4 Express Gate [Disabled] Allows you to enable or disable the ASUS Express Gate feature. The ASUS Express Gate feature is a unique instant-on environment that provides quick access to the Internet browser and Skype. Conîguration options: [Disabled] [Enabled] [Auto] Enter OS T imer [10 Seconds] Sets countdown duration that the system waits at the Express Gateâs îrst screen before starting Windows or other installed OS. Choose [Prompt User] to stay at the îrst screen of Express Gate for user action. Conîguration options: [Prompt User] [1 second] [3 seconds] [5 seconds] [10 seconds] [15 seconds] [20 seconds] [30 seconds] Reset User Data [No] Allows you to clear Express Gateâs user data. [Reset] When setting this item to [Reset], ensure that you save the setting to the BIOS so that the user data will be cleared the next time you enter the Express Gate. User data includes the Express Gateâs settings as well as any personal information stored by the web browser such as bookmarks, cookies, browsing history . This is useful in the rare case where corrupt settings prevent the Express Gate environment from launching properly . [No] Set to [No] to disable the Reset User Data function when entering the Express Gate. The îrst time wizard will run again when you enter the Express Gate environment after clearing its settings. 2.8.5 IO LevelUp [Disabled] Conîguration options: [Disabled] [USB 3.0] [SA T A 6Gb/s]
2-30 ASUS P7H55-M/USB3 2.9 Exit menu The Exit menu items allow you to load the optimal or failsafe default values for the BIOS items, and save or discard your changes to the BIOS items. Pressing <Esc> does not immediately exit this menu. Select one of the options from this menu or <F10> from the legend bar to exit. Exit & Save Changes Once you are înished making your selections, choose this option from the Exit menu to ensure the values you selected are saved to the CMOS RAM. An onboard backup battery sustains the CMOS RAM so it stays on even when the PC is turned off. When you select this option, a conîrmation window appears. Select Ok to save changes and exit. Exit & Discard Changes Select this option only if you do not want to save the changes that you made to the Setup program. If you made changes to îelds other than System Date, System T ime, and Password, the BIOS asks for a conîrmation before exiting. Discard Changes This option allows you to discard the selections you made and restore the previously saved values. After selecting this option, a conîrmation appears. Select Ok to discard any changes and load the previously saved values. Load Setup Defaults This option allows you to load the default values for each of the parameters on the Setup menus. When you select this option or if you press <F5>, a conîrmation window appears. Select Ok to load default values. Select Exit & Save Changes or make other changes before saving the values to the non-volatile RAM. Exit system setup after saving the changes. F10 key can be used for this operation. P7H55-M/USB# BIOS Setup Main Ai Tweaker Advanced Power Boot Tools Exit Version 0306 Exit Options Exit & Save Changes Exit & Discard Changes Discard Changes Load Setup Defaults
ASUS contact information ASUST eK Computer Inc. Address 15 Li-T e Road, Peitou, T aipei, T aiwan 1 1259 T elephone 886-2-2894-3447 Fax 886-2-2890-7798 E-mail info@asus.com.tw Web site www .asus.com.tw T echnical Support T elephone 86-21-3842991 1 Online support support.asus.com ASUS Computer International (America) Address 800 Corporate W ay , Fremont, CA 94539, USA T elephone 1-510-739-3777 Fax 1-510-608-4555 Web site usa.asus.com T echnical Support T elephone 1-812-282-2787 Support fax 1-812-284-0883 Online support support.asus.com ASUS Computer GmbH (Germany and Austria) Address Harkort Str . 21-23, D-40880 Ratingen, Germany Fax 49-2102-95991 1 Web site www .asus.de Online contact www .asus.de/sales T echnical Support T elephone (Component) 49-1805-010923* T elephone (System/Notebook/Eee/LCD) 49-1805-010920* Support Fax 49-2102-9599-1 1 Online support support.asus.com * EUR 0.14/minute from a German îxed landline; EUR 0.42/minute from a mobile phone.
DECLARATION OF CONFORMITY Per FCC Part 2 Section 2. 1077(a) Responsible Party Name: Asus Computer International Address: 800 Corporate Way, Fremont , CA 94539. Phone/Fax No: (510)739-3777/(510)608-4555 hereby declares that the product Product Name : Motherboard Model Number : P7H55-M/USB3 Conforms to the following specifications: FC C Pa rt 1 5, S ubp ar t B, Unintentional Radiators FC C Pa rt 1 5, S ubp ar t C, Intentional Radiators FC C Pa rt 1 5, S ubp ar t E, Intentional Radiators Supplementary Information: This device compl ies with part 15 of the FCC Rules. Operat ion is sub ject to the follo wing tw o condi tions: (1) This device may not ca use har mful inte rferen ce, and (2) this dev ice must acc ept an y in terf erence recei ved, incl uding inte rferen ce t hat ma y caus e un desire d op eratio n. Representative Personʼs Name : Steve Chang / President Signature : Date : May 14, 2010 EC Declaration of Conformity We, the undersigned, Manufacturer: ASUSTek COMPUTER INC. Address, City: No. 150, LI-TE RD., PEITOU, TAIPEI 112, TAIWAN R.O.C. Country: TAIWAN Authorized representative in Europe: ASUS COMPUTER GmbH Address, City: HARKORT STR. 21-23, 40880 RATINGEN Country: GERMANY declare the following apparatus: Product name : Motherboard Model name : P7H55-M/USB3 conform with the essential requirements of the following directives: 2004/108/EC-EMC Directive EN 55022:2 006 A1:2007 EN 61000-3 -2:2006 EN 55013:2 001 A1:2003 A2:2006 EN 55024:1 998 A1:2001 A2:2003 EN 61000-3 -3:2008 EN 55020:2 007 1999/5/EC-R &TTE Directive EN 300 328 V1.7.1(2006-05) EN 300 440 -1 V1.4.1(2008-05) EN 300 440 -2 V1.2.1(2008-03) EN 301 511 V9.0.2(2003-03) EN 301 908 -1 V3.2.1(2007-05) EN 301 908 -2 V3.2.1(2007-05) EN 301 893 V1.4.1(2005-03) EN 50360:2 001 EN 50371:2 002 EN 62311:2 008 EN 50385:2 002 EN 301 489 -1 V1.8.1(2008-04) EN 301 489 -3 V1.4.1(2002-08) EN 301 489 -4 V1.3.1(2002-08) EN 301 489 -7 V1.3.1(2005-11) EN 301 489 -9 V1.4.1(2007-11) EN 301 489 -17 V1.3.2(2008-04) EN 301 489 -24 V1.4.1(2007-09) EN 302 326 -2 V1.2.2(2007-06) EN 302 326 -3 V1.3.1(2007-09) EN 301 357 -2 V1.3.1(2006-05) 2006/95/EC-L VD Directive EN 60950 -1:2001 A1 1:2004 EN 60950-1:2006 EN6006 5:2002 A1:2006 EN 60950 -1:2006 A11:2009 2009/125/EC-ErP Directive Regulation (EC) No. 1275/2008 EN 62301:2 005 Regulation (EC) No. 642/2009 EN 62301:2 005 Regulation (EC) No. 278/2009 EN 62301:2 005 CE marking Declaration Date: May .14, 2010 Y ear to begin affixing CE marking:2010 Position : CEO Name : Jerry Shen Signature : __________ ( EC conformit y markin g)