Asus A55BM-K User Manual
Motherboard A55BM-K
ii E8809 First Edition November 2013 Copyright © 2013 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 contains copyrighted software that is licensed under the General Public License (âGPLâ), under the Lesser General Public License V ersion (âLGPLâ) and/or other Free Open Source Software Licenses. Such software in this product is distributed without any warranty to the extent permitted by the applicable law . Copies of these licenses are included in this product. Where the applicable license entitles you to the source code of such software and/or other additional data, you may obtain it for a period of three years after our last shipment of the product, 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 Safety information ...................................................................................................... iv About this guide ......................................................................................................... iv Package contents ....................................................................................................... vi A55BM-K speciîcations summary ........................................................................... v i Product introduction 1.1 Before you proceed ...................................................................................... 1-1 1.2 Motherboard overview ................................................................................. 1-2 1.3 Accelerated Processing Unit (APU) ............................................................ 1-4 1.4 System memory ............................................................................................ 1-7 1.5 Expansion slots .......................................................................................... 1-10 1.6 Jumpers ....................................................................................................... 1-1 1 1.7 Connectors .................................................................................................. 1-13 1.8 Software support ........................................................................................ 1-21 BIOS information 2.1 Managing and updating your BIOS ............................................................. 2-1 2.2 BIOS setup program ..................................................................................... 2-5 2.3 My Favorites .................................................................................................. 2-9 2.4 Main menu ................................................................................................... 2-10 2.5 Ai T weaker menu ........................................................................................ 2-1 1 2.6 Advanced menu .......................................................................................... 2-12 2.7 Monitor menu .............................................................................................. 2-12 2.8 Boot menu ................................................................................................... 2-13 2.9 T ools menu .................................................................................................. 2-14 2.10 Exit menu .................................................................................................... 2-14 Appendices Notices ..................................................................................................................... A-1 ASUS contact information ...................................................................................... A-4
iv Safety information Electrical safety T o prevent electrical shock hazard, disconnect the power cable from the electrical 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 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.
v 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. 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 IMPORT ANT : Instructions that you MUST follow to complete a task. . NOTE: T ips and additional information to help you complete a task. 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 ( ).
vi (continued on the next page) A55BM-K speciîcations summary APU AMD ® FM2 Socket for AMD ® A-series/Athlon⢠Series processors AMD ® T urbo Core T echnology 3.0 support Supports APU up to 4 cores ⢠Refer to www.asus.com for the AMD ® APU support list. Chipset AMD ® A55 FCH (Hudson D2) Memory 2 x DDR3 DIMM, max. 32GB, DDR3 2133* / 1866 / 1600 / 1333 MHz, non- ECC un-buffered memory Dual-channel memory architecture Supports AMD Memory Proîle (AMP) memory ⢠The maximum 32GB memory capacity can be supported with 16GB or above DIMMs. ASUS will update the memory QVL once the DIMMs are available in the market. ⢠Hyper DIMM support is subject to the physical characteristics of individual APUs. ⢠Refer to www.asus.com for the latest Memory QVL (Qualiîed Vendors List). ⢠When you install a total memory of 4GB capacity 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. Graphics Integrated AMD ® Radeon⢠HD 7000 / 8000 Series Graphics in the A- Series APU Multi-VGA output support: DVI and D-Sub ports Supports Dual-link DVI with max. resolution 2560x1600@60Hz Supports D-Sub with max. resolution 1920x1600@60Hz AMD ® Dual Graphics technology support* Maximum shared memory of 2G Supports AMD ® Dual Graphics technology ⢠Refer to http://www.amd.com/us/products/technologies/dual-graphics/ Pages/dual-graphics.aspx#3 for the discrete GPUs which support Dual Graphics technology . Expansion slots 1 x PCIe 3.0/2.0 x16 slot* 1 x PCIe 2.0 x1 slot 1 x PCI slot ⢠Only FM2 processors support PCIe 3.0. Package contents Check your motherboard package for the following items. Motherboard ASUS A55BM-K motherboard Cables 2 x S erial A T A 3.0 Gb/ s cables Accessories 1 x I/O Shield Application DVD Support DVD Documentation User Guide If any of the above items is damaged or missing, contact your retailer .
vii A55BM-K speciîcations summary Storage / RAID AMD ® A55 FCH: - 4 x Serial A T A 3.0Gb/s connectors (dark brown) support RAID 0, RAID 1, RAID 10, and JBOD conîgurations LAN Realtek ® 81 1 1G PCIe Gigabit LAN controller Audio Realtek ® ALC887-VD 8-channel High Deînition Audio CODEC ⢠Use a chassis with HD audio module in the front panel to support a 7.1-channel audio output. USB AMD ® A55 FCH: - 8 x USB 2.0 ports (4 ports at the back panel, 4 ports at mid-board) ASUS unique features ASUS DIGI VRM - 3 1 Phase digital power design ASUS Enhanced DRAM Overcurrent Protection - Short circuit damage protection ASUS ESD Guards - Strong ESD protection for extended component lifespan ASUS Stainless Steel Back I/O - 3x More durable corrosion-resistant coating ASUS Exclusive Features - ASUS EPU - ASUS Network iControl - ASUS AI Charger - ASUS AI Suite III - ASUS Anti-Surge Protection ASUS Quiet Thermal Solution - ASUS Fanless Design: Stylish Heatsink Solution - ASUS Fan Xpert ASUS EZ DIY - ASUS UEFI BIOS EZ Mode - ASUS CrashFree BIOS 3 - ASUS EZ Flash 2 - ASUS MyLogo 2⢠Back Panel I/O ports 1 x PS/2 mouse port (green) 1 x PS/2 keyboard port (purple) 1 x DVI-D port 1 x VGA output port 1 x LAN (RJ-45) port 4 x USB 2.0/1.1 ports 8-channel audio I/O ports (3-jack) (continued on the next page)
viii A55BM-K speciîcations summary Speciîcations are subject to change without notice. Internal I/O connectors 2 x USB 2.0 connectors support additional 4 USB 2.0 ports 1 x COM connector 4 x SA T A 3.0Gb/s connectors 1 x System panel connector 1 x Internal Speaker connector 1 x CPU fan connector (4-pin) 1 x S/PDIF output connector 1 x Chassis fan connector (4-pin) 1 x Front panel audio connector 1 x 24-pin EA TX power connector 1 x 4-pin A TX 12V power connector BIOS 64 Mb Flash ROM, UEFI AMI BIOS, PnP , DMI 2.0, WfM 2.0, SM BIOS 2.7, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFreen BIOS 3, F12 Printscreen function, F3 Shortcut function and ASUS DRAM SPD (Serial Presence Detect) memory information Support DVD Drivers ASUS Update ASUS utilities Anti-Virus software (OEM version) Operating System Support Windows ® 8.1 / 8.1 64bit Windows ® 8 / 8 64bit Windows ® 7 / 7 64bit Windows ® Vista / V ista 64-bit Windows ® XP Form factor uA TX form factor: 8.9 in x 7.2 in (22.6 cm x 18.3 cm)
ASUS A55BM-K 1-1 Product introduction 1 1.1 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. Standby Power 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 should 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 A55BM-K A55BM-K Onboard LED
1-2 Chapter 1: Product introduction A55BM-K Place this side towards the rear of the chassis 1.2 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. 1.2.1 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 . 1.2.2 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.
ASUS A55BM-K 1-3 1.2.3 Motherboard layout Connectors/Jumpers/Slots/LED Page 1. Keyboard and USB device wake up (3-pin KB_USBPWB) 1-13 2. A TX power connectors (24-pin EA TXPWR, 4-pin A TX12V) 1-16 3. AMD FM2 socket 1-4 4. CPU and chassis fan connectors (4-pin CPU_F AN and 4-pin CHA_FAN) 1-15 5. DDR3 DIMM slots 1-7 6. Speaker connector (4-pin SPEAKER) 1-18 7. SA T A 3.0Gb/s connectors (7-pin SA T A3G_1~4) 1-17 8. System panel connector (10-1 pin F_P ANEL) 1-18 9. USB 2.0 connectors (10-1 pin USB34, USB56) 1-20 10. Clear RTC RAM (3-pin CLRTC) 1-1 1 1 1. USB device wake-up (3-pin USBPWF) 1-12 12. Digital audio connector (4-1 pin SPDIF_OUT) 1-17 13. Serial port connector (10-1 pin COM) 1-20 14. Standby power LED (SB_PWR) 1-1 15. Front panel audio connector (10-1 pin AAFP) 1-19 A55BM-K PCIEX16 PCIEX1_1 PCI1 F_PANEL SPEAKER USBPWF COM CLRTC KB_USBWB USB56 USB34 AAFP SPDIF_OUT ATX12V EATXPWR CPU_FAN CHA_FAN BATTERY Super I/O ALC 887 RTL 8111G ASM 1042 64Mb BIOS SB_PWR 22.6cm(8.9in) AMD ® A55 DDR3 DIMM_A1 (64bit, 240-pin module) DDR3 DIMM_B1 (64bit, 240-pin module) SATA3G_1 SATA3G_2 SATA3G_3 SATA3G_4 AUDIO KBMS LAN_USB12 USB1112 18.3cm(7.2in) DVI_VGA SOCKET FM2 DIGI VRM 3 2 1 5 4 2 6 8 7 9 10 11 12 13 15 14 7
1-4 Chapter 1: Product introduction Ensure that you use an APU designed for the FM2 socket. The APU îts in only one correct orientation. DO NOT force the APU into the socket to prevent bending the pins and damaging the APU! 1.3 Accelerated Processing Unit (APU) This motherboard comes with an FM2 socket designed for AMD ® A-series accelerated processors with AMD ® Radeon⢠HD 7000/8000 series graphics. 1.3.1 Installing the APU 1 2 A55BM-K A55BM-K CPU socket FM2
ASUS A55BM-K 1-5 4 3 1.3.2 APU heatsink and fan assembly installation Apply the Thermal Interface Material to the APU heatsink and APU before you install the heatsink and fan if necessary . 1 2 T o install the APU heatsink and fan assembly
1-6 Chapter 1: Product introduction 5 3 4 T o uninstall the APU heatsink and fan assembly 1 2 3 5 4
ASUS A55BM-K 1-7 1.4 System memory 1.4.1 Overview The motherboard comes with two 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 Channel B DIMM_B1 A55BM-K A55BM-K 240-pin DDR3 DIMM sockets DIMM_A1 DIMM_B1
1-8 Chapter 1: Product introduction 1.4.2 Memory conîgurations Y ou may install 1GB, 2GB, 4GB, and 8GB unbuffered non-ECC DDR3 DIMMs into the DIMM sockets. ⢠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. ⢠Always install DIMMs with the same CAS latency . For optimal compatibility , we recommend that you install memory modules of the same version or date code (D/C) from the same vendor . Check with the retailer to get the correct memory modules. ⢠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: - Install a maximum of 3GB system memory if you are using a 32-bit Windows® OS. - Use a 64-bit Windows ® OS if you want to install 4GB or more memory on the motherboard. ⢠This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less. ⢠The maximum 32GB memory capacity can be supported with 16GB or above DIMMs. ASUS will update the memory QVL once the DIMMs are available in the market. ⢠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 2.5 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 (2 DIMMs) or overclocking condition. ⢠Refer to www .asus.com for the latest Memory QVL (Qualiîed V endors List).
ASUS A55BM-K 1-9 1.4.3 Installing a DIMM 1 2 3 T o remove a DIMM B A
1-10 Chapter 1: Product introduction 1.5 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. 1.5.1 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 . 1.5.2 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. 1.5.3 PCI slot The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI speciîcations.
ASUS A55BM-K 1-1 1 1.5.4 PCI Express x1 slot This motherboard supports PCI Express 2.0 x1 network cards, SCSI cards, and other cards that comply with the PCI Express speciîcations. 1.5.5 PCI Express x16 slot This motherboard supports one PCI Express 3.0/2.0 x16 graphics cards that comply with the PCI Express speciîcations. IRQ assignments for this motherboard A B C D E F G H PCIEx16_1 â â shared â â â â â PCIEx1_1 shared â â â â â â â PCI1 slot â â â â shared â â â Realtek LAN controller â â shared â - â â â HD audio shared â â â â â â â SA T A controller â â â shared â â â â On Chip USB EHCI 1/2/3 â shared â â â â â â On Chip USB OHCI 1/2/3/4 â â shared â â â â â 1.6 Jumpers 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. A55BM-K A55BM-K Clear RTC RAM 1 2 2 3 Normal (Default) Clear RTC CLRTC
1-12 Chapter 1: Product introduction 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. 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. 2. USB device wake-up (3-pin USBPWF) Set these jumpers to 5V to wake up the computer from S1 sleep mode (CPU stopped, DRAM refreshed, system running in low power mode) using the connected USB devices. Set to 5VSB to wake up from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh, power supply in reduced power mode). ⢠The USB device wake-up feature requires a power supply that can provide 500mA on the 5VSB lead for each USB port; otherwise, the system would not power up. ⢠The total current consumed must NOT exceed the power supply capability ( 5VSB) whether under normal condition or in sleep mode. A55BM-K A55BM-K USB device wake up 2 1 2 3 5V (Default) 5VSB USBPWF
ASUS A55BM-K 1-13 3. Keyboard and USB device wake up (3-pin KB_USBPWB) This jumper allows you to enable or disable the keyboard and USB device wake-up feature. When you set this jumper to pins 2-3 ( 5VSB), you can wake up the computer by pressing a key on the keyboard. This feature requires an A TX power supply that can supply at least 1A on the 5VSB lead, and a corresponding setting in the BIOS. 1.7 Connectors 1.7.1 Rear panel connectors 1. PS/2 Mouse port (green). This port is for a PS/2 mouse. 2. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices. 3. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub. A55BM-K A55BM-K Keyboard and USB device wake up 1 2 2 3 5V 5VSB (Default) KB_USBPWB 4 5 3 6 7 1 9 2 8
1-14 Chapter 1: Product introduction 4. Line In port (light blue). This port connects to the tape, CD, DVD player, or other audio sources. 5. Line Out port (lime). This port connects to a headphone or a speaker . In the 4.1, 5.1, and 7.1-channel conîgurations, the function of this port becomes Front Speaker Out. 6. Microphone port (pink). This port connects to a microphone. Refer to the audio conîguration table below for the function of the audio ports in 2.1, 4.1, 5.1, or 7.1-channel conîguration. Audio 2.1, 4.1, 5.1, or 7.1-channel conîguration Port Headset 2.1- channel 4.1-channel 5.1-channel 7.1-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 a 7.1-channel audio output: Use a chassis with HD audio module in the front panel to support a 7.1-channel audio output. 7. USB 2.0 ports. These 4-pin Universal Serial Bus (USB) ports are for USB 2.0/1.1 devices. 8 . DVI-D port. This port is for any DVI-D compatible device. DVI-D canât be converted to output RGB Signal to CRT and isnât compatible with DVI-I. 9. PS/2 Keyboard port (purple). This port is for a PS/2 keyboard. LAN port SPEED LED ACT/LINK LED Activity/Link LED Speed LED Status Description Status Description Off No link OFF 10Mbps connection Orange Linked ORANGE 100Mbps connection Orange (Blinking) Data activity GREEN 1Gbps connection Orange (Blinking then steady) Ready to wake up from S5 mode LAN port LED indications
ASUS A55BM-K 1-15 1.7.2 Internal connectors 1. CPU and chassis fan connectors (4-pin CPU_F AN, and 4-pin CHA_F AN) Conn ect th e fan c ables to the fan co nnecto rs o n the motherb oard, ensuring tha t the blac k wire of eac h cabl e match es the groun d pi n of t he conn ector. 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. ⢠The CPU_F AN connector supports a CPU fan of maximum 2A (24 W) fan power . ⢠The CPU_F AN and CHA_FAN connectors support the ASUS Fan Xpert feature. A55BM-K A55BM-K Fan connectors CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND CHA FAN PWM CHA FAN IN CHA FAN PWR GND CHA_FAN
1-16 Chapter 1: Product introduction 2. A TX power connectors (24-pin EA TXPWR, 4-pin A TX12V) These connectors are for an A TX power supply . The plugs from the power supply are designed to ît these connectors in only one orientation. Find the proper orientation and push down îrmly until the connectors completely ît. ⢠We recommend that you use an A TX 12V Speciîcation 2.0-compliant power supply unit (PSU) with a minimum of 300W power rating. This PSU type has 24-pin and 4-pin power plugs. ⢠If you intend to use a PSU with 20-pin and 4-pin power plugs, ensure that the 20-pin power plug can provide at least 15 A on 12 V and that the PSU has a minimum power rating of 300W . The system may become unstable or may not boot up if the power is inadequate. ⢠DO NOT forget to connect the 4-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 or when you intend to install additional 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. A55BM-K A55BM-K ATX 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 ATX12V PIN 1 12V DC 12V DC GND GND
ASUS A55BM-K 1-17 3. Serial A T A 3.0 Gb/s connectors (7-pin SA T A3G 1~4) These connectors are for the Serial A T A 3.0 Gb/s signal cables for Serial A T A hard disk drives and optical disc drives. If you installed Serial A T A hard disk drives, you can create a RAID 0, RAID 1, or RAID 10 conîguration through the onboard controller . ⢠These connectors are set to AHCI mode by default. If you intend to create a Serial A T A RAID set using these connectors, set the type of the SA T A connectors in the BIOS to [RAID] . ⢠Y ou must install Windows ® XP Service Pack 3 or later version before using Serial A T A hard disk drives. The Serial A T A RAID feature is available only if you are using Windows ® XP SP3 or later version. ⢠When using hot-plug and NCQ, set the type of the SA T A connectors in the BIOS to [AHCI] . 4. Digital audio connector (4-1 pin SPDIF_OUT) This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. SATA3G_2 GND RSATA_TXP1 RSATA_TXN1 GND RSATA_RXN1 RSATA_RXP1 GND SATA3G_1 GND RSATA_TXP2 RSATA_TXN2 GND RSATA_RXN2 RSATA_RXP2 GND SATA3G_3 GND RSATA_TXP3 RSATA_TXN3 GND RSATA_RXN3 RSATA_RXP3 GND SATA3G_4 GND RSATA_RXP4 RSATA_RXN4 GND RSATA_TXN4 RSATA_TXP4 GND A55BM-K A55BM-K SATA 3.0Gb/s connectors The S/PDIF module is purchased separately . SPDIF_OUT 5V SPDIFOUT GND A55BM-K A55BM-K Digital audio connector
1-18 Chapter 1: Product introduction 5. System panel connector (10-1 pin F_P ANEL) This connector supports several chassis-mounted functions. ⢠System power LED (2-pin PWR_LED) 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 HDD_LED) This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable to this connector . The HDD LED lights up or îashes when data is read from or written to the HDD. ⢠A TX power button/soft-off button (2-pin PWR_BTN) 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 . 6. Speaker connector (4-pin SPEAKER) The 4-pin connector is for the chassis-mounted system warning speaker . The speaker allows you to hear system beeps and warnings. A55BM-K PIN 1 PWR BTN PWR_LED PWR_LED- PWR GND HDD_LED HDD_LED- Ground HWRST# (NC) F_PANEL PWR LED HDD_LED RESET A55BM-K System panel connector A55BM-K A55BM-K Speaker Out Connector 5V GND GND Speaker Out SPEAKER PIN 1
ASUS A55BM-K 1-19 ⢠We recommend that you connect a high-deînition front panel audio module to this connector to avail of the motherboard 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 to [HD] . ⢠The front panel audio I/O module is purchased separately . 7. Front panel audio connector (10-1 pin AAFP) This connector is for a chassis-mounted front panel audio I/O module that supports either High Deînition Audio or AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector . A55BM-K A55BM-K Front panel audio connector AAFP PIN 1 AGND NC 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
1-20 Chapter 1: Product introduction 8. USB 2.0 connectors (10-1 pin USB34, USB56) 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 480Mbps connection speed. Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard! The USB 2.0 module is purchased separately . 9. Serial port connector (10-1 pin COM) 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 . A55BM-K A55BM-K USB2.0 connectors PIN 1 USB 5V USB_P5- USB_P5 GND NC USB 5V USB_P6- USB_P6 GND USB56 USB34 PIN 1 USB 5V USB_P3- USB_P3 GND NC USB 5V USB_P4- USB_P4 GND A55BM-K A55BM-K Serial port connectors PIN 1 COM DCD TXD GND RTS RI RXD DTR DSR CTS
ASUS A55BM-K 1-21 1.8 Software support 1.8.1 Installing an operating system This motherboard supports Windows ® Vista / 64-bit Windows ® Vista /Windows ® XP / Windows ® 7 / 64-bit Windows ® 7 / Windows ® 8 /64-bit Windows ® 8 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 before installing the drivers for better compatibility and system stability . ⢠Only motherboards installed with an AMD Trinity APU support Windows ® Vista / 64bit Windows ® Vista operaing system. 1.8.2 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 into the optical drive. If Autorun is enabled in your computer , the DVD automatically displays the Specials screen which contains the unique features of ASUS motherboard. Click Drivers, Utilities, Make Disk, Manual, Contact and Specials tabs to display their respective menus. Click an item to install Click an icon to display Support DVD/motherboard information
1-22 Chapter 1: Product introduction
ASUS A55BM-K 2-1 BIOS information 2 2.1 Managing and updating your BIOS 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 . 2.1.1 EZ Update EZ Update is a utility that allows you to automatically update your motherboardâs softwares, drivers and the BIOS version easily . With this utlity , you can also manually update the saved BIOS and select a boot logo when the system goes into POST . T o la unch EZ Upd ate , c lick EZ Upd ate on the A I Su ite 3 m ain me nu b ar. Click to automatically update your motherboardâs driver , software and îrmware Click to înd and select the BIOS from île Click to select a boot logo Click to update the BIOS EZ Update requires an Internet connection either through a network or an ISP (Internet Service Provider).
2-2 Chapter 2: Getting started 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. 2. Enter the Advanced Mode of the BIOS setup program. Go to the T ool menu to select ASUS EZ Flash 2 Utility and press <Enter> to enable it. 3. Press <T ab> to switch to the Drive îeld. 4. Press the Up/Down arrow keys to înd the USB îash disk that contains the latest BIOS, and then press <Enter>. 5. Press <T ab> to switch to the Folder Info îeld. 6. Press the Up/Down arrow keys to înd the BIOS île, and then press <Enter> to perform the BIOS update process. Reboot the system when the update process is done. ⢠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! 2.1.3 ASUS CrashFree BIOS 3 utility The ASUS CrashFree BIOS 3 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 USB îash drive that contains the updated BIOS île. ⢠Before using this utility , rename the BIOS île in the removable device into A55BMK.CAP . ⢠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.
ASUS A55BM-K 2-3 Recovering the BIOS T o recover the BIOS: 1. Turn on the system. 2. Insert the support DVD to the optical drive or the USB îash drive that contains the BIOS île to the USB port. 3. The utility automatically checks the devices for the BIOS île. When found, the utility reads the BIOS île and enters ASUS EZ Flash 2 utility automatically . 4. The system requires you to enter BIOS Setup to recover BIOS setting. T o ensure system compatibility and stability , we recommend that you press <F5> to load default BIOS values. DO NOT shut down or reset the system while updating the BIOS! Doing so can cause system boot failure! 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. 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. 3. Turn of f the computer and disconnect all SA T A hard disk drives (optional).
2-4 Chapter 2: Getting started 3. Select the USB îash drive as the boot device. The DOS screen appears. 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>. 2. The BIOS Updater screen appears as below . ASUSTek BIOS Updater for DOS V1.30 BOARD: A55BM-K VER: 0305 DATE: 11/14/2013 A55BMK.CAP 8390656 2013-11-14 17:30:48 Booting the system in DOS environment 1. Insert the DOS-bootable USB îash drive with the latest BIOS île and BIOS Updater to your computer âs USB port. 2. Boot your computer . When the ASUS Logo appears, press <F8> to show the BIOS Boot Device Select Menu . A:\
ASUS A55BM-K 2-5 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. 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 1.30 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 Optimized Defaults item under the Exit menu. Refer to section 2.10 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. ⢠⢠⢠â¢
2-6 Chapter 2: Getting started 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 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. ⢠Ensure that a USB mouse is connected to your motherboard if you want to use the mouse to control the BIOS setup program. ⢠If the system becomes unstable after changing any BIOS setting, load the default settings to ensure system compatibility and stability . Select the Load Optimized Defaults item under the Exit menu or press hotkey F5. See section 2.10 Exit Menu for details. ⢠If the system fails to boot after changing any BIOS setting, try to clear the CMOS and reset the motherboard to the default value. See section 1.6 Jumpers for information on how to erase the RTC RAM. BIOS menu screen The BIOS setup program can be used under two modes: EZ Mode and Advanced Mode. Y ou can change modes from the Exit menu or from the Exit/Advanced Mode button in the EZ Mode/Advanced Mode screen. EZ Mode By default, the EZ Mode screen appears when you enter the BIOS setup program. The EZ Mode provides you an overview of the basic system information, and allows you to select the display language, system performance mode and boot device priority . T o access the Advanced Mode, click Exit/Advanced Mode or press F7 for the advanced BIOS settings. The default screen for entering the BIOS setup program can be changed.
ASUS A55BM-K 2-7 ⢠The boot device options vary depending on the devices you installed to the system. ⢠The Boot Menu(F8) button is available only when the boot device is installed to the system. Exits the BIOS setup program without saving the changes, saves the changes and resets the system, or enters the Advanced Mode Selects the display language of the BIOS setup program Displays the CPU temperature, CPU voltage output, DRAM information and CPU/chassis fan speed Power Saving mode Normal mode Loads optimized default Selects the boot device priority Displays the system properties of the selected mode on the right hand side Selects the Advanced mode functions Displays the Advanced mode menus SA T A information Selects the boot device priority
2-8 Chapter 2: Getting started Advanced Mode The Advanced Mode provides advanced options for experienced end-users to conîgure the BIOS settings. The îgure below shows an example of the Advanced Mode . Refer to the following sections for the detailed conîgurations. T o access the EZ Mode, click Exit, then select ASUS EZ Mode or press F7. Menu bar The menu bar on top of the screen has the following main items: My Favorites For saving the frequently-used system settings and conîguration Main For changing the basic system conîguration Ai T weaker For changing the overclocking settings Advanced For changing the advanced system settings Monitor For displaying the system temperature, power status, and changing the fan settings Boot For changing the system boot conîguration T ool For conîguring options for special functions Exit For selecting the exit options and loading default settings Navigation keys General help Menu bar Submenu item Conîguration îelds Menu items Pop-up window Back button Last modiîed settings Quick note
ASUS A55BM-K 2-9 Adding items to My Favorites T o add frequently-used BIOS items to My Favorites: 1. Use the arrow keys to select an item that you want to add. When using a mouse, hover the pointer to the item. 2. Press <F4> on your keyboard or right-click on your mouse to add the item to My Favorites page. Y ou cannot add the following items to My Favorites: ⢠Items with submenu options ⢠User-conîgurable items such as language and boot device order ⢠Conîguration items such as Memory SPD Information, system time and date 2.3 My Favorites MyFavorites is your personal space where you can easily save and access your favorite BIOS items.
2-10 Chapter 2: Getting started 2.4 Main menu The Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu provides you an overview of the basic system information, and allows you to set the system date, time, language, and security settings. ⢠If you have forgotten your BIOS password, erase the CMOS Real T ime Clock (RTC) RAM to clear the BIOS password. See section 1.6 Jumpers for information on how to erase the RTC RAM. ⢠The Administrator or User Password items on top of the screen show the default Not Installed . After you set a password, these items show Installed.
ASUS A55BM-K 2-1 1 2.5 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 section vary depending on the CPU and DIMM model you installed on the motherboard. Scroll down to display the other items.
2-12 Chapter 2: Getting started 2.6 Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices. Be cautious when changing the settings of the Advanced menu items. Incorrect îeld values can cause the system to malfunction. 2.7 Monitor menu The Monitor menu displays the system temperature/power status, and allows you to change the fan settings.
ASUS A55BM-K 2-13 2.8 Boot menu The Boot menu items allow you to change the system boot options. Scroll down to display the other items.
2-14 Chapter 2: Getting started 2.9 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. 2.10 Exit menu The Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard your changes to the BIOS items. Y ou can access the EZ Mode from the Exit menu.
A55BM-K A-1 Appendices 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. 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. ⢠⢠⢠⢠⢠â¢
A-2 Appendices IC: Canadian Compliance Statement Complies with the Canadian ICES-003 Class B speciîcations. This device complies with RSS 210 of Industry Canada. This Class B device meets all the requirements of the Canadian interference-causing equipment regulations. This device complies with Industry Canada license exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Cut appareil numérique de la Classe B est conforme à la norme NMB-003 du Canada. Cet appareil numérique de la Classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada. Cet appareil est conforme aux normes CNR exemptes de licence dâIndustrie Canada. Le fonctionnement est soumis aux deux conditions suivantes : (1) cet appareil ne doit pas provoquer dâinterférences et (2) cet appareil doit accepter toute interférence, y compris celles susceptibles de provoquer un fonctionnement non souhaité de lâappareil. 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. VCCI: Japan Compliance Statement VCCI Class B Statement KC: Korea W arning Statement
A55BM-K A-3 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://csr .asus.com/english/REACH.htm. 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. ASUS Recycling/T akeback Services ASUS recycling and takeback programs come from our commitment to the highest standards for protecting our environment. We believe in providing solutions for you to be able to responsibly recycle our products, batteries, other components as well as the packaging materials. Please go to http://csr .asus.com/english/T akeback.htm for detailed recycling information in different regions.
A-4 Appendices 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 http://www .asus.com.tw T echnical Support T elephone 86-21-3842-991 1 Fax 86-21-5866-8722, ext. 9101# Online support http://support.asus.com/techserv/techserv .aspx ASUS COMPUTER INTERNA TIONAL (America) Address 800 Corporate Way , Fremont, CA 94539, USA T elephone 1-510-739-3777 Fax 1-510-608-4555 Web site http://usa.asus.com T echnical Support T elephone 1-812-284-0883 General support 1-812-282-2787 Online support http://support.asus.com/techserv/techserv .aspx ASUS COMPUTER GmbH (Germany and Austria) Address Harkort Str . 21-23, D-40880 Ratingen, Germany Fax 49-2102-959931 Web site http://www .asus.com/de Online contact http://eu-rma.asus.com/sales T echnical Support T elephone 49-2102-5789555 Support Fax 49-2102-95991 1 Online support http://support.asus.com/techserv/techserv .aspx
A55BM-K A-5 DECLARATION OF CONFORMITY Per FCC Part 2 Section 2. 1077(a) Responsible Part y Name: Asus Computer International Address: 800 Corporate Way, Fremont , CA 94539. Phone/Fax No: (510)739-3777/(510)608-4555 hereby de clares that the product Product Name : Motherboard Model Number : A55BM-K Conforms to the following specifications: FC C P art 15 , S ubp ar t B , Unintentional Radiators Supplementary Information: Thi s devi ce co mpl ies wi th par t 15 of the FC C Rul es. Op erat ion is s ubjec t to th e fol lowi ng two co nditi ons: (1) This devi ce may no t ca use ha rmf ul inte rfer ence , and (2) th is dev ice mu st acc ept a ny inte rfer ence rec eive d, inc ludin g inte rfer ence tha t ma y c ause un desi red o pera tion . Representative Personâs Name : Steve Chang / President Signature : Date : Nov. 25, 2013 Ver. 120601 EC Declaration of Conformity We, the undersigned, Manufacturer: ASUSTeK COMPUTER INC. Address, City: 4F, No. 150, LI-TE Rd., PEITOU, TAIPEI 112, TAIWAN 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 : A55BM- K conform with the essential requi rements of the following directives: 2004/108/EC-EMC Directiv e EN 55022:2010 AC:2011 EN 61000-3-2:2006 A2:2009 EN 55013:2001 A1:2003 A2:2006 EN 55024:2010 EN 61000-3-3:2008 EN 55020:2007 A11:2011 1999/5/EC-R &TTE Directiv e EN 300 328 V1.7.1(2006-10) EN 300 440-1 V1.6.1(2010-08) EN 300 440-2 V1.4.1(2010-08) EN 301 511 V9.0.2(2003-03) EN 301 908-1 V5.2.1(2011-05) EN 301 908-2 V5.2.1(2011-07) EN 301 893 V1.6.1(2011-11) EN 302 544-2 V1.1.1(2009-01) EN 302 623 V1.1.1(2009-01) EN 50360:2001 EN 62479:2010 EN 50385:2002 EN 62311:2008 EN 301 489-1 V1.9.2(2011-09) EN 301 489-3 V1.4.1(2002-08) EN 301 489-4 V1.4.1(2009-05) EN 301 489-7 V1.3.1(2005-11) EN 301 489-9 V1.4.1(2007-11) EN 301 489-17 V2.2.1(2012-09) EN 301 489-24 V1.5.1(2010-09) EN 302 326-2 V1.2.2(2007-06) EN 302 326-3 V1.3.1(2007-09) EN 301 357-2 V1.4.1(2008-11) EN 302 291-1 V1.1.1(2005-07) EN 302 291-2 V1.1.1(2005-07) 2006/95/EC-LVD Directive EN 60950-1 / A12:201 1 EN 60065:2002 / A12:2011 2009/125/EC-ErP Directive Regulation (EC) No. 1275/2008 Regulation (EC) No. 642/2009 Regulation (EC) No. 278/2009 Regulation (EC) No. 617/2013 2011/65/EU-RoHS Directive Ver. 130816 CE marking Declaration Date: 25/1 1 /2013 Y ear to be gin affixing CE marking:2013 Position : CEO Name : Jerry Shen Signature : __________ (EC conformity marking)
ii E8809 First Edition November 2013 Copyright © 2013 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 contains copyrighted software that is licensed under the General Public License (âGPLâ), under the Lesser General Public License V ersion (âLGPLâ) and/or other Free Open Source Software Licenses. Such software in this product is distributed without any warranty to the extent permitted by the applicable law . Copies of these licenses are included in this product. Where the applicable license entitles you to the source code of such software and/or other additional data, you may obtain it for a period of three years after our last shipment of the product, 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 Safety information ...................................................................................................... iv About this guide ......................................................................................................... iv Package contents ....................................................................................................... vi A55BM-K speciîcations summary ........................................................................... v i Product introduction 1.1 Before you proceed ...................................................................................... 1-1 1.2 Motherboard overview ................................................................................. 1-2 1.3 Accelerated Processing Unit (APU) ............................................................ 1-4 1.4 System memory ............................................................................................ 1-7 1.5 Expansion slots .......................................................................................... 1-10 1.6 Jumpers ....................................................................................................... 1-1 1 1.7 Connectors .................................................................................................. 1-13 1.8 Software support ........................................................................................ 1-21 BIOS information 2.1 Managing and updating your BIOS ............................................................. 2-1 2.2 BIOS setup program ..................................................................................... 2-5 2.3 My Favorites .................................................................................................. 2-9 2.4 Main menu ................................................................................................... 2-10 2.5 Ai T weaker menu ........................................................................................ 2-1 1 2.6 Advanced menu .......................................................................................... 2-12 2.7 Monitor menu .............................................................................................. 2-12 2.8 Boot menu ................................................................................................... 2-13 2.9 T ools menu .................................................................................................. 2-14 2.10 Exit menu .................................................................................................... 2-14 Appendices Notices ..................................................................................................................... A-1 ASUS contact information ...................................................................................... A-4
iv Safety information Electrical safety T o prevent electrical shock hazard, disconnect the power cable from the electrical 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 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.
v 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. 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 IMPORT ANT : Instructions that you MUST follow to complete a task. . NOTE: T ips and additional information to help you complete a task. 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 ( ).
vi (continued on the next page) A55BM-K speciîcations summary APU AMD ® FM2 Socket for AMD ® A-series/Athlon⢠Series processors AMD ® T urbo Core T echnology 3.0 support Supports APU up to 4 cores ⢠Refer to www.asus.com for the AMD ® APU support list. Chipset AMD ® A55 FCH (Hudson D2) Memory 2 x DDR3 DIMM, max. 32GB, DDR3 2133* / 1866 / 1600 / 1333 MHz, non- ECC un-buffered memory Dual-channel memory architecture Supports AMD Memory Proîle (AMP) memory ⢠The maximum 32GB memory capacity can be supported with 16GB or above DIMMs. ASUS will update the memory QVL once the DIMMs are available in the market. ⢠Hyper DIMM support is subject to the physical characteristics of individual APUs. ⢠Refer to www.asus.com for the latest Memory QVL (Qualiîed Vendors List). ⢠When you install a total memory of 4GB capacity 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. Graphics Integrated AMD ® Radeon⢠HD 7000 / 8000 Series Graphics in the A- Series APU Multi-VGA output support: DVI and D-Sub ports Supports Dual-link DVI with max. resolution 2560x1600@60Hz Supports D-Sub with max. resolution 1920x1600@60Hz AMD ® Dual Graphics technology support* Maximum shared memory of 2G Supports AMD ® Dual Graphics technology ⢠Refer to http://www.amd.com/us/products/technologies/dual-graphics/ Pages/dual-graphics.aspx#3 for the discrete GPUs which support Dual Graphics technology . Expansion slots 1 x PCIe 3.0/2.0 x16 slot* 1 x PCIe 2.0 x1 slot 1 x PCI slot ⢠Only FM2 processors support PCIe 3.0. Package contents Check your motherboard package for the following items. Motherboard ASUS A55BM-K motherboard Cables 2 x S erial A T A 3.0 Gb/ s cables Accessories 1 x I/O Shield Application DVD Support DVD Documentation User Guide If any of the above items is damaged or missing, contact your retailer .
vii A55BM-K speciîcations summary Storage / RAID AMD ® A55 FCH: - 4 x Serial A T A 3.0Gb/s connectors (dark brown) support RAID 0, RAID 1, RAID 10, and JBOD conîgurations LAN Realtek ® 81 1 1G PCIe Gigabit LAN controller Audio Realtek ® ALC887-VD 8-channel High Deînition Audio CODEC ⢠Use a chassis with HD audio module in the front panel to support a 7.1-channel audio output. USB AMD ® A55 FCH: - 8 x USB 2.0 ports (4 ports at the back panel, 4 ports at mid-board) ASUS unique features ASUS DIGI VRM - 3 1 Phase digital power design ASUS Enhanced DRAM Overcurrent Protection - Short circuit damage protection ASUS ESD Guards - Strong ESD protection for extended component lifespan ASUS Stainless Steel Back I/O - 3x More durable corrosion-resistant coating ASUS Exclusive Features - ASUS EPU - ASUS Network iControl - ASUS AI Charger - ASUS AI Suite III - ASUS Anti-Surge Protection ASUS Quiet Thermal Solution - ASUS Fanless Design: Stylish Heatsink Solution - ASUS Fan Xpert ASUS EZ DIY - ASUS UEFI BIOS EZ Mode - ASUS CrashFree BIOS 3 - ASUS EZ Flash 2 - ASUS MyLogo 2⢠Back Panel I/O ports 1 x PS/2 mouse port (green) 1 x PS/2 keyboard port (purple) 1 x DVI-D port 1 x VGA output port 1 x LAN (RJ-45) port 4 x USB 2.0/1.1 ports 8-channel audio I/O ports (3-jack) (continued on the next page)
viii A55BM-K speciîcations summary Speciîcations are subject to change without notice. Internal I/O connectors 2 x USB 2.0 connectors support additional 4 USB 2.0 ports 1 x COM connector 4 x SA T A 3.0Gb/s connectors 1 x System panel connector 1 x Internal Speaker connector 1 x CPU fan connector (4-pin) 1 x S/PDIF output connector 1 x Chassis fan connector (4-pin) 1 x Front panel audio connector 1 x 24-pin EA TX power connector 1 x 4-pin A TX 12V power connector BIOS 64 Mb Flash ROM, UEFI AMI BIOS, PnP , DMI 2.0, WfM 2.0, SM BIOS 2.7, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFreen BIOS 3, F12 Printscreen function, F3 Shortcut function and ASUS DRAM SPD (Serial Presence Detect) memory information Support DVD Drivers ASUS Update ASUS utilities Anti-Virus software (OEM version) Operating System Support Windows ® 8.1 / 8.1 64bit Windows ® 8 / 8 64bit Windows ® 7 / 7 64bit Windows ® Vista / V ista 64-bit Windows ® XP Form factor uA TX form factor: 8.9 in x 7.2 in (22.6 cm x 18.3 cm)
ASUS A55BM-K 1-1 Product introduction 1 1.1 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. Standby Power 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 should 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 A55BM-K A55BM-K Onboard LED
1-2 Chapter 1: Product introduction A55BM-K Place this side towards the rear of the chassis 1.2 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. 1.2.1 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 . 1.2.2 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.
ASUS A55BM-K 1-3 1.2.3 Motherboard layout Connectors/Jumpers/Slots/LED Page 1. Keyboard and USB device wake up (3-pin KB_USBPWB) 1-13 2. A TX power connectors (24-pin EA TXPWR, 4-pin A TX12V) 1-16 3. AMD FM2 socket 1-4 4. CPU and chassis fan connectors (4-pin CPU_F AN and 4-pin CHA_FAN) 1-15 5. DDR3 DIMM slots 1-7 6. Speaker connector (4-pin SPEAKER) 1-18 7. SA T A 3.0Gb/s connectors (7-pin SA T A3G_1~4) 1-17 8. System panel connector (10-1 pin F_P ANEL) 1-18 9. USB 2.0 connectors (10-1 pin USB34, USB56) 1-20 10. Clear RTC RAM (3-pin CLRTC) 1-1 1 1 1. USB device wake-up (3-pin USBPWF) 1-12 12. Digital audio connector (4-1 pin SPDIF_OUT) 1-17 13. Serial port connector (10-1 pin COM) 1-20 14. Standby power LED (SB_PWR) 1-1 15. Front panel audio connector (10-1 pin AAFP) 1-19 A55BM-K PCIEX16 PCIEX1_1 PCI1 F_PANEL SPEAKER USBPWF COM CLRTC KB_USBWB USB56 USB34 AAFP SPDIF_OUT ATX12V EATXPWR CPU_FAN CHA_FAN BATTERY Super I/O ALC 887 RTL 8111G ASM 1042 64Mb BIOS SB_PWR 22.6cm(8.9in) AMD ® A55 DDR3 DIMM_A1 (64bit, 240-pin module) DDR3 DIMM_B1 (64bit, 240-pin module) SATA3G_1 SATA3G_2 SATA3G_3 SATA3G_4 AUDIO KBMS LAN_USB12 USB1112 18.3cm(7.2in) DVI_VGA SOCKET FM2 DIGI VRM 3 2 1 5 4 2 6 8 7 9 10 11 12 13 15 14 7
1-4 Chapter 1: Product introduction Ensure that you use an APU designed for the FM2 socket. The APU îts in only one correct orientation. DO NOT force the APU into the socket to prevent bending the pins and damaging the APU! 1.3 Accelerated Processing Unit (APU) This motherboard comes with an FM2 socket designed for AMD ® A-series accelerated processors with AMD ® Radeon⢠HD 7000/8000 series graphics. 1.3.1 Installing the APU 1 2 A55BM-K A55BM-K CPU socket FM2
ASUS A55BM-K 1-5 4 3 1.3.2 APU heatsink and fan assembly installation Apply the Thermal Interface Material to the APU heatsink and APU before you install the heatsink and fan if necessary . 1 2 T o install the APU heatsink and fan assembly
1-6 Chapter 1: Product introduction 5 3 4 T o uninstall the APU heatsink and fan assembly 1 2 3 5 4
ASUS A55BM-K 1-7 1.4 System memory 1.4.1 Overview The motherboard comes with two 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 Channel B DIMM_B1 A55BM-K A55BM-K 240-pin DDR3 DIMM sockets DIMM_A1 DIMM_B1
1-8 Chapter 1: Product introduction 1.4.2 Memory conîgurations Y ou may install 1GB, 2GB, 4GB, and 8GB unbuffered non-ECC DDR3 DIMMs into the DIMM sockets. ⢠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. ⢠Always install DIMMs with the same CAS latency . For optimal compatibility , we recommend that you install memory modules of the same version or date code (D/C) from the same vendor . Check with the retailer to get the correct memory modules. ⢠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: - Install a maximum of 3GB system memory if you are using a 32-bit Windows® OS. - Use a 64-bit Windows ® OS if you want to install 4GB or more memory on the motherboard. ⢠This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less. ⢠The maximum 32GB memory capacity can be supported with 16GB or above DIMMs. ASUS will update the memory QVL once the DIMMs are available in the market. ⢠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 2.5 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 (2 DIMMs) or overclocking condition. ⢠Refer to www .asus.com for the latest Memory QVL (Qualiîed V endors List).
ASUS A55BM-K 1-9 1.4.3 Installing a DIMM 1 2 3 T o remove a DIMM B A
1-10 Chapter 1: Product introduction 1.5 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. 1.5.1 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 . 1.5.2 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. 1.5.3 PCI slot The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI speciîcations.
ASUS A55BM-K 1-1 1 1.5.4 PCI Express x1 slot This motherboard supports PCI Express 2.0 x1 network cards, SCSI cards, and other cards that comply with the PCI Express speciîcations. 1.5.5 PCI Express x16 slot This motherboard supports one PCI Express 3.0/2.0 x16 graphics cards that comply with the PCI Express speciîcations. IRQ assignments for this motherboard A B C D E F G H PCIEx16_1 â â shared â â â â â PCIEx1_1 shared â â â â â â â PCI1 slot â â â â shared â â â Realtek LAN controller â â shared â - â â â HD audio shared â â â â â â â SA T A controller â â â shared â â â â On Chip USB EHCI 1/2/3 â shared â â â â â â On Chip USB OHCI 1/2/3/4 â â shared â â â â â 1.6 Jumpers 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. A55BM-K A55BM-K Clear RTC RAM 1 2 2 3 Normal (Default) Clear RTC CLRTC
1-12 Chapter 1: Product introduction 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. 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. 2. USB device wake-up (3-pin USBPWF) Set these jumpers to 5V to wake up the computer from S1 sleep mode (CPU stopped, DRAM refreshed, system running in low power mode) using the connected USB devices. Set to 5VSB to wake up from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh, power supply in reduced power mode). ⢠The USB device wake-up feature requires a power supply that can provide 500mA on the 5VSB lead for each USB port; otherwise, the system would not power up. ⢠The total current consumed must NOT exceed the power supply capability ( 5VSB) whether under normal condition or in sleep mode. A55BM-K A55BM-K USB device wake up 2 1 2 3 5V (Default) 5VSB USBPWF
ASUS A55BM-K 1-13 3. Keyboard and USB device wake up (3-pin KB_USBPWB) This jumper allows you to enable or disable the keyboard and USB device wake-up feature. When you set this jumper to pins 2-3 ( 5VSB), you can wake up the computer by pressing a key on the keyboard. This feature requires an A TX power supply that can supply at least 1A on the 5VSB lead, and a corresponding setting in the BIOS. 1.7 Connectors 1.7.1 Rear panel connectors 1. PS/2 Mouse port (green). This port is for a PS/2 mouse. 2. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices. 3. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub. A55BM-K A55BM-K Keyboard and USB device wake up 1 2 2 3 5V 5VSB (Default) KB_USBPWB 4 5 3 6 7 1 9 2 8
1-14 Chapter 1: Product introduction 4. Line In port (light blue). This port connects to the tape, CD, DVD player, or other audio sources. 5. Line Out port (lime). This port connects to a headphone or a speaker . In the 4.1, 5.1, and 7.1-channel conîgurations, the function of this port becomes Front Speaker Out. 6. Microphone port (pink). This port connects to a microphone. Refer to the audio conîguration table below for the function of the audio ports in 2.1, 4.1, 5.1, or 7.1-channel conîguration. Audio 2.1, 4.1, 5.1, or 7.1-channel conîguration Port Headset 2.1- channel 4.1-channel 5.1-channel 7.1-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 a 7.1-channel audio output: Use a chassis with HD audio module in the front panel to support a 7.1-channel audio output. 7. USB 2.0 ports. These 4-pin Universal Serial Bus (USB) ports are for USB 2.0/1.1 devices. 8 . DVI-D port. This port is for any DVI-D compatible device. DVI-D canât be converted to output RGB Signal to CRT and isnât compatible with DVI-I. 9. PS/2 Keyboard port (purple). This port is for a PS/2 keyboard. LAN port SPEED LED ACT/LINK LED Activity/Link LED Speed LED Status Description Status Description Off No link OFF 10Mbps connection Orange Linked ORANGE 100Mbps connection Orange (Blinking) Data activity GREEN 1Gbps connection Orange (Blinking then steady) Ready to wake up from S5 mode LAN port LED indications
ASUS A55BM-K 1-15 1.7.2 Internal connectors 1. CPU and chassis fan connectors (4-pin CPU_F AN, and 4-pin CHA_F AN) Conn ect th e fan c ables to the fan co nnecto rs o n the motherb oard, ensuring tha t the blac k wire of eac h cabl e match es the groun d pi n of t he conn ector. 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. ⢠The CPU_F AN connector supports a CPU fan of maximum 2A (24 W) fan power . ⢠The CPU_F AN and CHA_FAN connectors support the ASUS Fan Xpert feature. A55BM-K A55BM-K Fan connectors CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND CHA FAN PWM CHA FAN IN CHA FAN PWR GND CHA_FAN
1-16 Chapter 1: Product introduction 2. A TX power connectors (24-pin EA TXPWR, 4-pin A TX12V) These connectors are for an A TX power supply . The plugs from the power supply are designed to ît these connectors in only one orientation. Find the proper orientation and push down îrmly until the connectors completely ît. ⢠We recommend that you use an A TX 12V Speciîcation 2.0-compliant power supply unit (PSU) with a minimum of 300W power rating. This PSU type has 24-pin and 4-pin power plugs. ⢠If you intend to use a PSU with 20-pin and 4-pin power plugs, ensure that the 20-pin power plug can provide at least 15 A on 12 V and that the PSU has a minimum power rating of 300W . The system may become unstable or may not boot up if the power is inadequate. ⢠DO NOT forget to connect the 4-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 or when you intend to install additional 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. A55BM-K A55BM-K ATX 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 ATX12V PIN 1 12V DC 12V DC GND GND
ASUS A55BM-K 1-17 3. Serial A T A 3.0 Gb/s connectors (7-pin SA T A3G 1~4) These connectors are for the Serial A T A 3.0 Gb/s signal cables for Serial A T A hard disk drives and optical disc drives. If you installed Serial A T A hard disk drives, you can create a RAID 0, RAID 1, or RAID 10 conîguration through the onboard controller . ⢠These connectors are set to AHCI mode by default. If you intend to create a Serial A T A RAID set using these connectors, set the type of the SA T A connectors in the BIOS to [RAID] . ⢠Y ou must install Windows ® XP Service Pack 3 or later version before using Serial A T A hard disk drives. The Serial A T A RAID feature is available only if you are using Windows ® XP SP3 or later version. ⢠When using hot-plug and NCQ, set the type of the SA T A connectors in the BIOS to [AHCI] . 4. Digital audio connector (4-1 pin SPDIF_OUT) This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. SATA3G_2 GND RSATA_TXP1 RSATA_TXN1 GND RSATA_RXN1 RSATA_RXP1 GND SATA3G_1 GND RSATA_TXP2 RSATA_TXN2 GND RSATA_RXN2 RSATA_RXP2 GND SATA3G_3 GND RSATA_TXP3 RSATA_TXN3 GND RSATA_RXN3 RSATA_RXP3 GND SATA3G_4 GND RSATA_RXP4 RSATA_RXN4 GND RSATA_TXN4 RSATA_TXP4 GND A55BM-K A55BM-K SATA 3.0Gb/s connectors The S/PDIF module is purchased separately . SPDIF_OUT 5V SPDIFOUT GND A55BM-K A55BM-K Digital audio connector
1-18 Chapter 1: Product introduction 5. System panel connector (10-1 pin F_P ANEL) This connector supports several chassis-mounted functions. ⢠System power LED (2-pin PWR_LED) 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 HDD_LED) This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable to this connector . The HDD LED lights up or îashes when data is read from or written to the HDD. ⢠A TX power button/soft-off button (2-pin PWR_BTN) 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 . 6. Speaker connector (4-pin SPEAKER) The 4-pin connector is for the chassis-mounted system warning speaker . The speaker allows you to hear system beeps and warnings. A55BM-K PIN 1 PWR BTN PWR_LED PWR_LED- PWR GND HDD_LED HDD_LED- Ground HWRST# (NC) F_PANEL PWR LED HDD_LED RESET A55BM-K System panel connector A55BM-K A55BM-K Speaker Out Connector 5V GND GND Speaker Out SPEAKER PIN 1
ASUS A55BM-K 1-19 ⢠We recommend that you connect a high-deînition front panel audio module to this connector to avail of the motherboard 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 to [HD] . ⢠The front panel audio I/O module is purchased separately . 7. Front panel audio connector (10-1 pin AAFP) This connector is for a chassis-mounted front panel audio I/O module that supports either High Deînition Audio or AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector . A55BM-K A55BM-K Front panel audio connector AAFP PIN 1 AGND NC 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
1-20 Chapter 1: Product introduction 8. USB 2.0 connectors (10-1 pin USB34, USB56) 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 480Mbps connection speed. Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard! The USB 2.0 module is purchased separately . 9. Serial port connector (10-1 pin COM) 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 . A55BM-K A55BM-K USB2.0 connectors PIN 1 USB 5V USB_P5- USB_P5 GND NC USB 5V USB_P6- USB_P6 GND USB56 USB34 PIN 1 USB 5V USB_P3- USB_P3 GND NC USB 5V USB_P4- USB_P4 GND A55BM-K A55BM-K Serial port connectors PIN 1 COM DCD TXD GND RTS RI RXD DTR DSR CTS
ASUS A55BM-K 1-21 1.8 Software support 1.8.1 Installing an operating system This motherboard supports Windows ® Vista / 64-bit Windows ® Vista /Windows ® XP / Windows ® 7 / 64-bit Windows ® 7 / Windows ® 8 /64-bit Windows ® 8 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 before installing the drivers for better compatibility and system stability . ⢠Only motherboards installed with an AMD Trinity APU support Windows ® Vista / 64bit Windows ® Vista operaing system. 1.8.2 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 into the optical drive. If Autorun is enabled in your computer , the DVD automatically displays the Specials screen which contains the unique features of ASUS motherboard. Click Drivers, Utilities, Make Disk, Manual, Contact and Specials tabs to display their respective menus. Click an item to install Click an icon to display Support DVD/motherboard information
1-22 Chapter 1: Product introduction
ASUS A55BM-K 2-1 BIOS information 2 2.1 Managing and updating your BIOS 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 . 2.1.1 EZ Update EZ Update is a utility that allows you to automatically update your motherboardâs softwares, drivers and the BIOS version easily . With this utlity , you can also manually update the saved BIOS and select a boot logo when the system goes into POST . T o la unch EZ Upd ate , c lick EZ Upd ate on the A I Su ite 3 m ain me nu b ar. Click to automatically update your motherboardâs driver , software and îrmware Click to înd and select the BIOS from île Click to select a boot logo Click to update the BIOS EZ Update requires an Internet connection either through a network or an ISP (Internet Service Provider).
2-2 Chapter 2: Getting started 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. 2. Enter the Advanced Mode of the BIOS setup program. Go to the T ool menu to select ASUS EZ Flash 2 Utility and press <Enter> to enable it. 3. Press <T ab> to switch to the Drive îeld. 4. Press the Up/Down arrow keys to înd the USB îash disk that contains the latest BIOS, and then press <Enter>. 5. Press <T ab> to switch to the Folder Info îeld. 6. Press the Up/Down arrow keys to înd the BIOS île, and then press <Enter> to perform the BIOS update process. Reboot the system when the update process is done. ⢠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! 2.1.3 ASUS CrashFree BIOS 3 utility The ASUS CrashFree BIOS 3 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 USB îash drive that contains the updated BIOS île. ⢠Before using this utility , rename the BIOS île in the removable device into A55BMK.CAP . ⢠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.
ASUS A55BM-K 2-3 Recovering the BIOS T o recover the BIOS: 1. Turn on the system. 2. Insert the support DVD to the optical drive or the USB îash drive that contains the BIOS île to the USB port. 3. The utility automatically checks the devices for the BIOS île. When found, the utility reads the BIOS île and enters ASUS EZ Flash 2 utility automatically . 4. The system requires you to enter BIOS Setup to recover BIOS setting. T o ensure system compatibility and stability , we recommend that you press <F5> to load default BIOS values. DO NOT shut down or reset the system while updating the BIOS! Doing so can cause system boot failure! 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. 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. 3. Turn of f the computer and disconnect all SA T A hard disk drives (optional).
2-4 Chapter 2: Getting started 3. Select the USB îash drive as the boot device. The DOS screen appears. 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>. 2. The BIOS Updater screen appears as below . ASUSTek BIOS Updater for DOS V1.30 BOARD: A55BM-K VER: 0305 DATE: 11/14/2013 A55BMK.CAP 8390656 2013-11-14 17:30:48 Booting the system in DOS environment 1. Insert the DOS-bootable USB îash drive with the latest BIOS île and BIOS Updater to your computer âs USB port. 2. Boot your computer . When the ASUS Logo appears, press <F8> to show the BIOS Boot Device Select Menu . A:\
ASUS A55BM-K 2-5 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. 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 1.30 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 Optimized Defaults item under the Exit menu. Refer to section 2.10 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. ⢠⢠⢠â¢
2-6 Chapter 2: Getting started 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 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. ⢠Ensure that a USB mouse is connected to your motherboard if you want to use the mouse to control the BIOS setup program. ⢠If the system becomes unstable after changing any BIOS setting, load the default settings to ensure system compatibility and stability . Select the Load Optimized Defaults item under the Exit menu or press hotkey F5. See section 2.10 Exit Menu for details. ⢠If the system fails to boot after changing any BIOS setting, try to clear the CMOS and reset the motherboard to the default value. See section 1.6 Jumpers for information on how to erase the RTC RAM. BIOS menu screen The BIOS setup program can be used under two modes: EZ Mode and Advanced Mode. Y ou can change modes from the Exit menu or from the Exit/Advanced Mode button in the EZ Mode/Advanced Mode screen. EZ Mode By default, the EZ Mode screen appears when you enter the BIOS setup program. The EZ Mode provides you an overview of the basic system information, and allows you to select the display language, system performance mode and boot device priority . T o access the Advanced Mode, click Exit/Advanced Mode or press F7 for the advanced BIOS settings. The default screen for entering the BIOS setup program can be changed.
ASUS A55BM-K 2-7 ⢠The boot device options vary depending on the devices you installed to the system. ⢠The Boot Menu(F8) button is available only when the boot device is installed to the system. Exits the BIOS setup program without saving the changes, saves the changes and resets the system, or enters the Advanced Mode Selects the display language of the BIOS setup program Displays the CPU temperature, CPU voltage output, DRAM information and CPU/chassis fan speed Power Saving mode Normal mode Loads optimized default Selects the boot device priority Displays the system properties of the selected mode on the right hand side Selects the Advanced mode functions Displays the Advanced mode menus SA T A information Selects the boot device priority
2-8 Chapter 2: Getting started Advanced Mode The Advanced Mode provides advanced options for experienced end-users to conîgure the BIOS settings. The îgure below shows an example of the Advanced Mode . Refer to the following sections for the detailed conîgurations. T o access the EZ Mode, click Exit, then select ASUS EZ Mode or press F7. Menu bar The menu bar on top of the screen has the following main items: My Favorites For saving the frequently-used system settings and conîguration Main For changing the basic system conîguration Ai T weaker For changing the overclocking settings Advanced For changing the advanced system settings Monitor For displaying the system temperature, power status, and changing the fan settings Boot For changing the system boot conîguration T ool For conîguring options for special functions Exit For selecting the exit options and loading default settings Navigation keys General help Menu bar Submenu item Conîguration îelds Menu items Pop-up window Back button Last modiîed settings Quick note
ASUS A55BM-K 2-9 Adding items to My Favorites T o add frequently-used BIOS items to My Favorites: 1. Use the arrow keys to select an item that you want to add. When using a mouse, hover the pointer to the item. 2. Press <F4> on your keyboard or right-click on your mouse to add the item to My Favorites page. Y ou cannot add the following items to My Favorites: ⢠Items with submenu options ⢠User-conîgurable items such as language and boot device order ⢠Conîguration items such as Memory SPD Information, system time and date 2.3 My Favorites MyFavorites is your personal space where you can easily save and access your favorite BIOS items.
2-10 Chapter 2: Getting started 2.4 Main menu The Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu provides you an overview of the basic system information, and allows you to set the system date, time, language, and security settings. ⢠If you have forgotten your BIOS password, erase the CMOS Real T ime Clock (RTC) RAM to clear the BIOS password. See section 1.6 Jumpers for information on how to erase the RTC RAM. ⢠The Administrator or User Password items on top of the screen show the default Not Installed . After you set a password, these items show Installed.
ASUS A55BM-K 2-1 1 2.5 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 section vary depending on the CPU and DIMM model you installed on the motherboard. Scroll down to display the other items.
2-12 Chapter 2: Getting started 2.6 Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices. Be cautious when changing the settings of the Advanced menu items. Incorrect îeld values can cause the system to malfunction. 2.7 Monitor menu The Monitor menu displays the system temperature/power status, and allows you to change the fan settings.
ASUS A55BM-K 2-13 2.8 Boot menu The Boot menu items allow you to change the system boot options. Scroll down to display the other items.
2-14 Chapter 2: Getting started 2.9 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. 2.10 Exit menu The Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard your changes to the BIOS items. Y ou can access the EZ Mode from the Exit menu.
A55BM-K A-1 Appendices 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. 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. ⢠⢠⢠⢠⢠â¢
A-2 Appendices IC: Canadian Compliance Statement Complies with the Canadian ICES-003 Class B speciîcations. This device complies with RSS 210 of Industry Canada. This Class B device meets all the requirements of the Canadian interference-causing equipment regulations. This device complies with Industry Canada license exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Cut appareil numérique de la Classe B est conforme à la norme NMB-003 du Canada. Cet appareil numérique de la Classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada. Cet appareil est conforme aux normes CNR exemptes de licence dâIndustrie Canada. Le fonctionnement est soumis aux deux conditions suivantes : (1) cet appareil ne doit pas provoquer dâinterférences et (2) cet appareil doit accepter toute interférence, y compris celles susceptibles de provoquer un fonctionnement non souhaité de lâappareil. 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. VCCI: Japan Compliance Statement VCCI Class B Statement KC: Korea W arning Statement
A55BM-K A-3 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://csr .asus.com/english/REACH.htm. 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. ASUS Recycling/T akeback Services ASUS recycling and takeback programs come from our commitment to the highest standards for protecting our environment. We believe in providing solutions for you to be able to responsibly recycle our products, batteries, other components as well as the packaging materials. Please go to http://csr .asus.com/english/T akeback.htm for detailed recycling information in different regions.
A-4 Appendices 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 http://www .asus.com.tw T echnical Support T elephone 86-21-3842-991 1 Fax 86-21-5866-8722, ext. 9101# Online support http://support.asus.com/techserv/techserv .aspx ASUS COMPUTER INTERNA TIONAL (America) Address 800 Corporate Way , Fremont, CA 94539, USA T elephone 1-510-739-3777 Fax 1-510-608-4555 Web site http://usa.asus.com T echnical Support T elephone 1-812-284-0883 General support 1-812-282-2787 Online support http://support.asus.com/techserv/techserv .aspx ASUS COMPUTER GmbH (Germany and Austria) Address Harkort Str . 21-23, D-40880 Ratingen, Germany Fax 49-2102-959931 Web site http://www .asus.com/de Online contact http://eu-rma.asus.com/sales T echnical Support T elephone 49-2102-5789555 Support Fax 49-2102-95991 1 Online support http://support.asus.com/techserv/techserv .aspx
A55BM-K A-5 DECLARATION OF CONFORMITY Per FCC Part 2 Section 2. 1077(a) Responsible Part y Name: Asus Computer International Address: 800 Corporate Way, Fremont , CA 94539. Phone/Fax No: (510)739-3777/(510)608-4555 hereby de clares that the product Product Name : Motherboard Model Number : A55BM-K Conforms to the following specifications: FC C P art 15 , S ubp ar t B , Unintentional Radiators Supplementary Information: Thi s devi ce co mpl ies wi th par t 15 of the FC C Rul es. Op erat ion is s ubjec t to th e fol lowi ng two co nditi ons: (1) This devi ce may no t ca use ha rmf ul inte rfer ence , and (2) th is dev ice mu st acc ept a ny inte rfer ence rec eive d, inc ludin g inte rfer ence tha t ma y c ause un desi red o pera tion . Representative Personâs Name : Steve Chang / President Signature : Date : Nov. 25, 2013 Ver. 120601 EC Declaration of Conformity We, the undersigned, Manufacturer: ASUSTeK COMPUTER INC. Address, City: 4F, No. 150, LI-TE Rd., PEITOU, TAIPEI 112, TAIWAN 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 : A55BM- K conform with the essential requi rements of the following directives: 2004/108/EC-EMC Directiv e EN 55022:2010 AC:2011 EN 61000-3-2:2006 A2:2009 EN 55013:2001 A1:2003 A2:2006 EN 55024:2010 EN 61000-3-3:2008 EN 55020:2007 A11:2011 1999/5/EC-R &TTE Directiv e EN 300 328 V1.7.1(2006-10) EN 300 440-1 V1.6.1(2010-08) EN 300 440-2 V1.4.1(2010-08) EN 301 511 V9.0.2(2003-03) EN 301 908-1 V5.2.1(2011-05) EN 301 908-2 V5.2.1(2011-07) EN 301 893 V1.6.1(2011-11) EN 302 544-2 V1.1.1(2009-01) EN 302 623 V1.1.1(2009-01) EN 50360:2001 EN 62479:2010 EN 50385:2002 EN 62311:2008 EN 301 489-1 V1.9.2(2011-09) EN 301 489-3 V1.4.1(2002-08) EN 301 489-4 V1.4.1(2009-05) EN 301 489-7 V1.3.1(2005-11) EN 301 489-9 V1.4.1(2007-11) EN 301 489-17 V2.2.1(2012-09) EN 301 489-24 V1.5.1(2010-09) EN 302 326-2 V1.2.2(2007-06) EN 302 326-3 V1.3.1(2007-09) EN 301 357-2 V1.4.1(2008-11) EN 302 291-1 V1.1.1(2005-07) EN 302 291-2 V1.1.1(2005-07) 2006/95/EC-LVD Directive EN 60950-1 / A12:201 1 EN 60065:2002 / A12:2011 2009/125/EC-ErP Directive Regulation (EC) No. 1275/2008 Regulation (EC) No. 642/2009 Regulation (EC) No. 278/2009 Regulation (EC) No. 617/2013 2011/65/EU-RoHS Directive Ver. 130816 CE marking Declaration Date: 25/1 1 /2013 Y ear to be gin affixing CE marking:2013 Position : CEO Name : Jerry Shen Signature : __________ (EC conformity marking)