Asus MEL-M 370 User Manual

R MEL-M Socket 370 microA TX Motherboard USER’S MANUAL
2 ASUS MEL-M User’ s Manual USER'S NOTICE Product Name: ASUS MEL-M Manual Revision: 1.03 E329 Release Date: February 1999 No part of this manual, including the products and software described in it, may be repro- duced, 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. (“ASUS”). ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT W ARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED T O THE IMPLIED W ARRANTIES OR CONDITIONS OF MERCHANT ABILITY OR FITNESS FOR A P AR- TICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT , SPECIAL, INCIDEN- T AL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DA T A, INTERRUPTION OF BUSI- NESS 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 . Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair , modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. Products and corporate names appearing in this manual may or may not be registered trade- marks or copyrights of their respective companies, and are used only for identification or explanation and to the owners’ benefit, without intent to infringe. • Intel, LANDesk, and Pentium are registered trademarks of Intel Corporation. • IBM and OS/2 are registered trademarks of International Business Machines. • Symbios is a registered trademark of Symbios Logic Corporation. • W indows and MS-DOS are registered trademarks of Microsoft Corporation. • XGstudio and Soft Synthesizer is a trademark of the Y amaha Corporation. • Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated. The product name and revision number are both printed on the product itself. Manual revi- sions are released for each product design represented by the digit before and after the period of the manual revision number . Manual updates are represented by the third digit in the manual revision number . For previous or updated manuals, BIOS, drivers, or product release information, contact ASUS at http://www .asus.com.tw or through any of the means indicated on the following page. SPECIFICA TIONS AND INFORMA TION CONT AINED IN THIS MANUAL ARE FUR- NISHED FOR INFORMA TIONAL USE ONL Y , AND ARE SUBJECT T O CHANGE A T ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COM- MITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THA T MA Y APPEAR IN THIS MANUAL, INCLUD- ING THE PRODUCTS AND SOFTW ARE DESCRIBED IN IT . Copyright © 1999 ASUST eK COMPUTER INC. All Rights Reserved.
ASUS MEL-M User’ s Manual 3 ASUS CONT ACT INFORMA TION ASUST eK COMPUTER INC. (Asia-Pacific) Marketing Address: 150 Li-T e Road, Peitou, T aipei, T aiwan 1 12 T elephone: 886-2-2894-3447 Fax: 886-2-2894-3449 Email: info@asus.com.tw T echnical Support T el (English): 886-2-2894-3447 ext. 706 T el (Chinese): 886-2-2894-3447 ext. 701 Fax: 886-2-2895-9254 Email: tsd@asus.com.tw Newsgroup: news2.asus.com.tw WWW : www .asus.com.tw FTP: ftp.asus.com.tw/pub/ASUS ASUS COMPUTER INTERNA TIONAL (America) Marketing Address: 6737 Mowry A venue, Mowry Business Center , Building 2 Newark, CA 94560, USA Fax: 1-510-608-4555 Email: info-usa@asus.com.tw T echnical Support Fax: 1-510-608-4555 BBS: 1-510-739-3774 Email: tsd-usa@asus.com.tw WWW : www .asus.com FTP: ftp.asus.com.tw/pub/ASUS ASUS COMPUTER GmbH (Europe) Marketing Address: Harkort Str . 25, 40880 Ratingen, BRD, Germany T elephone: 49-2102-44501 1 Fax: 49-2102-442066 Email: sales@asuscom.de T echnical Support Hotline: 49-2102-499712 BBS: 49-2102-448690 Email: tsd@asuscom.de WWW : www .asuscom.de FTP: ftp.asuscom.de/pub/ASUSCOM
4 ASUS MEL-M User’ s Manual CONTENTS I. INTRODUCTION .............................................................................. 7 How this manual is organized ............................................................. 7 Item Checklist ..................................................................................... 7 II. FEA TURES ....................................................................................... 8 The ASUS MEL-M Motherboard ....................................................... 8 Parts of the ASUS MEL-M Motherboard ......................................... 1 1 III. HARDW ARE SETUP .................................................................... 12 ASUS MEL-M Motherboard Layout ................................................ 12 Hardware Setup Steps ....................................................................... 14 1. Motherboard Settings .................................................................... 14 2. System Memory (DIMM) ............................................................ 17 DIMM Memory Installation .................................................. 18 3. Central Processing Unit (CPU) .................................................... 19 4. Expansion Cards ........................................................................... 21 Expansion Card Installation Procedure ................................. 21 Assigning IRQs for Expansion Cards .................................... 21 Assigning DMA Channels for ISA Cards .............................. 22 ISA Cards and Hardware Monitor ......................................... 22 5. External Connectors ..................................................................... 23 Power Connection Procedures .......................................................... 33 Flash Memory W riter Utility ............................................................ 34 IV . BIOS SETUP ................................................................................... 34 Main Menu .................................................................................. 34 Managing and Updating Y our Motherboard’ s BIOS ................... 36 6. BIOS Setup .................................................................................. 37 Load Defaults ........................................................................ 38 Standard CMOS Setup ................................................................ 38 Details of Standard CMOS Setup: ......................................... 38 BIOS Features Setup ................................................................... 41 Details of BIOS Features Setup ............................................. 41 Chipset Features Setup ................................................................ 44 Details of Chipset Features Setup .......................................... 44 Power Management Setup ........................................................... 47 Details of Power Management Setup .................................... 47 PNP and PCI Setup ..................................................................... 50 Details of PNP and PCI Setup ............................................... 50 Load BIOS Defaults .................................................................... 52 Load Setup Defaults .................................................................... 52 Supervisor Password and User Password ................................... 53 IDE HDD Auto Detection ........................................................... 54
ASUS MEL-M User’ s Manual 5 CONTENTS Save & Exit Setup ....................................................................... 55 Exit W ithout Saving .................................................................... 55 V . SUPPOR T CD ................................................................................. 57 A. PC Probe ...................................................................................... 61 B. Audio Driver ................................................................................. 67 C. Y amaha XGstudio ........................................................................ 69 D. Ystation ........................................................................................ 75 APPENDIX ........................................................................................... 83 DMI Utility ....................................................................................... 83 ASUS CIDB Chassis Intrusion Sensor Module ................................ 87 ASUS PCI-L101 Fast Ethernet Card ................................................ 89
6 ASUS MEL-M User’ s Manual FCC & DOC COMPLIANCE Federal Communications Commission Statement This device complies with FCC Rules Part 15. Operation is subject to the following two conditions: • This device may not cause harmful interference, and • This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installa- tion. This equipment generates, uses and can radiate radio frequency ener gy and, if not installed and used in accordance with manufacturer ’ s 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 interfer - ence by one or more of the following measures: • Re-orient or relocate the receiving antenna. • Increase the separation between the equipment and receiver . • Connect the equipment to an outlet on a circuit dif ferent from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. W ARNING! The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations. Changes or modifica- tions to this unit not expressly approved by the party responsible for compliance could void the user ’ s authority to operate this equipment. Canadian Department of Communications Statement This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.
ASUS MEL-M User’ s Manual 7 I. INTRODUCTION I. INTRODUCTION Sections/Checklist How this manual is organized This manual is divided into the following sections: I. Intr oduction Manual information and checklist II. Featur es Information and specifications concerning this product III. Hardwar e Setup Instructions on setting up the motherboard IV . BIOS Setup Instructions on setting up the BIOS software V . Softwar e Setup Information on setting up the included support software VI . Softwar e Refer ence Reference material for the included support software Item Checklist Check that your package is complete. If you discover damaged or missing items, please contact your retailer . (1) ASUS Motherboard (1) IDE ribbon cable for master and slave drives (1) Ribbon cable for (1) 5.25” and (2) 3.5” floppy disk drives (1) Bag of spare jumper caps (1) Support CD with drivers and utilities (1) This Motherboard User’ s Manual ASUS IrDA-compliant infrared module (optional) ASUS chassis intrusion sensor module (optional) ASUS PCI-L101 W ake-On-LAN 10/100 fast ethernet card (optional)
8 ASUS MEL-M User’ s Manual II. FEA TURES Features II. FEA TURES The ASUS MEL-M Motherboard The ASUS MEL-M motherboard is carefully designed for the demanding PC user who wants many intelligent features in a small package. Specifications • Intel Processor Support: Supports Intel’ s Celeron processor designed for the Socket 370 and packaged in a Plastic Pin Grid Array (PPGA). • Intel AGPset: Features Intel’ s 440LX AGPset with I/O subsystems and front side bus (FSB) platform for 66MHz internal bus. • Enhanced ACPI & Anti-Boot V irus BIOS: Programmable BIOS (Flash EEPROM), of fering enhanced ACPI for W indows 98 compatibility , built-in hard- ware-based virus protection, and autodetection of most devices for virtually au- tomatic setup. • V ersatile Memor y Support: Equipped with three DIMM sockets to support Intel PC66-compliant SDRAMs (8, 16, 32, 64, 128, or 256MB) up to 768MB. • AGP Slot: Supports an Accelerated Graphics Port card for high performance, component level interconnect tar geted at 3D graphical display applications sup- porting a 66MHz bus. • Y amaha Audio with AC’97 Codec (optional): Provides a PCI audio chipset with 3D surround and positioning capabili ty and an 18-bit stereo, full duplex, audio codec that conforms to AC’97 analog component specfications. • PCI & ISA Expansion: Provides three 32-bit PCI expansion slots and one 16- bit ISA expansion slot . • W ake-On-LAN: Supports W ake-On-LAN activity through an optional ASUS PCI-L101 Fast Ethernet card or a similar ethernet card. • SB-Link™: Features Creative’ s SB-Link™, allowing SB16 compatibility , us- ing Intel’ s PC-PCI and serialized IRQ protocols, to A WE64D or compatible PCI audio cards. • PC Health Monitoring: Provides an easier way to examine and manage system status information such as CPU and system voltages, temperatures, and fan sta- tus through the onboard hardware ASIC and bundled LDCM. • Super Multi-I/O: Provides two high-speed UAR T compatible serial ports and one parallel port with EPP and ECP capabilities. • Desktop Management Interface (DMI): Supports DMI through BIOS, which allows hardware to communicate within a standard protocol creating a higher level of compatibility . (Requires DMI-enabled components.)
ASUS MEL-M User’ s Manual 9 II. FEA TURES II. FEA TURES Features Performance • ACPI Ready: ACPI (Advanced Configuration and Power Interface) is also imple- mented on all ASUS smart series of motherboards. ACPI provides more Ener gy Saving Features for future operating systems (OS) supporting OS Direct Power Management (OSPM) functionality . W ith these features implemented in the OS, PCs can be ready around the clock, yet satisfy all the ener gy saving standards. T o fully utilize the benefits of ACPI, an ACPI-supported OS such as the succes- sor of W indows 95 must be used. • Double the IDE T ransfer Speed: IDE transfers using UltraDMA/33 Bus Mas- ter IDE can handle rates up to 33MB/sec. The best of all is that this new technol- ogy is compatible with existing A T A-2 IDE specifications so there is no need to upgrade current hard drives or cables. • Concurr ent PCI: Concurrent PCI allows multiple PCI transfers from PCI mas- ter buses to memory to CPU. • PC’98 Compliant: Both the BIOS and hardware levels of the motherboard meets PC’98 compliancy . The new PC’98 requirements for systems and components are based on the following high-level goals: Support for Plug and Play compatibility and power management for configuring and managing all system components, and 32-bit device drivers and installation procedures for W indows 95/98/NT . • SDRAM Optimized Performance: ASUS smart series motherboards support the new generation memory , Synchronous Dynamic Random Access Memory (SDRAM), which increases the data transfer rate to 528MB/s max using SDRAM. • Ultra DMA/33 BM IDE: Comes with an onboard PCI Bus Master IDE controller with two connectors that support four IDE devices in two channels, supports Ultra DMA/33, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 2, and supports Enhanced IDE devices, such as T ape Backup, CD-ROM, and LS-120 drives. • Easy Installation: Equipped with BIOS that supports autodetection of hard drives, PS/2 mouse, and Plug and Play devices to make setup of hard drives, expansion cards, and other devices virtually automatic. • IrDA: Supports an optional infrared port module for wireless interface. • Quick Adjustments: Easy-to-access DIP switches make changing CPU and onboard features settings a snap.
10 ASUS MEL-M User’ s Manual II. FEA TURES Features II. FEA TURES Intelligence (some featur es requir e the optional Hardware/Thermal Monitor) • Fan Status Monitoring and Alarm: T o prevent system overheat and system damage, the CPU, power supply , and system fans can be monitored for RPM and failure. All the fans are set for its normal RPM range and alarm thresholds. • T emperature Monitoring and Alert: T o prevent system overheat and system damage, there are heat sensors to monitor the CPU and system temperatures to warn of damaging temperatures. • V oltage Monitoring and Alert: System voltage levels are monitored to ensure stable current to critical motherboard components. V oltage specifications are more critical for future processors, so monitoring is necessary to ensure proper system configuration and management. • System Resources Alert: T oday’ s operating systems such as W indows 95, W in- dows NT , and OS/2, require much more memory and hard drive space to present enormous user interfaces and run lar ge applications. The system resource moni- tor will warn the user before the system resources are used up to prevent pos- sible application crashes. Suggestions will give the user information on manag- ing their limited resources more ef ficiently . • Auto Fan Off: The system fans will power of f automatically even in sleep mode . This function reduces both ener gy consumption and system noise, and is a important feature to implement silent PC systems. • Dual Function Power Button: The system can be in one of two states, one is Sleep mode and the other is the Soft-Of f mode. Pushing the power button for less than 4 seconds places the system into Sleep mode. When the power button is pressed for more than 4 seconds, it enters the Soft-Of f mode. • Remote Ring On (r equir es modem): This allows a computer to be turned on remotely through an internal or external modem. W ith this benefit on-hand, any user can access vital information from their computer from anywhere in the world! • Message LED (requir es ACPI OS support): Chassis LEDs now act as infor - mation providers. Through the way a particular LED illuminates, the user can determine the stage the computer is in. A simple glimpse provides useful infor - mation to the user . • Keyboard Power Up: Keyboard Power Up can be enabled or disabled to allow the computer to be powered on by pressing the space bar on the keyboard. • Chassis Intrusion Detection: Supports chassis-intrusion monitoring through an optional ASUS CIDB module and Intel LDCM.
ASUS MEL-M User’ s Manual 11 Parts of the ASUS MEL-M Motherboard II. FEA TURES II. FEA TURES Motherboard Parts Socket 370 Intel 440LX AGPset T : PS/2 Mouse B: PS/2 Keyboard A TX Power Connector B: COM 1 T : USB 1 B: USB 2 T : Parallel/Printer B: COM 2 1 ISA Slot 3 DIMM Sockets Multi-I/O Chip W ake-On-LAN Connector DIP Switches Audio Codec (optional) T : Joystick/Midi B: Out/In/Mic (optional) Y amaha Audio (optional) Hardware Monitor (optional) Intel PIIX4 PCIset SB-Link TM Connector Programmable Flash EEPROM 3 PCI Slots AGP Port
12 ASUS MEL-M User’ s Manual III. HARDW ARE SETUP ASUS MEL-M Motherboard Layout Motherboard Layout III. H/W SETUP COM1 P ARALLEL PORT COM2 USB T : Port 1 B: Port 2 PS/2 T : Mouse B: Keyboard A TX Power Connector 2Mbit Flash EEPROM (Programmable BIOS) PRIMARY SECONDARY FLOPPY Panel Connectors CR2032 3V Lithium Cell CMOS Power CPU_F AN CHA_F AN IR Multi-I/O & Keyboard Controller Intel 440LX AGPset Y amaha Audio Chipset Intel PIIX4 Chipset KBPWR ASUS ASIC PCI Slot 1 (PCI1) PCI Slot 2 (PCI2) PCI Slot 3 (PCI3) ISA Slot 1 (SLOT1) AGP 01 DIMM1 (64/72-bit, 168-pin module) 0 1 01 DIMM2 (64/72-bit, 168-pin module) 2 3 01 DIMM3 (64/72-bit, 168-pin module) 4 5 PWR_F AN T: To p B: Bottom PRINTER P ANEL IDELED SMB Hardware Monitor R MEL-M SBLINK WOL_CON CHASIS CD2 CD1 MODEM Thermal Sensor CLRTC Socket 370 Thermal Sensor Audio Codec DIP Switches GAME/AUDIO Mic In Line Out Line In (Grayed items are optional at the time of purchase.)
ASUS MEL-M User’ s Manual 13 III. HARDW ARE SETUP Motherboard Settings 1) KBPWR p. 14 Keyboard Power Up (Enable/Disable) 2) DIP-Switch 5 p. 15 Onboard Audio Setting 3) DIP-Switch 6 p. 15 VIO Setting 4) DIP-Switch 1,2,3,4 p. 16 CPU Bus Frequency Selection 5) DIP-Switch 7,8,9,10 p. 16 CPU Core:Bus Frequency Multiple Expansion Slots 1) DIMM Sockets p. 17 168-Pin DIMM M emory Support 2) Socket 370 p . 19 Central Processing Unit (CPU) Socket 3) SLOT1 p. 21 16-bit ISA Bus Expansion Slots * 4) P C I 1, PCI2, PCI3 p. 22 32-bit PCI Bus Expansion S lots 5) AGP p. 22 Accelerated Graphics Port Connectors 1) PS2KBMS p. 23 PS/2 Mouse Connector (6-pin female) 2) PS2KBMS p . 23 PS/2 Keyboard Connector (6 -pin female) 3) USB p. 2 4 Universal Serial BUS Ports 1 & 2 (T wo 4-pin female) 4) PRINTER p . 24 Parallel Port Connector (25-pin female) 5) COM1, COM2 p. 2 4 Serial Port COM1 an d COM2 Connectors ( 9-pi n male) 6) GAME_AUDIO p. 25 Joystick/Midi Connector (15-pin female) (optional) 7) GAME_AUDIO p. 25 Audio Port Connectors (Three 1/8” female) (optional) 8) A TXPWR p. 25 A TX Power Supply C onnector (20 pins) 9 ) PRIMAR Y/SECONDAR Y IDE p . 2 6 Primary /Secondary IDE Connectors (T wo 40-1pins) 1 0) FL O PP Y p. 2 6 Floppy Disk Drive C onnector (34-1pins ) 1 1) CHA_, CPU_, PWR_F AN p . 27 Chassis, CPU, Power Supply Fan Connectors (Three 3-pin) 12) WOL_CON p. 27 W ake-On-LAN Connector (3 pins) 1 3 ) I R p . 2 8 IrDA-Compliant Infrared Module Connector (5 pins) 14) IDELED p . 28 IDE LED Activity L ight ( 2 pins) 15) SBLINK p. 29 SB-Link Connector (6-1 pins) 16) CHASIS p. 29 Chassis Intrusion Sensor Lead (4-1 pins) 17) SMB p. 30 SMBus Connector (5-1 pins) 18) AUX/VIDEO_IN p. 30 Stereo Audio In Connectors (T wo 4-pin) 19) CD1/CD2 p. 31 Stereo Audio In Connector (T wo 4-pin) 20) MODEM p. 31 Modem Card V oice In Connector (4 pins) 21) MSG.LED (P ANEL) p . 32 System Message LED (2 pins) 22) SMI (P ANEL) p . 32 SMI Switch Lead (2 pins) 23) PWR.SW (P ANEL) p. 32 A TX Power & Soft-Off Switch Lead (2 pins) 24) RESET (P ANEL) p . 32 Reset Switch L ead (2 pins) 25) PWR.LED ( P ANEL ) p . 3 2 System Power LED Lead (3 - 1 pins) 26) KEYLOCK ( P ANEL ) p . 3 2 Keyboard Lock Switch Lead (2 pins) 27) SPEAKER (P ANEL) p . 32 System W arning Speaker C onnector (4 pins) * The onboard hardware monitor uses the address 290H-297H so legacy ISA cards must not use this address; otherwise, conflicts will occur . Layout Contents III. H/W SETUP
14 ASUS MEL-M User ’ s Manual III. HARDW ARE SETUP Motherboard Settings III. H/W SETUP Hardware Setup Steps Before using your computer , you must complete the following steps: 1. Check Motherboard Settings 2. Install Memory Modules 3. Install the Central Pr ocessing Unit (CPU) 4. Install Expansion Cards 5. Connect Ribbon Cables, Panel W ir es, and Power Supply 6. Setup the BIOS Softwar e 1. Motherboard Settings W ARNING! Computer motherboards, baseboards and components, such as SCSI cards, contain very delicate Integrated Circuit (IC) chips. T o protect them against damage from static electricity , you should follow some precautions whenever you work on your computer . 1. Unplug your computer when working on the inside. 2. Use a grounded wrist strap before handling computer components. If you do not have one, touch both of your hands to a safely grounded object or to a metal object, such as the power supply case. 3. Hold components by the edges and try not to touch the IC chips, leads o r connectors, o r other components. 4. Place components on a grounded antistatic pad or on the bag that came with the component whenever the components are separated from the system. 1. Keyboard W ake Up (3-pin KBPWR) This allows you to disable or enable the keyboard power up function. Set this jumper to Enable if you wish to use your keyboard (by pressing the spacebar) to power up your computer . This feature requires an A TX power supply that can supply at least 300mA on the 5VSB lead. The default is set to Disable because not all computers have the appropriate A TX power supply . Y our computer will not power on if you set this to Enable and if you do not have the right A TX power supply . MEL-M Keyboard Power Up Disable (Default) KBPWR Enable 1 2 3 1 2 3 KBPWR 0 1 0 1 0 1 R MEL-M
ASUS MEL-M User’ s Manual 15 III. HARDW ARE SETUP III. H/W SETUP Motherboard Settings Motherboard Settings (DIP Switches) Some of the motherboard’ s onboard functions can be adjusted through the DIP switches. The white block represents the switch’ s position. The example below shows all the switches in the OFF position. MEL-M DIP Switches OFF 0 1 0 1 0 1 R MEL-M ON 123456789 1 0 ON <Frequency Selection <Frequency Selection <Frequency Selection <Reserved <Onboard Audio Setting <VIO Setting <Frequency Multiple <Frequency Multiple <Frequency Multiple <Frequency Multiple 2. Onboard Audio Setting (DIP-Switch 5) The onboard audio can be turned ON or OFF using this switch. MEL-M Onboard Audio ON 1234 5 6789 1 0 ON 1234 5 6789 1 0 Enable Disable 3. VIO Setting (DIP-Switch 6) The onboard voltage regulator allows you to select the voltage supplied to the DRAM, chipset, AGP , and the CPU’ s I/O buffer . IMPOR T ANT! Settings this switch to ON (Add 0.1 V olt) may reduce system life. It is strongly recommended that you leave this switch on its default setting of OFF (Normal). ON 12345 6 789 1 0 ON 12345 6 789 1 0 MEL-M V oltage I/O Normal Add 0.1V olt
16 ASUS MEL-M User ’ s Manual III. HARDW ARE SETUP Motherboard Settings III. H/W SETUP W ARNING! Do not overclock your processor . Frequencies above 66MHz ex- ceed the specifications for the onboard Intel Chipset and are not guaranteed to be stable. Overclocking can cause undue stress on the CPU and motherboard. It may result in a slower speed or other unpredictable outcomes. The table on the following page shows the approved CPUs and their settings. 4. CPU External (BUS) Fr equency Selection (DIP-Switch 1, 2, 3, 4) These function switches tell the clock generator what frequency to send to the CPU. These allow the selection of the CPU’ s External frequency (or BUS Clock). The BUS Clock times the BUS Multiple equals the CPU's Internal frequency (the advertised CPU speed). 5. CPU to BUS Fr equency Multiple (DIP-Switch 7, 8, 9, 10) These function switches set the frequency multiple between the Internal fre- quency of the CPU and the External frequency (called the BUS Clock) within the CPU. MEL-M CPU External Clock (BUS) Frequency Selection ON 1234 56789 1 0 66.8MHz 66.8MHz 33.4MHz CPU AGP PCI → → → MEL-M CPU : BUS Frequency Multiple 8.0x(8/1) ON 123456 789 1 0 7.5x(15/2) ON 123456 789 1 0 7.0x(7/1) ON 123456 789 1 0 6.5x(13/2) ON 123456 789 1 0 ON 123456 789 1 0 6.0x(6/1) 5.0x(5/1) ON 123456 789 1 0 4.5x(9/2) ON 123456 789 1 0 4.0x(4/1) ON 123456 789 1 0 3.5x(7/2) ON 123456 789 1 0 ON 123456 789 1 0 3.0x(3/1) 5.5x(1 1/2) ON 123456 789 1 0 Set the DIP switches b y the Internal speed of your processor a s follows: (BUS Frequency Switches) (Frequency Multiple Switches) Intel CPU Model Speed Mult Fr eq. 1 2 3 4 7 8 9 10 Celeron (PPGA) 466MHz 7.0x 66MHz [OFF] [OFF] [OFF] [OFF] [ON] [OFF] [ON] [OFF] Celeron (PPGA) 433MHz 6.5x 66MHz [OFF] [OFF] [OFF] [OFF] [OFF] [ON] [ON] [OFF] Celeron (PPGA) 400MHz 6.0x 66MHz [OFF] [OFF] [OFF] [OFF] [ON] [ON] [ON] [OFF] Celeron (PPGA) 366MHz 5.5x 66MHz [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [ON] Celeron (PPGA) 333MHz 5.0x 66MHz [OFF] [OFF] [OFF] [OFF] [ON] [OFF] [OFF] [ON] Celeron (PPGA) 300MHz 4.5x 66MHz [OFF] [OFF] [OFF] [OFF] [OFF] [ON] [OFF] [ON]
ASUS MEL-M User’ s Manual 17 III. HARDW ARE SETUP System Memory III. H/W SETUP 2. System Memory (DIMM) Only Dual Inline Memory Modules (DIMM) can be used with this motherboard. Sockets are available for 3.3V olt (power level) unbuf fered Synchronous Dynamic Random Access Memory (SDRAM) of either 8, 16, 32, 64, 128MB, or 256MB . One side (with memory chips) of the DIMM takes up one row on the motherboard. T o utilize the chipset’ s Error Checking and Correction (ECC) feature, you must use a DIMM module with 9 chips per side (standard 8 chips/side 1 parity chip) and make the proper settings in BIOS Chipset Featur es Setup of BIOS SETUP . IMPOR T ANT : Memory speed setup is required through "Auto Configuration" in BIOS Chipset Setup of BIOS SETUP . W ARNING! Memory modules must have 18 chips or less. Memory modules with more than 18 chips will cause unstable operation. Install memory in any combination as follows: DIMM Location 168-pin DIMM T otal Memory DIMM1 (Rows 0&1) SDRAM 8, 16, 32, 64, 128, 256MB x1 DIMM2 (Rows 2&3) SDRAM 8, 16, 32, 64, 128, 256MB x1 DIMM3 (Rows 4&5) SDRAM 8, 16, 32, 64, 128, 256MB x1 T otal System Memory (Max 768MB) = Memory Notes: • DIMMs that have more than 18 chips ar e not supported on this mother - board. • T wo possible memory modules are supported: SDRAM with and without ECC. • SDRAM chips are generally thinner and have higher pin density than EDO chips. • BIOS shows SDRAM memory on bootup screen. • 8 chips/side modules do not support ECC, only 9 chips/side modules support ECC. • Single-sided DIMMs are available in 16, 32, 64, 128MB; double-sided in 32, 64, 128, 256MB.
18 ASUS MEL-M User ’ s Manual DIMM Memory Installation Insert the module(s) as shown. Because the number of pins are dif ferent on either side of the breaks, the module will only fit in the orientation as shown. DIMM modules are longer and have dif ferent pin contact on each side and therefore have a higher pin density . SIMM modules have the same pin contact on both sides. MEL-M 168-Pin DIMM Sockets Lock FRONT 20 Pins 60 Pins 88 Pins 0 1 0 1 0 1 R MEL-M The DIMMs must be 3.3V Unbuffer ed for this motherboard. T o determine the DIMM type, check the notches on the DIMMs (see figure below). 168-Pin DIMM Notch Key Definitions (3.3V) DRAM Key Position V oltage Key Position Unbuffered RFU Buffered Reserved 3.3V 5.0V The notches on the DIMM module will shift between left, center , or right to identify the type and also to prevent the wrong type from being inserted into the DIMM slot on the motherboard. Y ou must ask your retailer the correct DIMM type before purchas- ing. This motherboard supports four clock signals. III. HARDW ARE SETUP System Memory III. H/W SETUP
19 ASUS MEL-M User’ s Manual III. HARDW ARE SETUP CPU III. H/W SETUP 3. Central Processing Unit (CPU) The motherboard provides a ZIF Socket 370. The CPU that came with the mother - board should have a fan attached to it to prevent overheating. If this is not the case then purchase a fan before you turn on your system. W ARNING! Be sure that there is sufficient air circulation across the processor ’ s heatsink by regularly checking that your CPU fan is working. Without suf ficient circulation, the processor could overheat and damage both the processor and the motherboard. Y ou may install an auxiliary fan, if necessary . T o install a CPU, first turn of f your system and remove its cover . Locate the ZIF socket and open it by first pulling the lever sideways away from the socket then upwards to a 90-degree right angle. Insert the CPU with the correct orientation as shown. The notched corner should point towards the end the of the lever . Because the CPU has a corner pin for two of the four corners, the CPU will only fit in the one orientation as shown. The picture is for reference only; you should have a CPU fan that will cover the face of the CPU. W ith the added weight of the CPU fan, no force is required to insert the CPU. Once completely inserted, close the socket’ s lever while holding down the CPU. NOTE: Set the bus fr equency and multiple for your Socket 370 pr ocessor . MEL-M Socket 370 Socket 370 CPU (T op) Socket 370 CPU (Bottom) Notch 0 1 0 1 0 1 R MEL-M
20 ASUS MEL-M User ’ s Manual III. HARDW ARE SETUP CPU III. H/W SETUP (This page was intentionally left blank.)
ASUS MEL-M User’ s Manual 21 III. HARDW ARE SETUP Expansion Cards III. H/W SETUP 4. Expansion Cards W ARNING! Make sure that you unplug your power supply when adding or removing expansion cards or other system components. Failure to do so may cause severe damage to both your motherboard and expansion cards. Expansion Card Installation Procedure 1. Read the documentation for your expansion card and make any necessary hard- ware or software settings for your expansion card, such as jumpers. 2. Remove your computer system’ s cover and the bracket plate on the slot you intend to use. Keep the bracket for possible future use. 3. Carefully align the card’ s connectors and press firmly . 4. Secure the card on the slot with the screw you removed above. 5. Replace the computer system’ s cover . 6. Set up the BIOS if necessary (such as IRQ xx Used By ISA: Y es in PNP AND PCI SETUP) 7. Install the necessary software drivers for your expansion card. Assigning IRQs for Expansion Cards Some expansion cards need to use an IRQ to operate. Generally , an IRQ must be exclusively assigned to one use. In a standard design, there are 16 IRQs available but most of them are already in use, leaving 6 IRQs free for expansion cards. If your motherboard has PCI audio onboard, an extra IRQ will be used, leaving 5 IRQs free. If your motherboard has ISA audio onboard, an extra 3 IRQs will be used, leaving 3 IRQs free. NOTE: The onboard audio by default uses IRQ 5. Both ISA and PCI expansion cards may require to use IRQs. System IRQs are avail- able to cards installed in the ISA expansion bus first, then any remaining IRQs are available to PCI cards. Currently , there are two types of ISA cards. The original ISA expansion card design, now referred to as legacy ISA cards, requires that you con- figure the card’ s jumpers manually and then install it in any available slot on the ISA bus. Y ou may use the Microsoft Diagnostics (MSD.EXE) utility located in the W in- dows directory to see a map of your used and free IRQs. If you use W indows 95, the Resources tab under Device Manager displays the resource settings being used by a particular device (to gain access, double-click the System icon under the Contr ol Panel program). Ensure that no two devices share the same IRQs or your computer will experience problems when those two devices are in use at the same time.
22 ASUS MEL-M User ’ s Manual III. HARDW ARE SETUP T o simplify this process this motherboard has complied with the Plug and Play (PNP) specification which was developed to allow automatic system configuration when- ever a PNP-compliant card is added to the system. For PNP cards, IRQs are as- signed automatically from those available. If the system has both Legacy and PNP ISA cards installed, IRQs are assigned to PNP cards from those not used by Legacy cards. The PCI and PNP configuration of the BIOS setup utility can be used to indicate which IRQs are being used by Legacy cards. For older Legacy cards that does not work with the BIOS, you can contact your vendor for an ISA Configuration Utility . An IRQ number is automatically assigned to PCI expansion cards after those used by Legacy and PNP ISA cards. In the PCI bus design, the BIOS automatically as- signs an IRQ to a PCI slot that has a card in it that requires an IRQ. T o install a PCI card, you need to set something called the INT (interrupt) assignment. Since all the PCI slots on this motherboard use an INT A #, be sure that the jumpers on your PCI cards are set to INT A. Assigning DMA Channels for ISA Cards Some ISA cards, both legacy and PnP , may also need to use a DMA (Direct Memory Access) channel. DMA assignments for this motherboard are handled the same way as the IRQ assignment process described earlier . Y ou can select a DMA channel in the PCI and PnP configuration section of the BIOS Setup utility . NOTE: The onboard audio by default uses DMA1. IMPOR T ANT : T o avoid conflicts, reserve the necessary IRQs and DMAs for legacy ISA cards (under PNP AND PCI S etup of BIOS SETUP , choose Ye s in IRQ xx Used By ISA and DMA x Used By ISA for those IRQs and DMAs you want to reserve). ISA Cards and Hardware Monitor The onboard hardware monitor uses the address 290H-297H so legacy ISA cards must not use this address or else conflicts will occur . Accelerated Graphics Port This motherboard provides an accelerated graphics port (AGP) slot to support a new generation of graphics cards with ultra-high memory bandwidth, such as an ASUS 3D hardware accelerator . MEL-M Accelerated Graphics Port (AGP) 0 1 0 1 0 1 R MEL-M Expansion Cards III. H/W SETUP
ASUS MEL-M User’ s Manual 23 III. HARDW ARE SETUP DMA Channels III. H/W SETUP Connectors III. H/W SETUP 5. External Connectors W ARNING! Some pins are used for connectors or power sources. These are clearly distinguished from jumpers in the Motherboard Layout. Placing jumper caps over these connector pins will cause damage to your motherboard. IMPOR T ANT : Ribbon cables should always be connected with the red stripe on the Pin 1 side of the connector . The four corners of the connectors are labeled on the motherboard. Pin 1 is the side closest to the power connector on hard drives and floppy drives. IDE ribbon cable must be less than 46 cm (18”), with the second drive connector no more than 15cm (6”) from the first connector . 1. PS/2 Mouse Connector (6-pin PS2KBMS) The system will direct IRQ12 to the PS/2 mouse if one is detected. If not de- tected, expansion cards can use IRQ12. See “PS/2 Mouse Control” in BIOS Featur es Setup of BIOS SETUP . PS/2 Mouse (6-pin Female) 2. PS/2 Keyboard Connector (6-pin PS2KBMS) This connection is for a standard keyboard using an PS/2 plug (mini DIN). This connector will not allow standard A T size (large DIN) keyboard plugs. Y ou may use a DIN to mini DIN adapter on standard A T keyboards. PS/2 Keyboard (6-pin Female)
24 ASUS MEL-M User ’ s Manual Connectors III. H/W SETUP III. HARDW ARE SETUP 3. Universal Serial BUS Ports 1 & 2 (T wo 4-pin USB) T wo USB ports are available for connecting USB devices. Universal Serial Bus (USB) 2 USB 1 4. Parallel Port Connector (25-pin PRINTER) Y ou can enable the parallel port and choose the IRQ through “Onboard Parallel Port” in Chipset Featur es Setup of BIOS SETUP . NOTE : Serial printers must be connected to the serial port. Parallel (Printer) Port (25-pin Female) 5. Serial Port Connectors (T wo 9-pin COM1/COM2) The two serial ports can be used for pointing devices or other serial devices. See “Onboard Serial Port” in Chipset Featur es Setup of BIOS SETUP . COM 1 COM 2 Serial Ports (9-pin Male)
ASUS MEL-M User’ s Manual 25 III. HARDW ARE SETUP Connectors III. H/W SETUP 6. Joystick/Midi Connector (15-pin GAME_AUDIO) Y ou may connect game joysticks or game pads to this connector for playing games. Connect MIDI devices for playing or editing audio. Joystick/Midi (15-pin Female) 7. Audio Port Connectors (Thr ee 1/8” GAME_AUDIO) Line Out can be connected to headphones or preferably powered speakers. Line In allows tape players or other audio sources to be recorded by your com- puter or played through the Line Out. Mic allows microphones to be connected for inputing voice. Mic Line In Line Out 1/8" Stereo Audio Connectors 8. A TX Power Supply Connector (20-pin block A TXPWR) This connector connects to an A TX power supply . The plug from the power sup- ply will only insert in one orientation because of the dif ferent hole sizes. Find the proper orientation and push down firmly making sure that the pins are aligned. IMPOR T ANT : Make sure that your A TX power supply can supply at least 10mA on the 5 volt standby lead ( 5VSB). Y ou may experience difficulty in power - ing on your system if your power supply cannot support the load. For W ake-On- LAN support, your A TX power supply must supply at least 720mA 5VSB. MEL-M A TX Power Connector 3.3V olts -12.0V olts Ground Power Supply On Ground Ground Ground -5.0 V olts 5.0 V olts 5.0 V olts Power Good 12.0V olts 3.3 V olts 3.3 V olts Ground 5.0 V olts Ground 5.0 V olts Ground 5V Standby 0 1 0 1 0 1 R MEL-M
26 ASUS MEL-M User ’ s Manual III. HARDW ARE SETUP Connectors III. H/W SETUP 9. Primary / Secondary IDE connectors (T wo 40-1pin IDE) These connectors support the provided IDE hard disk ribbon cable. After connecting the single end to the board, connect the two plugs at the other end to your hard disk(s). If you install two hard disks, you must configure the second drive to Slave mode by setting its jumper accordingly . Please refer to the documentation of your hard disk for the jumper settings. BIOS now supports SCSI device or IDE CD-ROM bootup (see “HDD Sequence SCSI/IDE First” & “Boot Sequence” in BIOS Featur es Setup of BIOS SETUP) (Pin 20 is removed to pr event inserting in the wr ong orientation when using ribbon cables with pin 20 plugged). TIP: Y ou may configure two hard disks to be both Masters using one ribbon cable on the primary IDE connector and another ribbon cable on the secondary IDE connector . Y ou may install one operating system on an IDE drive and another on a SCSI drive and select the boot disk through BIOS Featur es Setup . MEL-M IDE Connectors NOTE: Orient the red markings (usually zigzag) on the IDE ribbon cable to PIN 1 Primary IDE Connector Secondary IDE Connector PIN 1 0 1 0 1 0 1 R MEL-M 10. Floppy Disk Drive Connector (34-1pin FLOPPY) This connector supports the provided floppy drive ribbon cable. After connect- ing the single end to the board, connect the two plugs on the other end to the floppy drives. (Pin 5 is r emoved to pr event inserting in the wr ong orienta- tion when using ribbon cables with pin 5 plugged). NOTE: Orient the red markings on the floppy ribbon cable to PIN 1 MEL-M Floppy Disk Drive Connector PIN 1 0 1 0 1 0 1 R MEL-M
ASUS MEL-M User’ s Manual 27 III. HARDW ARE SETUP Connectors III. H/W SETUP 11 . Chassis, CPU , & Power Supply Fan Connectors (3-pin CHA_, CPU_, PWR_F AN) These connectors support cooling fans of 500mA (6 W atts) or less. Orientate the fans so that the heat sink fins allow airflow to go across the onboard heat sink(s) instead of the expansion slots. Depending on the fan manufacturer , the wiring and plug may be dif ferent. The red wire should be positive, while the black should be ground. Connect the fan’ s plug to the board taking into consideration the polarity of the this connector . NOTE: The “Rotation” signal is to be used only by a specially designed fan with r otation signal. W ARNING! The CPU and/or motherboard will overheat if there is no airflow across the CPU and onboard heatsinks. Damage may occur to the motherboard and/or the CPU fan if these pins are incorrectly used. These are not jumpers, do not place jumper caps over these pins. MEL-M 12-V olt Cooling Fan Power Chassis Fan Power GND Rotation 12V 0 1 0 1 0 1 R MEL-M GND Rotation 12V Power Supply Fan CPU Fan Power 12. W ake-On-LAN Connector (3 -pin WOL_CON) These connector connects to LAN cards with a W ake- On-LAN output, such as the ASUS PCI-L101 (see APPENDIX). The connector powers up the system when a wakeup packet or signal is received through the LAN card. IMPOR T ANT : This feature requires that the W AKE On LAN Power Up Control is set to Enabled (see Power Management Setup under BIOS SETUP ) and that your system has an A TX power supply with at least 720mA 5V standby power . MEL-M W ake-On-LAN Connector IMPORT ANT : Requires an A TX power supply with at least 720mA 5-volt standby power 0 1 0 1 0 1 R MEL-M 5 V olt Standby PME Ground
28 ASUS MEL-M User ’ s Manual III. HARDW ARE SETUP Connectors III. H/W SETUP 13. IrDA-Compliant Infrared Module Connector (5-pin IR) This connector supports the optional wireless transmitting and receiving infrared module. This module mounts to a small opening on system cases that support this feature. Y ou must also configure the setting through “UAR T2 Use Infrared” in Chipset Featur es Setup to select whether UAR T2 is directed for use with COM2 or IrDA. Use the five pins as shown on the Back V iew and connect a ribbon cable from the module to the motherboard according to the pin definitions. MEL-M Infrared Module Connector Front View 5V IRTX IRRX (NC) GND Back View 5V IRRX IRTX (NC) GND 0 1 0 1 0 1 R MEL-M 14. Hard Disk Activity LED (2-pin IDELED) This connector supplies power to the cabinet’ s hard disk or IDE activity LED. Read and write activity by devices connected to the Primary or Secondary IDE connectors will cause the LED to light up. MEL-M IDE Activity LED TIP: If the case-mounted LED does not light, try reversing the 2-pin plug. IDELED 0 1 0 1 0 1 R MEL-M
ASUS MEL-M User’ s Manual 29 III. HARDW ARE SETUP Connectors III. H/W SETUP 15. SB-Link™ Connector (6-1 pin SBLINK) Using Intel’ s PC-PCI and serialized IRQ protocols found in this motherboard’ s AGPset, this connector allows Sound Blaster 16 compatibility to A WE64D (Digi- tal) or other PCI audio cards, enabling users to play Real-mode DOS games and multimedia applications. SB-Link acts as a bridge between the motherboard and the PCI audio card by providing the DMA and IRQ signals present in the ISA bus but not available on the PCI bus. MEL-M SB-Link™ Connector NOTE: Pin 3 is removed to ensure the correct orientation of the cable on it. SBLINK PC/PCI Request Sideband Signal 5 6 1 DGND 2 DGND Serial IRQ PC/PCI Grant Sideband Signal 0 1 0 1 0 1 R MEL-M 16. Chassis Intrusion Sensor Lead (4-1 pin CHASIS) This lead is for a chassis intrusion monitor or sensor . The sensor is triggered when a high level signal is sent to the “chassis signal” lead. This occurs when a panel switch or light detector is triggered. This function requires the optional ASUS CIDB Chassis Intrusion Sensor Module (see APPENDIX) to be installed. MEL-M Chassis Open Alarm Lead 5V olt Standby Ground Chassis Signal 0 1 0 1 0 1 R MEL-M
30 ASUS MEL-M User ’ s Manual III. HARDW ARE SETUP Connectors III. H/W SETUP 17. SMBus Connector (5-1 pin SMB) This connector allows you to connect SMBus devices. SMBus devices commu- nicate by means of the SMBus with an SMBus host and/or other SMBus de- vices. The SMBus or System Management Bus is a specific implementation of an I 2 C bus, which is a multi-master bus, that is, multiple chips can be connected to the same bus and each one can act as a master by initiating data transfer . SMBCLK Ground SMBDA T A 5V 1 MEL-M SMBus Connector 0 1 0 1 0 1 R MEL-M 18. Stereo Audio In Connectors ( 4 -pin AUX, VIDEO_IN) These connectors allow you to receive stereo audio input from such sound sources as a TV tuner or MPEG card. MEL-M Stereo Audio In Connectors NOTE: VIDEO_IN has the same pin definitions as AUX 0 1 0 1 0 1 R MEL-M AUX VIDEO_IN Right Audio Channel Left Audio Channel Ground Ground
ASUS MEL-M User’ s Manual 31 III. HARDW ARE SETUP Connectors III. H/W SETUP 19. Stereo Audio In Connector ( 4 -pin CD1/C D2) This connector allows you to receive stereo audio input from an internal CD- ROM drive or other sound sources such as a TV tuner or MPEG card. MEL-M Stereo Audio In Connector 0 1 0 1 0 1 R MEL-M CD2 CD1 Left Audio Channel Right Audio Channel Ground Ground Left Audio Channel Right Audio Channel Ground Ground 20. V oice Modem In Connector (4-pin MODEM) This connector allows the onboard audio to interface with a voice modem card. It also allows the sharing of microphone and speaker between the onboard audio and the voice modem card. NOTE: Y our voice modem card requires a similar connector to use this feature. MEL-M Modem Card V oice In Connector 0 1 0 1 0 1 R MEL-M Modem-In Ground Modem-Out Ground MODEM
32 ASUS MEL-M User ’ s Manual III. HARDW ARE SETUP Connectors III. H/W SETUP 21. Message LED Lead (2-pin MSG.LED) This indicates whether a message has been received from a fax/modem. The LED will remain lit when there is no signal and blink when there is data transfer or waiting in the inbox. This function requires ACPI OS and driver support. 22. System Management Interrupt Lead (2-pin SMI) This allows the user to manually place the system into a suspend mode or “Green” mode where system activity is decreased to save electricity and expand the life of certain components when the system is not in use. This 2-pin connector con- nects to the case-mounted suspend switch. If you do not have a switch for the connector , you may use the “T urbo Switch”. SMI is activated when it detects a short to open moment and therefore leaving it shorted will not cause any prob- lems. This may require one or two presses depending on the position of the switch. W ake-up can be controlled by settings in the BIOS but the keyboard will always allow wake-up (the SMI lead cannot wake up the system). If you want to use this connector , set “Suspend Mode” under Power Management Setup of BIOS SETUP section to the preferred time after which the system must go into suspend mode when you press the switch . 23. A TX Power Switch / Soft Power Switch (2-pin PWR.SW) The system power is controlled by a momentary switch connected to this lead. Pressing the button once will switch the system between ON and SLEEP or ON and SOFT OFF depending on the “PWR Button” setting under Power Manage- ment Setup of BIOS SETUP . Pressing the switch while in the ON mode for more than 4 seconds will turn the system of f. The system power LED shows the status of the system’ s power . 24. Reset Switch Lead (2-pin RESET) This 2-pin connector connects to the case-mounted reset switch for rebooting your computer without having to turn of f your power switch. This is a preferred method of rebooting to prolong the life of the system’ s power supply . 25. System Power LED (3-1 pin PWR.LED) This 3-1 pin connector connects the system power LED, which lights when the system is powered on and blinks when it is in sleep mode. 26. Keyboard Lock Switch Lead (2-pin KEYLOCK) This 2-pin connector connects to the case-mounted key switch to allow key- board locking. 27. System W arning Speaker Connector (4-pin SPEAKER) This 4-pin connector connects to the case-mounted speaker . MEL-M System Panel Connectors Reset Switch Power Switch GND GND System Speaker GND Keyboard Lock Message LED SMI Switch Power LED 0 1 0 1 0 1 R MEL-M
ASUS MEL-M User’ s Manual 33 III. HARDW ARE SETUP Power Connections III. H/W SETUP Power Connection Procedures 1. After all connections are made, close the system case cover . 2. Be sure that all switches are OFF (in some systems, marked with ). 3. Connect the power supply cord into the power supply located on the back of your system case according to your system user ’ s manual. 4. Connect the power cord into a power outlet that is equipped with a surge protector . 5. Y ou may then turn ON your devices in the following order: a. Y our monitor b. External SCSI devices (starting with the last device on the chain) c . Y our system power . For A TX power supplies, you need to switch ON the power supply as well as press the A TX power switch on the front of the case. 6. The power LED on the front panel of the system case will light. For A TX power supplies, the system LED will light when the A TX power switch is pressed. The monitor LED may light up after the system’ s if it complies with “green” stan- dards or if it has a power standby feature. The system will then run power -on tests. While the tests are running, additional messages will appear on the screen. If you do not see anything within 30 seconds from the time you turn ON the power , the system may have failed a power-ON test. Recheck your jumper settings and connections or call your retailer for assistance. 7. During power -ON, hold down <Delete> to enter BIOS setup. Follow the in- structions in the next section, BIOS SOFTW ARE. * Powering Off your computer: Y ou must first exit or shut down your operating system before switching OFF the power switch. For A TX power supplies, you can press the A TX power switch after exiting or shutting down your operating system. If you use W indows 95, click the Start button, click Shut Down, and then click Shut down the computer?. The power supply should turn of f auto- matically after W indows shuts down. NOTE: The message “Y ou can now safely turn OFF your computer” will not appear when shutting down with A TX power supplies.
ASUS MEL-M User’ s Manual 34 IV . BIOS Flash Memory Writer IV . BIOS SETUP Flash Memory W riter Utility AFLASH.EXE: This is the Flash Memory W riter utility that updates the BIOS by uploading a new BIOS file to the programmable flash ROM chip on the motherboard. T o determine the BIOS version of your motherboard, check the last four numbers of the code displayed on the upper left-hand corner of your screen during bootup. Lar ger numbers represent a newer BIOS file. This file works only in DOS mode. NOTE: The following screen displays are provided as examples only and may not reflect the screen contents displayed on your system. Main Menu 1. Save Curr ent BIOS T o File This option allows you to save a copy of the original motherboard BIOS in case you need to reinstall it. It is recommended that you save AFLASH.EXE and the BIOS file to a bootable floppy disk. IMPOR T ANT! If “unknown” is displayed after Flash Memory:, the memory chip is either not programmable or is not supported by the ACPI BIOS and therefore, cannot be programmed by the Flash Memory W riter utility . T o save your current BIOS, type [1] at the Main Menu and then press <Enter>. The Save Curr ent BIOS T o File screen appears. T ype a filename and the path, for example, A:\XXX-X and then press <Enter>.
ASUS MEL-M User’ s Manual 35 IV . BIOS Flash Memory Writer IV . BIOS SETUP When prompted to confirm the BIOS update, press Y to start the update. 2. Update BIOS Including Boot Block and ESCD This option updates the boot block, the baseboard BIOS, and the ACPI extended system con- figuration data (ESCD) parameter block from a new BIOS file. See the next page for proce- dures on downloading an updated BIOS file. The utility starts to program the new BIOS information into the flash ROM. When the pro- gramming is finished, Flashed Successfully will be displayed. T o update your current BIOS, type [2] at the Main Menu and then press <Enter>. The Update BIOS Including Boot Block and ESCD screen appears. T ype the filename of your new BIOS and the path, for example, A: \XXXXXXX.A WD , and then press <Enter>. Follow the onscreen instruc- tions to continue.
ASUS MEL-M User’ s Manual 36 IV . BIOS Updating BIOS IV . BIOS SETUP Managing and Updating Y our Motherboard’ s BIOS Upon First Use of the Computer System 1. Create a bootable system floppy disk by typing [FORMA T A:/S] from the DOS prompt without creating “AUT OEXEC.BA T” and “CONFIG.SYS” files. 2. Copy AFLASH.EXE to the just created boot disk. 3. Run AFLASH.EXE from this new disk and select option 1. Save Current BIOS to File . See 1. Save Curr ent BIOS T o File on the previous page for more de- tails and the rest of the steps. Updating BIOS Procedur es (only when necessary) 1. Download an updated ASUS BIOS file from the Internet (WWW or FTP) or a BBS (Bulletin Board Service) (see ASUS CONT ACT INFORMA TION on page 3 for details) and save to the disk you created earlier . 2. Boot from the disk you created earlier . 3. At the “A:\” prompt, type AFLASH and then press <Enter>. 4. At the Main Menu, type 2 and then press <Enter>. See 2. Update BIOS In- cluding Boot Block and ESCD on the previous page for more details and the rest of the steps. W ARNING! If you encounter problems while updating the new BIOS, DO NOT turn OFF your system since this might prevent your system from booting up. Just repeat the process, and if the problem still persists, update the original BIOS file you saved to disk above. If the Flash Memory W riter utility was not able to successfully update a complete BIOS file, your system may not be able to boot up. If this happens, your system will need service.
ASUS MEL-M User’ s Manual 37 IV . BIOS SETUP 6. BIOS Setup IV . BIOS BIOS Setup The motherboard supports two programmable Flash ROM chips: 5-V olt and 12- V olt. Either of these memory chips can be updated when BIOS upgrades are re- leased. Use the Flash Memory W riter utility to download the new BIOS file into the ROM chip as described in detail in this section. All computer motherboards provide a Setup utility program for specifying the sys- tem configuration and settings. If your motherboard came in a computer system, the proper configuration entries may have already been made. If so, invoke the Setup utility , as described later , and take note of the configuration settings for future refer - ence; in particular , the hard disk specifications. If you are installing the motherboard, reconfiguring your system or you receive a Run Setup message, you will need to enter new setup information. This section describes how to configure your system using this utility . The BIOS ROM of the system stores the Setup utility . When you turn ON the computer , the system provides you with the opportunity to run this program. This appears during the Power -On Self T est (POST). Press <Delete> to call up the Setup utility . If you are a little bit late pressing the mentioned key(s), POST will continue with its test routines, thus preventing you from calling up Setup. If you still need to call Setup, reset the system by pressing <Ctrl> <Alt> <Delete>, or by pressing the Reset button on the system case. Y ou can also restart by turning the system OFF and then back ON again. But do so only if the first two methods fail. When you invoke Setup, the CMOS SETUP UTILITY main program screen will appear with the following options:
ASUS MEL-M User’ s Manual 38 IV . BIOS SETUP IV . BIOS Standard CMOS Load Defaults The “Load BIOS Defaults” option loads the minimum settings for troubleshooting. “ Load Setup Defaults ”, on the other hand, is for loading optimized defaults for regular use. Choosing defaults at this level, will modify all applicable settings. A section at the bottom of the above screen displays the control keys for this screen. T ake note of these keys and their respective uses. Another section just below the control keys section displays information on the currently highlighted item in the list. Standard CMOS Setup The “Standard CMOS Setup” option allows you to record some basic system hard- ware configuration and set the system clock and error handling. If the motherboard is already installed in a working system, you will not need to select this option anymore. However , if the configuration stored in the CMOS memory on the board gets lost or damaged, or if you change your system hardware configuration, you will need to respecify the configuration values. The configuration values usually get lost or corrupted when the power of the onboard CMOS battery weakens. The preceding screen provides you with a list of options. At the bottom of this screen are the control keys for this screen. T ake note of these keys and their respective uses. User -configurable fields appear in a dif ferent color . If you need information on the selected field, press <F1>. The help menu will then appear to provide you with the information you need. The memory display at the lower right-hand side of the screen is read-only and automatically adjusts accordingly . Details of Standard CMOS Setup: Date T o set the date, highlight the “Date” field and then press either <Page Up>/<Page Down> or < >/<–> to set the current date. Follow the month, day and year format. V alid values for month, day and year are: Month: (1 to 12), Day: (1 to 31), Y ear: ( up to 2079)
ASUS MEL-M User’ s Manual 39 IV . BIOS SETUP IV . BIOS Standard CMOS T ime T o set the time, highlight the “T ime” field and then press either <Page Up>/<Page Down> or < >/<–> to set the current time. Follow the hour , minute and second format. V alid values for hour , minute and second are: (Hour: (00 to 23), Minute: (00 to 59), Second: (00 to 59) . NOTE: Y ou can bypass the date and time prompts by creating an AUTOEXEC.BA T file. For information on how to create this file, please refer to the MS-DOS manual. Hard Disks This field records the specifications for all non-SCSI hard disk drives installed in your system. The onboard PCI IDE connectors provide Primary and Secondary channels for connecting up to four IDE hard disks or other IDE devices. Each chan- nel can support up to two hard disks; the first of which is the “master” and the second is the “slave”. Specifications for SCSI hard disks need not to be entered here since they operate using device drivers and are not supported bythe BIOS. If you install other SCSI controller cards, refer to their respective documentations on how to install the re- quired SCSI drivers. For IDE hard disk drive setup, you can: • Use the Auto setting for detection during bootup. • Use the IDE HDD AUTO DETECTION in the main menu to automatically enter the drive specifications. • Enter the specifications yourself manually by using the “User” option. The entries for specifying the hard disk type include CYLS (number of cylinders), HEAD (number of read/write heads), PRECOMP (write precompensation), LANDZ (landing zone), SECT OR (number of sectors) and MODE . The SIZE field auto- matically adjusts according to the configuration you specify . The documentation that comes with your hard disk should provide you with the information regarding the drive specifications. The MODE entry is for IDE hard disks only , and can be ignored for MFM and ESDI drives. This entry provides three options: Normal, Lar ge, LBA , or Auto (see below). Set MODE to the Normal for IDE hard disk drives smaller than 528MB; set it to LBA for drives over 528MB that support Logical Block Addressing (LBA) to allow larger IDE hard disks; set it to Lar ge for drives over 528MB that do not support LBA. Lar ge type of drive can only be used with MS-DOS and is very uncommon. Most IDE drives over 528MB support the LBA mode.
ASUS MEL-M User’ s Manual 40 IV . BIOS SETUP IV . BIOS Standard CMOS Auto detection of hard disks on bootup For each field: Primary Master , Primary Slave, Secondary Master , and Secondary Slave, you can select Auto under the TYPE and MODE fields. This will enable auto detection of your IDE hard disk during bootup. This will allow you to change your hard disks (with the power of f) and then power ON without having to reconfigure your hard disk type. If you use older hard disks that do not support this feature, then you must configure the hard disk in the standard method as described earlier by the “User” option. NOTE: After the IDE hard disk drive information has been entered into BIOS, new IDE hard disk drives must be partitioned (such as with FDISK) and then formatted before data can be read from and write on. Primary IDE hard disk drives must have its partition set to active (also possible with FDISK). NOTE: SETUP Defaults are noted in parenthesis next to each function heading. Drive A / Drive B (None) These fields record the types of floppy disk drives installed in your system. The available options for drives A and B are: 360K, 5.25 in.; 1.2M, 5.25 in.; 720K, 3.5 in.; 1.44M, 3.5 in.; 2.88M, 3.5 in.; None T o enter the configuration value for a particular drive, highlight its corresponding field and then select the drive type using the <page up>/<page down> or < >/<-> keys. Floppy 3 Mode Support (Disabled) This is the Japanese standard floppy drive. The standard stores 1.2MB in a 3.5inch diskette. This is normally disabled but you may choose from either: Drive A, Drive B, Both, and Disabled V ideo (EGA/VGA) Set this field to the type of video display card installed in your system. The options are EGA/VGA , CGA 40, CGA 80 , and MONO (for Hercules or MDA) . If you are using a VGA or any higher resolution card, choose EGA/VGA . Halt On (All Errors) This field determines which types of errors will cause the system to halt. Choose from All Err ors ; No Err ors ; All , But Keyboar d, All ,But Diskette ; and All,But Disk/Key .
ASUS MEL-M User’ s Manual 41 IV . BIOS SETUP IV . BIOS BIOS Features BIOS Features Setup The “BIOS Features Setup” option consists of configuration entries that allow you to improve your system performance, or let you set up some system features accord- ing to your preference. Some entries are required by the motherboard’ s design to remain in their default settings. A section at the lower right of the screen displays the control keys you can use. T ake note of these keys and their respective uses. If you need information on a particular entry , highlight it and then press <F1>. A pop-up help menu will appear to provide you with the information you need. <F5> loads the last set values, <F6> and <F7> loads the BIOS default values and Setup default values, respectively . NOTE: SETUP Defaults are noted in parenthesis next to each function heading. Details of BIOS Features Setup CPU Internal Cor e Speed This function is reserved for future use and is currently disabled. Boot V irus Detection (Enabled) This field allows you to set boot virus detection, ensuring a virus-free boot sector . This new antivirus solution is unlike native BIOS tools, which of fer limited virus protection typically by write-protecting the partition table. W ith this new solution, your computer is protected against boot virus threats earlier in the boot cycle, that is, before they have a chance to load into your system. This ensures your computer boots to a clean operating system. The system halts and displays a warning message when it detects a virus. If this occurs, you can either allow the operation to continue or use a virus-free bootable floppy disk to restart and investigate your system. Be- cause of conflicts with new operating systems, for example, during installation of new software, you may have to set this to Disabled to prevent write errors.
ASUS MEL-M User’ s Manual 42 IV . BIOS SETUP IV . BIOS BIOS Features CPU Level 1 Cache / CPU Level 2 Cache (Enabled) These fields allow you to choose from the default of Enabled or choose Disabled to turn ON or OFF the CPU’ s Level 1 and Level 2 built-in cache. CPU Level 2 Cache ECC Check (Disabled) This function controls the ECC check capability in the CPU level 2 cache. BIOS Update (Enabled) This functions as an update loader integrated into the BIOS to supply the processor with the required data. The BIOS will load the update on all processors during system bootup in the default position of Enabled . Quick Power On Self T est (Enabled) This field speeds up the Power-On Self T est (POST) routine by skipping retesting a second, third, and forth time. Setup default setting for this field is Enabled . A complete test of the system is done on each test. HDD Sequence SCSI/IDE First (IDE) When using both SCSI and IDE hard disk drives, IDE is always the boot disk using drive letter C (default setting of IDE). This new feature allows a SCSI hard disk drive to be the boot disk when set to SCSI. This allows multiple operating systems to be used on both IDE and SCSI drives or the primary operating system to boot using a SCSI hard disk drive. Boot Sequence (A,C) This field determines where the system looks first for an operating system. Options are A,C ; C,A; A,CDROM,C ; CDROM,C,A; D,A ; E,A ; F, A ; C only ; LS/ZIP , C; LAN,A,C ; and LAN,C,A . The setup default setting, A, C, is to check first the floppy disk and then the hard disk drive. Boot Up Floppy Seek (Disabled) When enabled, the BIOS will seek drive A once. Floppy Disk Access Control (R/W) This allows protection of files from the computer system to be copied to floppy disks by allowing the setting of Read Only to only allow reads from the floppy disk drive but not writes. The setup default R/W allows both reads and writes. IDE HDD Block Mode Sectors (HDD MAX) This field enhances hard disk performance by making multi-sector transfers instead of one sector per transfer . Most IDE drives, except older versions, can utilize this feature. Selections are HDD MAX , Disabled , 2, 4, 8, 16, and 32. HDD S.M.A.R.T . capability (Disabled) This allows the enabling or disabling of the S.M.A.R.T . (Self-Monitoring, Analysis and Reporting T echnology) system which utilizes internal hard disk drive monitor - ing technology . This feature is normally disabled because system resources used in this feature may decrease system performance.
ASUS MEL-M User’ s Manual 43 IV . BIOS BIOS Features PS/2 Mouse Function Contr ol (Auto) The default of Auto allows the system to detect a PS/2 mouse on bootup. If detected, IRQ12 will be used for the PS/2 mouse. IRQ12 will be reserved for expansion cards if a PS/2 mouse is not detected. Enabled will always reserve IRQ12, whether on bootup a PS/2 mouse is detected or not. OS/2 Onboard Memory > 64M (Disabled) When using OS/2 operating systems with installed DRAM of greater than 64MB, you need to set this option to Enabled otherwise leave this on Disabled . ...................................................................................................................................... PCI/VGA Palette Snoop (Disabled) Some display cards that are nonstandard VGA such as graphics accelerators or MPEG V ideo Cards may not show colors properly . The setting Enabled should correct this problem. Otherwise leave this on the setup default setting of Disabled . V ideo ROM BIOS Shadow (Enabled) This field allows you to change the video BIOS location from ROM to RAM. Relo- cating to RAM enhances system performance, as information access is faster than the ROM. C8000-CBFFF to DC000-DFFFF (Disabled) These fields are used for shadowing other expansion card ROMs. If you install other expansion cards with ROMs on them, you will need to know which addresses the ROMs use to shadow them specifically . Shadowing a ROM reduces the memory available between 640K and 1024K by the amount used for this purpose. Boot Up NumLock Status (On) This field enables users to activate the Number Lock function upon system boot. T ypematic Rate Setting (Disabled) When enabled, you can set the two typematic controls listed next. Setup default setting is Disabled . T ypematic Rate (Chars/Sec) (6) This field controls the speed at which the system registers repeated keystrokes. Options range from 6 to 30 characters per second. Setup default setting is 6; other settings are 8 , 10 , 12 , 15 , 20 , 24 , and 30. T ypematic Delay (Msec) (250) This field sets the time interval for displaying the first and second characters. Four delay rate options are available: 250, 500 , 750, and 1000 . Security Option (System) When you specify a Supervisor Passwor d and/or User Passwor d (explained later in this section), the Security Option field determines when the system prompts for the password. The default setting is System, where the system prompts for the User Password every time you start your system. The other option is Setup, where the system goes through its startup routine unless the Setup utility is called, when the system prompts for the Supervisor Password. IV . BIOS SETUP
ASUS MEL-M User’ s Manual 44 IV . BIOS SETUP IV . BIOS Chipset Features Chipset Features Setup The “Chipset Features Setup” option controls the configuration of the board’ s chipset. NOTE: SETUP Defaults are noted in parenthesis next to each function heading. Details of Chipset Features Setup EDO Auto Configuration (60ns DRAM) For EDO DRAM only The default setting of 60ns DRAM sets the optimal timings for items 2 through 5 for 60ns DRAM modules. If you are using 70ns DRAM modules, you must change this item to 70ns DRAM. See 2. System Memory in section III for DRAM installation information. SDRAM Configuration (12ns SDRAM) For SDRAM only This sets the optimal timings of settings for items 2–5, depending on the memory modules that you are using. This 8-pin serial EEPROM device stores critical param- eter information about the module, such as memory type, size, speed, voltage inter - face, and module banks. The default setting is 12ns SDRAM . If your DIMM mod- ules are all 10ns SDRAM, you may set this to 10ns SDRAM. SDRAM RAS to CAS Delay (Auto) This controls the latency between SDRAM active command and the read/write com- mand. Leave on default setting. SDRAM RAS Pr echarge T ime (Auto) This controls the idle clocks after issuing a prechar ge command to SDRAM. Leave on default setting. MA W ait State (Auto) This controls the leadoff clocks for CPU read cycles. Leave on default setting. SDRAM Banks Close Policy (Page-Miss) Leave on default setting.
ASUS MEL-M User’ s Manual 45 IV . BIOS SETUP IV . BIOS Chipset Features 16-bit I/O Recovery T ime (1 BUSCLK) / 8-bit I/O Recovery T ime (1 BUSCLK) T iming for 16-bit and 8-bit ISA cards, respectively . Leave on default setting. Graphics Apertur e Size (64MB) Memory-mapped, graphics data structures can reside in a Graphics Aperture. Leave on default setting. V ideo Memory Cache Mode (UC) USWC (uncacheable, speculative write combining) is a new cache technology for the video memory of the processor . It can greatly improve the display speed by caching the display data. Y ou must leave this on the default setting of UC (uncacheable) if your display card cannot support this feature, otherwise your sys- tem may not boot. PCI 2.1 Support (Enabled) This function allows you to enable or disable PCI 2.1 features including passive release and delayed transaction. Leave Enabled (default setting) for PCI 2.1 compliancy . Memory Hole At 15M–16M (Disabled) Enabling this feature reserves 15MB to 16MB memory address space to ISA expan- sion cards that specifically require this setting. This makes the memory from 15MB and up unavailable to the system. Expansion cards can only access memory up to 16MB. The default is Disabled . DRAM ar e xx bits wide If all your DIMMs have ECC (e.g., 8 chips 1 ECC chip), they are considered 72bits and the following will be displayed: If your DIMMs do not have ECC (e.g., 8 chips), they are considered 64 bits and the following will be displayed instead: Data Integrity Mode (Non-ECC) Non-ECC has byte-wise write capability but no provision for protecting data integrity in the memory module array . EC-Only data errors are detected but not corrected. ECC with hardware scrubbing allows a detection of single-bit and multiple-bit errors and recovery of single-bit errors. (See 2. System Memory, section III for more infor- mation on memory modules.) .................................................................................................................................... Onboard FDC Contr oller (Enabled) When Enabled , this field allows you to connect your floppy disk drives to the onboard floppy disk drive connector instead of a separate controller card. If you want to use a dif ferent controller card to connect the floppy disk drives, set this field to Disabled .
ASUS MEL-M User’ s Manual 46 IV . BIOS SETUP Onboard FDC Swap A & B (No Swap) This field allows you to reverse the hardware drive letter assignments of your floppy disk drives. T wo options are available: No Swap and Swap AB . If you want to switch drive letter assignments through the onboard chipset, set this field to Swap AB . Onboard Serial Port 1 (3F8H/IRQ4) Settings are 3F8H/IRQ4 , 2F8H/IRQ3, 3E8H/IRQ4, 2E8H/IRQ10, and Disabled for the onboard serial connector . Onboard Serial Port 2 (2F8H/IRQ3) Settings are 3F8H/IRQ4, 2F8H/IRQ3, 3E8H/IRQ4, 2E8H/IRQ10, and Disabled for the onboard serial connector . Onboard Parallel Port (378H/IRQ7) This field sets the address of the onboard parallel port connector . Y ou can select either: 3BCH / IRQ 7, 378H / IRQ 7, 278H / IRQ 5, Disabled. If you install an I/O card with a parallel port, ensure that there is no conflict in the address assignments. The PC can support up to three parallel ports as long as there are no conflicts for each port. Parallel Port Mode (ECP EPP) This field allows you to set the operation mode of the parallel port. The setting Normal , allows normal-speed operation but in one direction only; EPP allows bidi- rectional parallel port operation at maximum speed; ECP allows the parallel port to operate in bidirectional mode and at a speed faster than the maximum unidirectional data transfer rate; ECP EPP allows normal speed operation in a two-way mode. ECP DMA Select (3) This selection is available only if you select ECP or ECP EPP in the Parallel Port Mode . Select either DMA Channel 1, 3, or Disable . UAR T2 Use Infrared (Disabled) When enabled, this field activates the onboard infrared feature and sets the second serial UAR T to support the infrared module connector on the motherboard. If your system already has a second serial port connected to the onboard COM2 connector , it will no longer work if you enable the infrared feature. By default, this field is set to Disabled , which leaves the second serial port UAR T to support the COM2 serial port connector . See IrDA-compliant infrar ed module connector under section III . Onboard PCI IDE Enable (Both) Y ou can select to enable the primary IDE channel, secondary IDE channel, both, or disable both channels (for systems with only SCSI drives). IDE Ultra DMA Mode (Auto) This field autodetects Ultra DMA capability (for improved transfer speeds and data in- tegrity) for compatible IDE devices. Set to Disable to suppress Ultra DMA capability . IDE 0 Master/Slave PIO/DMA Mode, IDE 1 Master/Slave PIO/DMA Mode (Auto) Each channel (0 and 1) has both a master and a slave making four IDE devices possible. Because each IDE device may have a dif ferent Mode timing ( 0, 1, 2, 3, 4), it is necessary for these to be independent. The default setting of Auto will allow autodetection to ensure optimal performance IV . BIOS Chipset Features
ASUS MEL-M User’ s Manual 47 IV . BIOS SETUP IV . BIOS Power Management Power Management Setup The “Power Management Setup” option allows you to reduce power consumption. This feature turns OFF the video display and shuts down the hard disk after a period of inactivity . NOTE: SETUP Defaults are noted in parenthesis next to each function heading. Details of Power Management Setup Power Management (User Define) This field acts as the master control for the power management modes. Max Saving puts the system into power saving mode after a brief period of system inactivity; Min Saving is almost the same as Max Saving except that this time the system inac- tivity period is longer; Disable disables the power saving features; User Define al- lows you to set power saving options according to your preference. IMPOR T ANT : Advanced Power Management (APM) should be installed to keep the system time updated when the computer enters suspend mode activated by the BIOS Power Management. For DOS environments, you need to add the statement, DEVICE=C:\DOS\POWER.EXE, in you CONFIG.SYS. For W indows 3.x and W in- dows 95, you need to install W indows with the APM feature. A battery and power cord icon labeled “Power” will appear in the “Control Panel.” Choose “Advanced” in the Power Management Field. W indows 98, by default, installs the APM. V ideo Off Option (Suspend -> Off ) This field determines when to activate the video of f feature for monitor power management. The settings are Always On and Suspend -> Off.
ASUS MEL-M User’ s Manual 48 IV . BIOS SETUP IV . BIOS Power Management V ideo Off Method (DPMS OFF) This field defines the video off features. The following options are available: DPMS OFF , DPMS Reduce ON , Blank Scr een , V/H SYNC Blank, DPMS Standby , and DPMS Suspend . The DPMS (Display Power Management System) features allow the BIOS to control the video display card if it supports the DPMS feature. Blank Scr een only blanks the screen (use this for monitors without power management or “green” features. If set up in your system, your screen saver will not display with Blank Scr een selected). V/H SYNC Blank blanks the screen and turns OFF vertical and horizontal scanning. ....................................................................................................................................... PM T imers This section controls the time-out settings for the Power Management scheme. The fields included in this section are “HDD Power Down”, which places the hard disk into its lowest power consumption mode, and the “Suspend Mode” which suspends the CPU. The system automatically “wakes up” from any power saving mode when there is system activity such as when a key is pressed from the keyboard, or when there is activity detected from the enabled IRQ channels. HDD Power Down (Disable) Shuts down any IDE hard disk drives in the system after a period of inactivity . This time period is user-configurable to 1–15 Min or Disable . This feature does not affect SCSI hard drives. Suspend Mode (Disable) Sets the period of time after which the suspend mode activates: 30 sec, 1 Min, 2 Min , 4 Min , 8 Min , 20 Min , 30 Min , 40 Min , 1 Hour , and Disable . ....................................................................................................................................... Power Up Control This section determines the ways the system can be controlled when it is started or restarted, when modem activity is detected, or when power to the computer is inter - rupted and reapplied. The Soft-Of f mode refers to powering OFF the system through a momentary button switch (A TX switch) or through the software as opposed to disconnecting the AC power by way of a rocker switch or other means. PWR Button < 4 Secs (Soft Off) When set to Soft Off, the A TX switch can be used as a normal system power-of f button when pressed for less than 4 seconds. Suspend allows the button to have a dual function where pressing less than 4 seconds will place the system in sleep mode. Regardless of the setting, holding the A TX switch for more than 4 seconds will power OFF the system.
ASUS MEL-M User’ s Manual 49 IV . BIOS SETUP IV . BIOS Power Management PWR Up On Modem Act (Enabled) This allows either settings of Enabled or Disabled for powering up the computer (turns the A TX power supply ON) when the modem receives a call while the computer is i n the Soft- Of f mode. NOTE: The computer cannot receive or transmit data until the computer and appli- cations are fully running, thus connection cannot be made on the first try . T urning an external modem OFF and then back ON while the computer is OFF causes an initialization string that will also cause the system to power ON. AC PWR Loss Restart (Disabled) This allows you to set whether you want your system to boot up after the power has been interrupted. Disabled leaves your system OFF after reapplying power and En- abled boots up your system after reapplying power . W ake On LAN (Enabled) This allows you to remotely power up your system through your network by send- ing a wake-up frame or signal. W ith this feature, you can remotely upload/download data to/from systems during of f-peak hours. Enabled sets this feature. IMPOR T ANT : This feature requires the optional network interface and an A TX power supply with at least 720mA 5V standby power . Automatic Power Up (Disabled) This allows you to have an unattended or automatic power up of your system. Y ou may configure your system to power up at a certain time of the day by selecting Everyday , which will allow you to set the time or at a certain time and day by selecting By Date. ..................................................................................................................................... Fan Monitor (xxxxRPM) The onboard hardware monitor is able to detect the Chassis Fan Speed, CPU Fan Speed, and the Power Supply Fan Speed in Rotations Per Minute (RPM). Set to Ignor e if one of these are not used so that error messages will not be given. ..................................................................................................................................... Thermal Monitor (xxxC/xxxF) The onboard hardware monitor is able to detect the CPU and MB (motherboard) tem- peratures. Set to Ignor e only if necessary . ..................................................................................................................................... V oltage Monitor (xx.xV) The onboard hardware monitor is able to detect the voltages put out by the voltage regulators. Set to Ignor e only if necessary . NOTE: If any of the monitored items are out of range, an error message will appear: “Hardware Monitor found an error , enter POWER MANAGEMENT SETUP for details”. Y ou will then be prompted to “Press F1 to continue, DEL to enter SETUP”.
ASUS MEL-M User’ s Manual 50 IV . BIOS SETUP Plug & Play / PCI IV . BIOS PNP and PCI Setup The “PNP and PCI Setup” option configures the PCI bus slots. All PCI bus slots on the system use INT A#, thus all installed PCI cards must be set to this value. NOTE: SETUP Defaults are noted in parenthesis next to each function heading. Details of PNP and PCI Setup PNP OS Installed (No) This field allows you to use a Plug-and-Play (PnP) operating system to configure the PCI bus slots instead of using the BIOS. Thus interrupts may be reassigned by the OS when Ye s is selected. When a non-PnP OS is installed or to prevent reassign- ing of interrupt settings, select the default setting of No . Slot 1 IRQ / Slot 3 IRQ (Auto) Thes e fields set how IRQ use is determined for each PCI slot. The default setting for each field is Auto, which uses auto-routing to determine IRQ use. The other options are manual settings of NA, 3 , 4 , 5, 7, 9, 10, 1 1, 12, 14 or 15 for each slot. PCI Latency T imer (32 PCI Clock) The default setting of 32 PCI Clock enables maximum PCI performance for this motherboard. IRQ xx Used By ISA (No/ICU) These fields indicate whether or not the displayed IRQ for each field is being used by a legacy (non-PnP) ISA card. T wo options are available: No/ICU and Ye s . The first option, the default value, indicates either that the displayed IRQ is not used or an ISA Configuration Utility (ICU) is being used to determine if an ISA card is using that IRQ. If you install a legacy ISA card that requires a unique IRQ, and you are not using an ICU, you must set the field for that IRQ to Ye s . For example: If you install a legacy ISA card that requires IRQ 10, then set IRQ10 Used By ISA to Ye s . ......................................................................................................................................
ASUS MEL-M User’ s Manual 51 IV . BIOS SETUP IV . BIOS Plug & Play / PCI DMA x Used By ISA (No/ICU) These fields indicate whether or not the displayed DMA channel for each field is being used by a legacy (non-PnP) ISA card. A vailable options include: No/ICU and Ye s . The first option, the default setting, indicates either that the displayed DMA channel is not used or an ICU is being used to determine if an ISA card is using that channel. If you install a legacy ISA card that requires a unique DMA channel, and you are not using an ICU, you must set the field for that channel to Ye s . ISA MEM Block BASE (No/ICU) This field allows you to set the base address and block size of a legacy ISA card that uses any memory segment within the C800H and DFFFH address range. If you have such a card, and you are not using an ICU to specify its address range, select a base address from the six available options; the ISA MEM Block SIZE field will then appear for selecting the block size. If you have more than one legacy ISA card in your system that requires to use this address range, you can increase the block size to either 8K, 16K, 36K, or 64K. If you are using an ICU to accomplish this task, leave ISA MEM Block BASE to its default setting of No/ICU . Symbios SCSI BIOS (Auto) Auto allows the BIOS to detect whether you have a Symbios SCSI card, if detected the onboard Symbios BIOS will be enabled, if not then it will be disabled. Disabled prevents the onboard Symbios BIOS to be enabled so that the external Symbios SCSI card’ s own BIOS can be used instead. Note: If your Symbios SCSI card does not have a BIOS, the Symbios SCSI card will not function. USB IRQ (Enabled) Enabled reserves an IRQ# for the USB to work, Disabled does not allow the USB to have an IRQ# and therefore prevents the USB from functioning. If you are not using any USB devices, you may set this feature to Disabled to save an extra IRQ# for expansion cards. VGA BIOS Sequence (PCI/AGP) Y ou can select the search order for your VGA card(s). PCI/AGP will detect PCI VGA cards before AGP , and AGP/PCI will detect AGP cards before PCI VGA.
ASUS MEL-M User’ s Manual 52 IV . BIOS SETUP Load Defaults IV . BIOS Load BIOS Defaults The “Load BIOS Defaults” option allows you to load the troubleshooting default values permanently stored in the BIOS ROM. These default settings are non-opti- mal and disable all high performance features. T o load these default settings, high- light “Load BIOS Defaults” on the main screen and then press <Enter>. The system displays a confirmation message on the screen. Press <Y> and then <Enter> to confirm. Press <N> and then <Enter> to abort. This feature does not af fect the fields on the Standard CMOS Setup screen. Load Setup Defaults The “Load Setup Defaults” option allows you to load the default values to the sys- tem configuration fields. These default values are the optimized configuration set- tings for the system. T o load these default values, highlight “Load Setup Defaults” on the main screen and then press <Enter>. The system displays a confirmation message on the screen. Press <Y> and then <Enter> to confirm. Press <N> and then <Enter> to abort. This feature does not af fect the fields on the Standard CMOS Setup screen.
ASUS MEL-M User’ s Manual 53 IV . BIOS SETUP Supervisor Password and User Password These two options set the system passwords. “Supervisor Password” sets a password that will be used to protect the system and the Setup utility; “User Password” sets a password that will be used exclusively on the system. By default, the system comes without any passwords. T o specify a password, highlight the type you want and then press <Enter>. A password prompt appears on the screen. T aking note that the password is case sensitive, and can be up to 8 alphanumeric characters long, type in your password and then press <Enter>. The system confirms your password by asking you to type it again. After setting a password, the screen automatically reverts to the main screen. T o implement password protection, specify in the “Security Option” field of the BIOS Features Setup screen when the system will prompt for the password. If you want to disable either password, press <Enter> instead of entering a new password when the “Enter Password” prompt appears. A message confirms the password has been disabled. Forgot the password? If you for got the password, you can clear the password by erasing the CMOS Real T ime Clock (R TC) RAM. The RAM data containing the password information is powered by the onboard button cell battery . T o erase the R TC RAM: (1) Unplug your computer , (2) Short the solder points, (3) T urn ON your computer , (4) Hold down <Delete> during bootup and enter BIOS setup to re-enter user preferences. 0 1 Short solder points to Clear CMOS CLRTC MEL-M Clear RTC RAM 0 1 0 1 R MEL-M IV . BIOS Passwords
ASUS MEL-M User’ s Manual 54 IV . BIOS SETUP IV . BIOS Hard Disk Detect IDE HDD Auto Detection The “IDE HDD Auto Detection” option detects the parameters of an IDE hard disk drive, and automatically enters them into the Standard CMOS Setup screen. Up to four IDE drives can be detected, with parameters for each listed inside the box. T o accept the optimal entries, press <Y> or else select from the numbers dis- played under the OPTIONS field (2, 1, 3 in this case); to skip to the next drive, press <N>. If you accept the values, the parameters will appear listed beside the drive letter on the screen. The process then proceeds to the next drive letter . Pressing <N> to skip rather than to accept a set of parameters causes the program to enter zeros after that drive letter . Remember that if you are using another IDE controller that does not feature En- hanced IDE support for four devices, you can only install two IDE hard disk drives. Y our IDE controller must support the Enhanced IDE features in order to use Drive E and Drive F . The onboard PCI IDE controller supports Enhanced IDE, with two connectors for connecting up to four IDE devices. If you want to use another con- troller that supports four drives, you must disable the onboard IDE controller in the Chipset Features Setup screen. When auto-detection is completed, the program automatically enters all entries you accepted on the field for that drive in the Standard CMOS Setup screen. Skipped entries are ignored and are not entered in the screen. If you are auto-detecting a hard disk that supports the LBA mode, three lines will appear in the parameter box. Choose the line that lists LBA for an LBA drive. Do not select Lar ge or Normal. The auto-detection feature can only detect one set of parameters for a particular IDE hard drive. Some IDE drives can use more than one set. This is not a problem if the drive is new and empty .
ASUS MEL-M User’ s Manual 55 IMPOR T ANT : If your hard disk was already formatted on an older previous system, incorrect parameters may be detected. Y ou will need to enter the correct parameters manually or use low-level format if you do not need the data stored on the hard disk. If the parameters listed dif fer from the ones used when the disk was formatted, the disk will not be readable. If the auto-detected parameters do not match the ones that should be used for your disk, do not accept them. Press <N> to reject the presented settings and enter the correct ones manually from the Standard CMOS Setup screen. Save & Exit Setup Select this option to save into the CMOS memory all modifications you specified during the current session. T o save the configuration changes, highlight the “Save & Exit Setup” option on the main screen, type “Y”, and then press <Enter>. Exit Without Saving Select this option to exit the Setup utility without saving the modifications you specify during the current session. T o exit without saving, highlight the “Exit W ithout Sav- ing” option on the main screen and then press <Enter>. IV . BIOS SETUP IV . BIOS Save & Exit
ASUS MEL-M User’ s Manual 56 (This page was intentionally left blank.) IV . BIOS SETUP
ASUS MEL-M User’ s Manual 57 V . SUPPOR T CD V . SUPPOR T CD R V . SUPPORT CD
58 ASUS MEL-M User ’ s Manual V . SUPPOR T CD Support CD Main Menu ...................................................................... 59 A. PC Pr obe ........................................................................................... 61 Installing ASUS PC Probe ................................................................ 62 Starting ASUS PC Probe ................................................................... 63 Uninstalling Programs ...................................................................... 64 Using the ASUS PC Probe ................................................................ 64 Installing the Audio Driver ............................................................... 67 First T ime Installation ................................................................. 67 B. Audio Driver ..................................................................................... 67 Updating the Driver .......................................................................... 68 Installing Y amaha XGstudio ............................................................. 69 C. Y amaha XGstudio ............................................................................ 69 Using Y amaha XGstudio Player ....................................................... 70 Y amaha XGstudio Player Control Panel ..................................... 70 T roubleshooting .......................................................................... 71 About the driver .......................................................................... 71 Remarks ....................................................................................... 72 Using Y amaha XGstudio Mixer ........................................................ 73 Y amaha XGstudio Mixer Control Panel ..................................... 73 Installing Y amaha Ystation Player .................................................... 75 D. YST A TION32 .................................................................................. 75 YST A TION32 ................................................................................... 76 Introduction ................................................................................. 76 System requirements ................................................................... 76 Using Y amaha Ystation Player .................................................... 76 T able of Contents V . SUPPORT CD
ASUS MEL-M User’ s Manual 59 V . SUPPOR T CD Support CD Main Menu Insert your CD or double-click your CD drive icon in “My Computer” to bring up the autorun menu or run Setup.exe in the root directory of the ASUS Support CD. NOTE: The support CD version and contents are constantly updated without notice. LDCM Local Setup: Installs the LANDesk Client Manager software to monitor the local system. Please view the user ’ s manual in Adobe Acrobat PDF format lo- cated in the “LDCM” directory on the ASUS Support CD. LDCM Administrator Setup: Installs the LANDesk Client Manager software to monitor PC systems on the network within the same bridge address with the Local software installed. Please view the user ’ s manual in Adobe Acrobat PDF format located in the “LDCM” directory on the ASUS Support CD. ASUS PC Probe Setup: Installs a simple utility to monitor your computer ’ s fan, temperature, and voltages. ( NOTE: W ill not run with LDCM installed.) Please view the user ’ s manual in Adobe Acrobat PDF format located in the “ASUSLM” direc- tory on the ASUS Support CD or see PC Probe section in this user ’ s manual. Adobe Acr obat Reader: Installs the Adobe Acrobat Reader software necessary to view the user ’ s manuals in Adobe Acrobat PDF format. Install Audio Driver: Installs the audio driver for the onboard audio chipset. Please see the audio section in this user ’ s manual. Install Y amaha XGstudio: Installs the Cyber Studio player for playing MIDI files. Install Y amaha YStation Player: Installs YStation32, which consists of CD, MIDI, and W A VE players. Main Menu V . SUPPORT CD
60 ASUS MEL-M User ’ s Manual V . SUPPOR T CD Install PCCillin: Installs the PC-cillin virus protection software. Please view the online help if you have any questions. Browse this CD: Allows you to see the contents of the ASUS Support CD. T echnical Support Form: V iew the ASUS T echnical Support Form. LDCM Introduce (MPEG VCD): V iew a video on the LDCM features. Read Me: V iew additional notes concerning this product. Exit: Exit the current menu. Main Menu V . SUPPORT CD
ASUS MEL-M User’ s Manual 61 V . SUPPOR T CD R PC Probe USER’S MANUAL A. PC Probe V . SUPPORT CD
62 ASUS MEL-M User ’ s Manual V . SUPPOR T CD Installing ASUS PC Probe The ASUS PC Probe is a convenient utility to monitor the computer system’ s vital components: fan rotations, voltages, and temperatures. NOTE: ASUS PC Probe will not run if other hardware monitoring pro- grams, such as Intel’ s LDCM utility , are installed. 5. Click OK when the installation is completed. PC Probe will run auto- matically . 1. Click ASUS PC Pr obe Setup on the main menu. 2 . Click OK after reading the welcome message. 3. Click the ASUS button. 4 . Make any desired setting changes. Then click Continue . A. PC Probe V . SUPPORT CD
ASUS MEL-M User’ s Manual 63 V . SUPPOR T CD Starting ASUS PC Probe When ASUS PC Probe starts, a splash screen appears allowing you to “Show Monitor” or “Hide”. Y ou can select whether you want the splash screen to show the next time it opens. Click ASUS PC Pr obe from the Start button to run the utility if you exit the utility or did not set it to “Run when W indows Starts.” The PC Probe icon will appear on the taskbar ’ s system tray indicating that ASUS PC Probe is running. Left-clicking the icon will allow you to see your PC status. A. PC Probe V . SUPPORT CD
64 ASUS MEL-M User ’ s Manual V . SUPPOR T CD 2. Uninstall other hardware monitoring pro- grams if you want to use the ASUS PC Probe by running “Add/Remove Pro- grams” from the Control Panel. Uninstalling Programs Uninstalling programs is a basic component within W indows 95. Y ou may use this function if individual programs does not provide their own uninstallation methods. The ASUS PC Probe can also be removed by the same method. 1. If other hardware monitoring programs such as the Intel LDCM are installed, the ASUS PC Probe will not run. 3. Select the program you wish to remove and click Add/Remove. A. PC Probe V . SUPPORT CD
ASUS MEL-M User’ s Manual 65 V . SUPPOR T CD Using the ASUS PC Probe Analog view of PC’ s fan rotation Digital view of PC’ s fan rotation PC’ s Fan warning threshold adjustment Fan Rotation Status PC T emperature Status Analog view of PC’ s temperature Digital view of PC’ s temperature Digital view of PC’ s temperature warning threshold T emperature W arning threshold adjustment Analog view of PC’ s voltages Digital view of PC’ s voltages Upper warning threshold adjustment Lower warning threshold adjustment Digital view of PC’ s voltage warning thresholds PC V oltage Status PC’ s Fan Rotations per minute PC’ s T emperature ˚C/˚F PC’ s V oltages PC Status Summary A. PC Probe V . SUPPORT CD
66 ASUS MEL-M User ’ s Manual V . SUPPOR T CD Right clicking the P C Probe icon will bring up a menu to turn on, off, or exit ASUS PC Probe. The icon appears dimmed when off or un- available. When there is a problem, the icon’ s head mirror flashes red, the PC speaker beeps, and the ASUS PC Probe monitor is displayed. Using the ASUS PC Probe PC Probe T ask Bar Icon PC Probe System Info. Get information on your mainboar d and BIOS fr om this scr een. Change PC Pr obe r efr esh times her e Click the items you wish to r eset to its default values and click this button. Click her e to start PC Pr obe each time you enter W indows. PC Probe Settings A. PC Probe V . SUPPORT CD
V . SUPPOR T CD ASUS MEL-M User’ s Manual B. Audio Driver V . SUPPORT CD Installing the Audio Driver First T ime Installation 1. Reinsert your ASUS Support CD or double-click your CD drive icon in My Computer to Bring up the autorun screen or run Setup.exe in the root directory of the CD. For Windows 95 1. When the New Har dwar e Found screen prompts for a driver , select Driver from disk provided by hardwar e manufacturer and insert the ASUS Support CD into your CD-ROM drive. 2. Click OK . 3. Click Br owse . 4. Locate the D:\Audio\W in98 folder (where D is your CD-ROM Drive) and click OK . 5. Click OK again and the driver files will be copied. 6. Click Ye s to restart the computer . 2. Click Next when the W elcome screen appears. 3 . Select the Y es, I want to restart my computer now option and click Finish .
68 ASUS MEL-M User ’ s Manual V . SUPPOR T CD Updating the Driver For W indows98, follow the preceding procedure. For W indows 95, the operating system will detect that you have a new PCI Multimedia Device. 1. Click Next when the Update Device W izar d screen appears. 3 . Click Browse to locate the D:\Audio\W in95&98 folder on the ASUS Support CD. 4. Click OK to select the folder . 5. Click OK and your device and driver lo- cation will be shown. Click Finish . 7 . Click Browse and locate the D:\Audio\W in95&98 on the ASUS Support CD again. 2. Click Other Locations to direct the wiz- ard to the audio driver files. 6. Y ou will be prompted to insert the ASUS Support CD. Click OK . 8. Follow the self-explanatory instructions to finish your driver installation. B. Audio Driver V . SUPPORT CD
V . SUPPOR T CD ASUS MEL-M User’ s Manual Installing Y amaha XGstudio 1. Reinsert your ASUS Support CD or double-click your CD drive icon in My Computer to Bring up the autorun screen or run Setup.exe in the root directory of the CD. 4. When the Conditions of use win- dow appears, click Ye s . 2. Click Install Y amaha XGstudio from the main menu. 3. When the Y AMAHA XGstudio window appears, click Next. 4. Follow the onscreen instructions to complete setup. C. Y amaha XGstudio V . SUPPORT CD
70 ASUS MEL-M User ’ s Manual V . SUPPOR T CD Using Y amaha XGstudio Player T o start the Y amaha XGstudio, click Start, point to Programs, point to Y AMAHA XGstudio , and then click XGstudio Player . Y amaha XGstudio Player Control Panel Closes the player . NOTE: Y ou can also close the player by pressing <Alt> <F4>. Minimizes the player to an icon. Displays the Set Play List dialog box where you can create a list of songs to play auto- matically . NOTE: Y ou can also display the Set Play List dialog box by pressing <Ctrl> <O>. Loads and plays the MIDO file currently se- lected in Play List. When all the songs in the Play List have finished, playing stops auto- matically and the song at the beginning of the list is designated as the current-play song. Pauses the playing of a song. Click this but- ton again or click to resume playing. Stops the playing of a song and returns the start-play location to the beginning of the song. Designates the first song in the Play List as the new current-play song. Designates the song just before the currently playing song as the new current-play song. Designates the song after the song currently playing as the new current-play song. Designates the last song in the Play List as the new current-play song. Displays the control panel for the Soft Syn- thesizer features. Speeds up the tempo of the song being played. Slows down the tempo of the song being played. NOTE: The tempo is reset to 0 for each new song. Displays the Set Sound Sour ce dialog box. Displays Help. NOTE: Y ou can also display Help by pressing <F1>. Increases/decreases the volume level of the song being played by dragging the slider up/ down. C. XGstudio Player V . SUPPORT CD
V . SUPPOR T CD ASUS MEL-M User’ s Manual T roubleshooting Cannot install • Do you have the required hardware, such as hard disk and memory? • Do you have the required software, such as MS-DOS and W indows? • Installation may not be possible if you have insuf ficient space on your hard disk. Delete unneeded files to increase the free space on your disk. Does not start • Do you have the required hardware, such as hard disk and memory? • Do you have the required software, such as MS-DOS and W indows? • W ere you able to install using the specified procedure? No sound • Is the MIDI driver correctly installed? • Is the tone generator set correctly? • Is volume set to zero in the XGstudio Player or XGstudio Mixer panels? • If you are using an external tone generator , is the serial or MIDI cable and the audio cables connected correctly? • Are the volumes of your tone generator , audio playback system, and application raised? • If you have connected an external tone generator via a serial cable, is the rear panel select switch set correctly? (For the name of the select switch, refer to the owner's manual for your external tone generator .) • If you are using a Soft Synthesizer , is it set so that the computer sound output is heard correctly? About the driver In order to use XGstudio, the driver must be correctly set and selected. The driver you use will dif fer depending on the type of your tone generator . If you are using an external MIDI tone generator whose HOST connector is connected to the serial port of your computer , you must install the Y AMAHA CBX Driver . T one generator used Driver to select and set Soft Synthesizer S-YG20 Select the Y AMAHA SGMP Driver Soft Synthesizer S-YG50 Select the Y AMAHA SXG50 Driver External Y AMAHA tone generator Select the Y AMAHA CBX Driver (MU80 or MU50 etc.) External tone generator of Refer to the owner's manual for another manufacturer your tone generator . C. XGstudio Player V . SUPPORT CD
72 ASUS MEL-M User ’ s Manual V . SUPPOR T CD Remarks About the video display screen If an A VI file (a file containing motion video data) or a BMP file (a file containing still image data) with the same name as the MIDI file is placed in the same folder as the MIDI file, the motion video or still image will be automatically loaded and dis- played in the screen when the MIDI file is played back. If there is no A VI file or BMP file with the same name as the MIDI file, the DEF AUL T .A VI or DEF AUL T .BMP file found in the same folder as CSMIXER.EXT will be displayed. Sample files are included, but you may provide your own favorite A VI file or BMP file, and click the display screen. A popup menu will appear , allow- ing you to specify the A VI or BMP file. NOTE: The maximum size of the BMP file is 320 x 240 dots. About the voice list file The list of voices (sounds) which is displayed by the voice select button is deter - mined by the voice list file. The voice list will switch between XG format or GM depending on the MIDI file. The voice list file is specified by the CSMIXER.INI file which is created in the W indows folder . By default, it contains the following settings. [XG VOICE] P A TCH=mu50.txt [GM VOICE] P A TCH=gm.txt The XG format uses the MU50 voice list. If you are using an MU80, modify the file to change the line "mu50.txt" to "mu80.txt". This will cause the MU80 voice list to be displayed. [XG VOICE] P A TCH=mu80.txt C. XGstudio Player V . SUPPORT CD
V . SUPPOR T CD ASUS MEL-M User’ s Manual Using Y amaha XGstudio Mixer T o start the Y amaha XGstudio, click Start, point to Programs , point to Y AMAHA XGstudio , and then click XGstudio Mixer . Y amaha XGstudio Mixer Control Panel Image Switcher (A VI file): V ideo image Displays the A VI file with the same name as the MIDI file being played. If one is not available, the preset DEF AUL T . AV I file is played. (BMP file): Still image Displays the BMP file with the same name as the MIDI file being played. If one is not available, the preset DEF AUL T . BMP file is played (LED velocity meter): Animation Displays the volume (amount of velocity) of each MIDI channel. (SCOPE velocity meter): Animation Displays the volume (amount of velocity) of each MIDI channel graphically in a radio chart. (drum and per cussion): Animation Displays animation with lights that match the drums and percussion used in the drum channel (10ch). Smart Arranger Image Switcher Assign Slider Master V olume Slider Exit Song Image Display Area Minimize Transpose Display Panel T empo Display Panel Select Next Select Previous Play Pause Stop Song Name Display Panel Slider Function Realtime Slider V oice Select Channel Mute Channel Solo C. XGstudio Player V . SUPPORT CD
74 ASUS MEL-M User ’ s Manual V . SUPPOR T CD Smart Arranger The Smart Arranger allows you to easily change the mood of a song. Y ou can switch between seven ensemble voice sets with these buttons. T o return to the original voice set, click . Piano Or chestra Mallet T echno Choir Robot Natur e Return C. XGstudio Player V . SUPPORT CD
ASUS MEL-M User’ s Manual 75 V . SUPPOR T CD Installing Y amaha Ystation Player 1. Reinsert your ASUS Support CD or double-click your CD drive icon in My Computer to Bring up the autorun screen or run Setup.exe in the root directory of the CD. 2 . Click Install Y amaha Ystation Player from the main menu. The W el- come screen appears. 3. Click Next . The Setup Options win- dow appears. 4. Click the T ypical button, and follow the onscreen instructions. D. Ystation32 V . SUPPORT CD
76 ASUS MEL-M User ’ s Manual V . SUPPOR T CD YST A TION32 Introduction The YST A TION32 consists of CD, MIDI, and W A VE players. The W A VE compo- nent can record and playback W A V format files. There are six components: Power Control, CD, MIDI, W A VE, Multi, and Mixer . They can be arranged in any order , and it is not necessary for all components to be open all the time. Y ou can play W A VE and MIDI (.W A V and .MID) files simply by dragging and dropping them from the File Manager . System requirements • At least 1MB of available hard disk space • W indows 95,W indowsNT4.0 • Sound board & its W indows driver Using Y amaha Ystation Player T o start the Y amaha Ystation Player , click Start, point to Programs , point to Y amaha , and then click YST A TION32 . D. Ystation32 V . SUPPORT CD
ASUS MEL-M User’ s Manual 77 V . SUPPOR T CD Power Control Component This component manages and launches the other components. W A VE Component This component plays and records W A VE format files. The recording source can be CD(AUX), MIC or LINE. The window display shows the file name, format, and time. MIDI Component This component plays Standard MIDI Files (SMF). The window display shows the file name, tempo, and time. CD Component This component plays audio CDs. The window display shows the track, title, song name, and time. MUL TI Component This component controls simultaneous playback of the CD, MIDI, and W A VE com- ponents. MIXER Component This component controls playback and recording of your sound card. D. Ystation32 V . SUPPORT CD
78 ASUS MEL-M User ’ s Manual V . SUPPOR T CD How to Play Common operations of the CD, MIDI, W A VE, and MUL TI player . Each component has the following basic functions: Play , Stop, Pause, Fast Forward, Rewind. The CD player also has Next and Previous functions. Component buttons are marked with symbols commonly found on audio players. So if you’ve ever used an audio player , you’ll find YST A TION32 operation quite straight- forward. Stop Pause Play Scan backward Scan forward Go to beginning of previous song Go to beginning of next song Show/remove component Open File Open dialog box. Open/close the CD-ROM drive (CD player only) Repeat playback indefinitely (CD player only) If your CD-ROM drive does not support the Eject function, nothing will happen when you click the Eject button. Titling CDs Clicking the Name button on the CD Component accesses the Name CD dialog box shown below . This allows you to enter the CD title and track names. The CD title can be up to 25 characters long. T rack names can be up to 25 characters long, al- though, only the first 22 characters are displayed on the CD Component’ s display . Please click the buttons, and experiment with the YST A TION32! D. Ystation32 V . SUPPORT CD
ASUS MEL-M User’ s Manual 79 V . SUPPOR T CD Playlist The Playlist allows you to arrange CD tracks, MIDI songs, and W A VE sound files into a program of your choice. Playback starts with the first item in the playlist and continues until all items have been played. The Play Mode can be set to Repeat so that the playlist items are played repeatedly . Click the LIST button on the Power Control component. In the Playlist dialog box, shown below , arrange your CD, MIDI, and W A VE data as desired. Y ou can enter the title of your CD. Play Mode When set to Single, the data in the play list is played once. When set to Repeat, the data in the play list is played repeatedly . Clicking the OK button saves the play list in the \W indows\Ystation.ini file. If the currently loaded CD is dif ferent from the one specified in the play list, an error message appears. This means that the song name on the CD does not match that in the play list. In this case you should edit the play list. Otherwise the error message will appear repeatedly . D. Ystation32 V . SUPPORT CD
80 ASUS MEL-M User ’ s Manual V . SUPPOR T CD Configuration Click the CONFIG button on the Power Control component. In the Config dialog box you can configure the YST A TION32. Auto Play When Auto Play is OFF , the W A VE, MIDI, CD, and MIX components open when the YST A TION32 is started. When Auto Play is ON, data registered in the play list plays se- quentially when the YST A TION32 is started. If Play Mode on the PlayList dialog box is set to Repeat and Auto Play is ON , data registered in the play list plays repeatedly when the YST A TION32 is started. Display mode When Auto Play is ON , you can decide which components are dis- played. When set to Select, compo- nents whose box in the Component Select section are checked are displayed. When set to Now Playing, only the component currently playing is displayed. Component Select The Component Select check boxes allow you to select which components are used for Auto Play . Components whose box is checked are used for Auto Play . These settings are active only when the Display mode is set to Select. Recording Mode New Create a new file Overwrite Overwrite the existing file Add Append to the current file Sampling Rate These buttons allow you to set the sampling rate for recording W ave files. T ype These buttons allow you choose either mono or stereo W ave file recording. Data Format These buttons allow you to set the data format to either 8 or 16 bit. D. Ystation32 V . SUPPORT CD
ASUS MEL-M User’ s Manual 81 V . SUPPOR T CD Property Output The playback volume controls whose check boxes are checked will be displayed as mixer components. Up to seven volume controls may be selected. Input The recording volume con- trols whose check boxes are checked will be displayed as mixer components. Up to four volume controls may be se- lected. Error Messages The following is a list of YST A TION32 error messages. “Can’t open window” This message appears if a window cannot be opened when YST A TION32 is started. “Disc not loaded” This message appears if you click the NAME button on the CD Component and no CD is loaded. “The W ave data has changed. Save curr ent changes?” This message appears if you attempt to quit with unsaved changes. “A W ave file with this name already exists. Overwrite?” This message appears if you attempt to save a W ave file using a name that is already used. “Can’t get timer” This message appears during playback if the T imer resources are insufficient. “The CD loaded is differ ent to that in the Playlist” This message appears when you click the LIST button on the Power Component and the currently loaded CD is dif ferent to that specified in the Playlist. D. Ystation32 V . SUPPORT CD
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ASUS MEL-M User’ s Manual 83 APPENDIX DMI Utility Desktop Management Interface (DMI) Introducing the ASUS DMI Configuration Utility This motherboard supports DMI within the BIOS level and provides a DMI Con- figuration Utility to maintain the Management Information Format Database (MIFD). DMI is able to auto-detect and record information pertinent to a computer ’ s system such as the CPU type, CPU speed, and internal/external frequencies, and memory size. The onboard BIOS will detect as many system information as possible and store those collected information in a 4KB block in the motherboard’ s Flash EPROM and allow the DMI to retrieve data from this database. Unlike other BIOS software, the BIOS on this motherboard uses the same technology implemented for Plug and Play to allow dynamic real-time updating of DMI information versus creating a new BIOS image file and requiring the user to update the whole BIOS. This DMI Con- figuration Utility also allows the system integrator or end user to add additional information into the MIFD such as serial numbers, housing configurations, and ven- dor information. Those information not detected by the motherboard BIOS and has to be manually entered through the DMI Configuration Utility and updated into the MIFD. This DMI Configuration Utility provides the same reliability as PnP updat- ing and will prevent the refreshing failures associated with updating the entire BIOS. Starting the ASUS DMI Configuration Utility The DMI Configuration Utility (DMICFG2.EXE) must be used in real mode in order for the program to run, the base memory must be at least 180K. Memory managers like HIMEM.SYS (required by windows) must not be installed. Y ou can boot up from a system diskette without AUTOEXEC.BA T and CONFIG.SYS files, “REM” HIMEM.SYS in the CONFIG.SYS, or press <Shift> <F5> during bootup to bypass your AUTOEXEC.BA T and CONFIG.SYS files. 1. In W indows, copy DMICFG.EXE to your hard disk drive. 2. Restart your computer and press <Shift> <F5> during bootup to enter safe mode command prompt. 3. Go to the directory containing DMICFG.EXE. 4. T ype DMICFG and press <Enter> to run. APPENDIX
84 ASUS MEL-M User ’ s Manual Using the ASUS DMI Configuration Utility NOTE: The following screen displays are provided as examples only and may not reflect the screen contents on your system. Edit DMI (or delete) Use the ←→ (left-right) cursors to move the top menu items and the ↑↓ (up-down) cursor to move between the left hand menu items. The bottom of the screen will show the available keys for each screen. Press enter at the menu item to enter the right hand screen for editing. “Edit component” appears on top. The reversed color field is the current cursor position and the blue text are available for editing. The orange text shows auto-detected information and are not available for editing. The blue text “Press [ENTER] for detail” contains a second pop-up menu is available, use the - (plus-minus) keys to change the settings. Enter to exit and save, ESC to exit and not save . If the user has made changes, ESC will prompt you to answer Y or N. Enter Y to go back to the left-hand screen and save, enter N to go back to left-hand screen and not save . If editing has not been made, ESC will send you back to the left hand menu without any messages. Notes A heading, *** BIOS Auto Detect *** , appears on the right for each menu item on the left side that has been auto detected by the system BIOS. A heading, *** User Modified *** , will appear on the right for menu items that have been modified by the user . APPENDIX DMI Utility APPENDIX
ASUS MEL-M User’ s Manual 85 Save MIFD Y ou can save the MIFD (normally only saved to flash ROM) to a file by entering the drive and path here. If you want to cancel save, you may press ESC and a message “Bad File Name” appears here to show it was not saved. Load MIFD Y ou can load the disk file to memory by entering a drive and path and file name here. Load BIOS Defaults Y ou can load the BIOS defaults from a MIFD file and can clear all user modified and added data. Y ou must reboot your computer in order for the defaults to be saved back into the Flash BIOS. APPENDIX DMI Utility APPENDIX
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ASUS MEL-M User’ s Manual 87 ASUS CIDB Chassis Intrusion Sensor Module The optional ASUS CIDB is a module for providing audio alarm and logging when there is an intrusion into the chassis of a computer system. The module detects a chas- sis intrusion by either light striking its photo sensor or by contact when its switch connectors are shorted by chassis-mounted momentary toggle switches. An intrusion memory function allows detection by BIOS and LDCM v3.3 on the next bootup. Buzzer to sound the alarm Photo sensor to detect intrusion by light Intrusion memory Photo sensor sensitivity adjustment Chassis connector extension cable Battery for the memory Connector to dock with the motherboard’ s chassis connector T wo switch connectors to detect intrusion by chassis mounted micro switches Using the ASUS CIDB 1. Y ou must have an ASUS motherboard with a chassis connector . 2 . Connect the CIDB directly to the chassis connector or use the provided extension cable and mount the CIDB to the chassis using a double-sided foam adhesive tape. CAUTION! The CIDB component pins and metallic points must not come in contact with another metallic surface or else shorting will occur! 3. Check the hardware settings: • JP1 jumper should be enabled to use the photo sensor • MS1 and MS2 connectors should be connected to momentary toggle switches mounted on the chassis to use the contact method for triggering alarms. • SW jumper should be enabled to allow the hardware monitoring compo- nents to receive signals from the CIDB. 4. T o stop the alarm from sounding, use the LDCM v3.3 software or place a jumper on (or short manually) the CLR jumper momentarily . 5. If you have an updated BIOS with intrusion support. Booting the computer after an intrusion will require a password which is configured through BIOS. APPENDIX ASUS CIDB APPENDIX
88 ASUS MEL-M User ’ s Manual APPENDIX ASUS CIDB Normal Clear Clear: Stops the sounding alarm CLR CLR Enable Disable JP1: Enable/Disable the Photo Sensor JP1 JP1 1 1 MS1 MS2 MS1/MS2: Micro Switch from the chassis panel can be connected here to trigger the chassis intrusion alarm. Enable Disable SW: Enable/Disable chassis intrusion function in the motherboard SW SW 1 1 Setting up the ASUS CIDB CON: Sensitivity adjustment for the photo sensor , (0) is least sensitive and (5) is most sensitive CON 1 2 3 4 5 0 (not sensitive) best range (sensitive) CR2032 3V Lithium Cell Buzzer MS1 CLR JP1 CON OR SW MS2 5 volt standby from power supply ASUS CIDB Additional Considerations 1. All motherboards with CIDB: If there is no power to the motherboard (i.e. re- moving the power cord or turning the power supply’ s switch off) the alarm will not sound but the CIDB will still memorize an intrusion event which BIOS and LDCM will detect on the next bootup. 2. Motherboard with chassis intrusion components: Photo sensor , switch, and memory will not operate with power removed. Power is required to send a signal to the motherboard’ s intrusion memory and buzzer . When using the CIDB on these motherboards, all the CIDB functions will be disabled, the motherboard’ s intrusion components must still be used. The CIDB can benefit these mother - boards by providing a chassis switch which will operate even when the power is removed. Pins [2-3] of the SW jumper can be used for a momentary toggle switch and the CIDB’ s battery will be used to send an intrusion signal to the motherboard’ s intrusion memory . APPENDIX
ASUS MEL-M User’ s Manual 89 ASUS PCI-L101 Fast Ethernet Card LAN Activity Output Signal RJ45 LEDs Motherboard type Wake on LAN Output Signal ASUS Other Intel Chipset If you are using the ASUS PCI-L101 on an ASUS motherboard, leave the jumper on its defaut setting of “ASUS.” If you are using another brand of motherboard, set the jumper to “Other .” Connect the W ake on LAN (WOL) output signal to the motherboard’ s WOL_CON in order to utilize the wake on LAN feature of the moth- erboard. Connect the LAN activity output signal (LAN_LED) to the system cabinet’ s front panel LAN_LED in order to display the LAN data activity . APPENDIX ASUS LAN Card APPENDIX
90 ASUS MEL-M User ’ s Manual Features • Intel 82558 Ethernet LAN Controller (Fully integrated 10BASE-T/100BASE-TX) • W ake-On-LAN Remote Control Function Supported • PCI Bus Master Complies to PCI Local Bus Rev . 2.1 specifications • Consists of MAC & PHY (10/100Mbps) interfaces • Complies to IEEE 802.3 10BASE-T and IEEE 802.3u 100BASE-TX interfaces • Fully supports 10BASE-T & 100BASE-TX operations through a single RJ45 port • Supports 32-bit Bus Master T echnology / PCI Rev . 2.1 • Enhancements on ACPI & APM • Adheres to PCI Bus Power Management Interface Rev . 1.0, ACPI Rev . 1.0, and Device Class Power Management Rev . 1.0 • IEEE 802.3u auto-negotiation for 10Mbps/100Mbps Network Data T ransfer Rates. • Provides LED indicators for monitoring network conditions • Plug and Play Software Driver Support • NetW are ODI Drivers - Novell Netware 3.x, 4.x, DOS, OS/2 Client • NDIS 2.01 Drivers - Microsoft LAN Manager , Microsoft W indows 3.1 1, IBM LAN Server • NDIS 3.0 Drivers - Microsoft W indows NT , Microsoft W indows 95, Microsoft W indows 3.1 1 Question and Answer Q: What is W ake-On-LAN ? A: The W ake-On-LAN feature provides the capability to remotely power on sys- tems supporting W ake-On-LAN by simply sending a wake-up frame. W ith this feature, remotely uploading/downloading data to/from systems during of f-peak hours will be feasible. Q: What can W ake-On-LAN do for you ? A: W ake-On-LAN is a remote management tool with advantages that can reduce system management workload, provide flexibility to the system administrator ’ s job, and then of course save you time-consuming ef forts and costs. Q: What components does W ake-On-LAN require to be enable? A: T o enable W ake-On-LAN function, your system requires Ethernet LAN adapter card that can activate W ake-On-LAN function, a client with W ake-On-LAN capa- bility , and software such as LDCM Rev . 3.10 or up that can trigger wake-up frame. APPENDIX ASUS LAN Card APPENDIX
ASUS MEL-M User’ s Manual 91 APPENDIX APPENDIX Glossary Glossary AGP (Accelerated Graphics Port) An interface specification that enables high-performance 3D graphics on mainstream PCs. AGP of fers a higher throughput than PCI by providing the graphics controller with direct access to system memory . Bus Bus Fr equency Bus Speed PCI 33MHz 133MB/s AGP 1X 66MHz 200-300MB/s AGP 2X 133MHz 528MB/s AGP 4X 266MHz 1 GB/s AUTOEXEC.BA T AUTOEXEC.BA T is a special-purpose file that is automatically executed by DOS whenever the computer is turned ON or restarted. This file contains important com- mands that help configure the system to work with certain software and devices. W indows 95 and later has its own startup files and may not use or may ignore parts of the AUTOEXEC.BA T file. BIOS (Basic Input/Output System) BIOS is a set of routines that affect how the computer transfers data between com- puter components, such as memory , disks, and the display adapter . The BIOS in- structions are built into the computer ’ s read-only memory . BIOS parameters can be configured by the user through the BIOS Setup program. The BIOS can be updated using the provided utility to copy a new BIOS file into the EEPROM. Bit (Binary Digit) Represents the smallest unit of data used by the computer . A bit can have one of two values: 0 or 1. Boot Boot means to start the computer operating system by loading it into system memory . When the manual instructs you to “boot” your system (or computer), it means to turn ON your computer . “Reboot” means to restart your computer . When using W in- dows 95 or later , selecting “Restart” from “Start | Shut Down...” will reboot your computer . Bus Master IDE PIO (Programmable I/O) IDE requires that the CPU be involved in IDE access and waiting for mechanical events. Bus master IDE transfers data to/from the memory without interrupting the CPU. Bus master IDE driver and bus master IDE hard disk drives are required to support bus master IDE mode.
92 ASUS MEL-M User ’ s Manual APPENDIX Byte (Binary T erm) One byte is a group of eight contiguous bits. A byte is used to represent a single alphanumeric character , punctuation mark, or other symbol. COM Port COM is a logical device name used by to designate the computer serial ports. Point- ing devices, modems, and infrared modules can be connected to COM ports. Each COM port is configured to use a dif ferent IRQ and address assignment. CPU (Central Pr ocessing Unit) The CPU, sometimes called “Processor ,” actually functions as the “brain” of the computer . It interprets and executes program commands and processes data stored in memory . Currently , there are socket 370 (for Pentium Celeron-PPGA), socket 7 (for Pentium, AMD, Cyrix, IBM), slot 1 (for Pentium II and III), and slot 2 (for Xeon) processors. Device Driver A device driver is a special set of instructions that allows the computer ’ s operating sys- tem to communicate with devices such as VGA, audio, ethernet, printer , or modem. DOS (Disk Operating System) DOS is the foundation on which all other programs and software applications oper - ate, including W indows. DOS is responsible for allocating system resources such as memory , CPU time, disk space, and access to peripheral devices. For this reason, DOS constitutes the basic interface between you and your computer . Hardware Hardware is a general term referring to the physical components of a computer sys- tem, including peripherals such as printers, modems, and pointing devices. IDE (Integrated Drive Electronics) IDE devices integrate the drive control circuitry directly on the drive itself, elimi- nating the need for a separate adapter card (in the case for SCSI devices). UltraDMA/ 33 IDE devices can achieve up to 33MB/Sec transfer . LPT Port (Line Printer Port) Logical device name reserved by DOS for the computer parallel ports. Each LPT port is configured to use a different IRQ and address assignment. MMX A set of 57 new instructions based on a technique called Single Instruction, Multiple Data (SIMD), which is built into the new Intel Pentium PP/MT (P55C) and Pentium II (Klamath) CPU as well as other x86-compatible microprocessors. The MMX in- structions are designed to accelerate multimedia and communications applications, such as 3D video, 3D sound, video conference. APPENDIX Glossary
ASUS MEL-M User’ s Manual 93 APPENDIX PCI Bus (Peripheral Component Inter connect Local Bus) PCI bus is a specification that defines a 32-bit data bus interface. PCI is a standard widely used by expansion card manufacturers. Peripherals Peripherals are devices attached to the computer via I/O ports. Peripheral devices allow your computer to perform an almost limitless variety of specialized tasks. POST (Power On Self T est) When you turn on the computer , it will first run through the POST , a series of soft- ware-controlled diagnostic tests. The POST checks system memory , the mother - board circuitry , the display , the keyboard, the diskette drive, and other I/O devices. PS/2 Port PS/2 ports are based on IBM Micro Channel Architecture. This type of architecture transfers data through a 16-bit or 32-bit bus. A PS/2 mouse and/or keyboard may be used on A TX motherboards. RAID (Redundant Array of Independent Disks) RAID can be set up to provide mirroring (for fault tolerance), parity (for data guard- ing), or striping (for data distribution over several drives for increased performance). A RAID card is required to setup a RAID system. RAM (Random Access Memory) There are several dif ferent types of RAM such as DRAM (Dynamic RAM), EDO DRAM (Extended Data Output DRAM), SDRAM (Synchronous DRAM). ROM (Read Only Memory) ROM is nonvolatile memory used to store permanent programs (called firmware) used in certain computer components. Flash ROM (or EEPROM) can be repro- grammed with new programs (or BIOS). SCSI (Small Computer System Interface) High speed parallel interface defined by the X3T9.2 committee of the American National Standards Institute (ANSI) for connecting many peripheral devices. System Disk A system disk contains the core file of an operating system and is used to boot up the operating system. Ultra DMA/33 Ultra DMA/33 is a new specification to improve IDE transfer rates. Unlike tradi- tional PIO mode, which only uses the rising edge of IDE command signal to transfer data, the DMA/33 uses both rising edge and falling edge. Hence, the data transfer rate is double of the PIO mode 4 or DMA mode 2. (16.6MB/s x2 = 33MB/s). APPENDIX Glossary
94 ASUS MEL-M User ’ s Manual APPENDIX APPENDIX Glossary USB (Universal Serial Bus) A new 4-pin serial peripheral bus that allows plug and play computer peripherals such as keyboard, mouse, joystick, scanner , printer and modem/ISDN to be auto- matically configured when they are attached physically without having to install drivers or reboot. W ith USB, the traditional complex cables from back panel of your PC can be eliminated.
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