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ASUS A8S-X User's Manual

1. Floppy not found appears gt S If the correct BIOS file is not in the floppy disk the error message Floppy not found is displayed Make sure to rename the downloaded BIOS file as A8S X ROM 4 Insert the floppy disk that contains the BIOS file If all the necessary files are found in the floppy disk EZ Flash performs the BIOS update process and automatically reboots the system when done ASUS A8S X 2 5 DO NOT shutdown or reset the system while updating the BIOS Doing so may cause system boot failure User recovery requested Starting BIOS recovery Checking for floppy Floppy found Reading file A8S X ROM Completed Start flashing Flashed successfully Rebooting 2 1 5 Recovering the BIOS with CrashFree BIOS 2 The CrashFree BIOS 2 auto recovery tool allows you to restore BIOS from the motherboard support CD or from a floppy disk that contains the BIOS file in case the current BIOS on the motherboard fails or gets corrupted Prepare the support CD that came with the motherboard or a floppy disk that contains the motherboard BIOS before proceeding with the BIOS update process If you have saved a copy of the original motherboard BIOS to a bootable floppy disk you may also use this disk to restore the BIOS See section 2 1 1 Creating a bootable floppy disk To recover the BIOS from a floppy disk 1 Boot the system 2 When acorrupted BIOS is detected the following
2. Extension name A gt afudos oMYBIOS03 rom AMI Firmware Update Utility Version 1 10 Copyright C 2002 American Megatrends Inc All rights reserved Reading flash 0x0008CC00 9 Chapter 2 BIOS Setup 3 The utility will copy the current system BIOS by default to the floppy disk Make sure that the floppy disk has at least 600KB of free disk space and is not write protected A gt afudos oMYBIOS03 ROM AMI Firmware Update Utility Version 1 10 Copyright C 2002 American Megatrends Inc All rights reserved Reading flash A gt When the copy process is complete the utility returns to the DOS prompt 2 1 4 Using ASUS EZ Flash to update the BIOS The ASUS EZ Flash feature allows you to easily update the BIOS without having to go through the long process of booting from a diskette and using a DOS based utility The EZ Flash is built in the BIOS firmware so it is accessible by simply pressing lt Alt F2 gt during the Power On Self Tests POST To update the BIOS using ASUS EZ Flash 1 Visit the ASUS website www asus com to download the latest BIOS file for your motherboard and rename the downloaded file as A8S X ROM Save the BIOS file to a floppy disk 2 Reboot the system 3 To launch EZ Flash press lt Alt F2 gt during POST to display the following User recovery requested Starting BIOS recovery Checking for floppy e If there is no floppy disk in the drive the error message
3. Guide E2123 First Edition July 2005 Copyright 2005ASUSTeK COMPUTER INC All Rights Reserved No part of this manual including the products and software described in it may be reproduced transmitted transcribed stored in a retrieval system or translated into any language in any form or by any means except documentation kept by the purchaser for backup purposes without the express written permission of ASUSTeK COMPUTER INC ASUS 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 ASUS PROVIDES THIS MANUAL AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE INNO EVENT SHALL ASUS ITS DIRECTORS OFFICERS EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING DAMAGES FOR LOSS OF PROFITS LOSS OF BUSINESS LOSS OF USE OR DATA INTERRUPTION OF BUSINESS AND THE LIKE EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE AND SHO
4. 3 PANEL FERGEN n Requires an ATX power supply A8S X System panel connector PLED PLED Speake roundo m 5V pa os Ground Reset Ground DE LED DE LED G System Power LED Lead Green 3 pin PLED This 3 pin connector connects to the system power LED The LED lights up when you turn on the system power and blinks when the system is in sleep mode System Warning Speaker Lead Orange 4 pin SPEAKER This 4 pin connector connects to the case mounted speaker and allows you to hear system beeps and warnings e Reset Switch Lead Blue 2 pin RESET This 2 pin connector connects to the case mounted reset switch for rebooting the system without turning off the system power ATX Power Switch Soft Off Switch Lead Yellow 2 pin PWRSW This connector connects a switch that controls the system power Pressing the power switch turns the system between ON and SLEEP or ON and SOFT OFF depending on the BIOS or OS settings Pressing the power switch while in the ON mode for more than 4 seconds turns the system OFF Hard disk activity LED Red 2 pin IDE LED This connector supplies power to the hard disk activity LED Any read or write activity of an IDE device cause this LED to light up The System Panel connector is color coded for easy and foolproof connection Take note of the specific connector colors as described 1 22 Chapter 1 Product introduction Chapter 2 This chapter tells how to change sy
5. Auto Allows you to enable or disable support for PS 2 mouse Configuration options Disabled Enabled Auto Wait for FT If Error Enabled When set to Enabled the system waits for F1 key to be pressed when error occurs Configuration options Disabled Enabled Hit DEL Message Display Enabled When set to Enabled the system displays the message Press DEL to run Setup during POST Configuration options Disabled Enabled ASUS A8S X 2 27 Interrupt 19 Capture Disabled When set to Enabled this function allows the option ROMs to trap Interrupt 19 Configuration options Disabled Enabled 2 6 3 Security The Security menu items allow you to change the system security settings Select an item then press lt Enter gt to display the configuration options BIOS SETUP UTILITY boot Security Settings lt Enter gt to change EEG GET EE lt Fc lt password Supervisor Password Not Installed lt Enter gt again to User Password Not Installed disable password Change Supervisor Password Change Supervisor Password Select this item to set or change the supervisor password The Supervisor Password item on top of the screen shows the default Not Installed After you have set a password this item shows Installed To set a Supervisor Password Select the Change Supervisor Password item and press Enter gt 2 From the password box type a password combination of at least six 6 letters an
6. Power On By External Modems Disabled Allows either settings of Enabled or Disabled for powering up the computer when the external modem receives a call while the computer is in Soft off mode Configuration options Disabled Enabled applications are fully running Thus connection cannot be made on the first try A Turning an external modem off and then back on while the computer is off causes an initialization string that turns the system power on Z The computer cannot receive or transmit data until the computer and 2 24 Chapter 2 BIOS Setup Power On By RTC Alarm Disabled Allows you to enable or disable RTC to generate a wake event When this item is set to Enabled the items RTC Alarm Date RTC Alarm Hour RTC Alarm Minute and RTC Alarm Second appear with set values Configuration options Disabled Enabled 2 5 6 Hardware Monitor Hardware Monitor CPU Temperature CPU Temperature 40 5 C 102 5 F MB Temperature 33 C 91 F CPU Fan Speed 3260RPM Chassis Fan Speed N A Power Fan Speed 1 504V 3 3V Voltage 3 360V 5V Voltage 5 160V 12V Voltage 11 328V VCORE Voltage Select Screen TL Select Item Change Option Fi General Help Fil Save and Exit Q FAN Function Disabled CPU Temperature xxx C xxx F MB Temperature xxx C xxx F The onboard hardware monitor automatically detects and displays the motherboard and CPU temperatu
7. Date nike 2 11 2 3 3 Legacy Diskette A aaaavaaaa kaaa kaaa aaa kakaa 2 11 2 en 2 11 2 3 5 Primary Secondary Third and Fourth IDE Master Slave rrrrnrrrrrnnrnnrrvrrnrrnrvnen 2 12 2 3 6 Onboard PCI S ATA Controller 2 13 2 3 7 System Information rrrrrnnnrrrrrrnnrnnnrvnvernnnrnnrvnnnnn 2 13 Advanced Menu EE EE 2 14 2 4 1 JumperFree Configuration even 2 14 242 USBCONNJUFANOM vere 2 15 2 4 3 CPU Configuration re 2 16 2 4 4 NE 2 17 2 4 5 Onboard Devices Configuration aa 2 20 PAO PAPP o otoku pe sejo ino 2 21 2 4 7 AMD Cool N Quiet Configuration a 2 22 OW GF MENU e oso i ta ta kai tije tano dona 2 23 2 5 1 Suspend Mode rsnnrrvnnesnnnnnrnnnnrrnnnessnnnnrnnnnrrnnnesn 2 23 2 5 2 Repost Video On S3 RESUME rrnnnrrrnnrnnsnnnnrnnnrnrn 2 23 253 ACPI 2 0 Support tatana ivana dnina kaan 2 23 2 6 2 1 2 5 4 ACPI APIC Support errrarrasarrevnrrnrnsarrevnrssrrsanreverne 2 23 2 5 5 APM Configuration eena vana 2 24 250 Hardware Monitor roni t satni ah nonala tii oa dika 2 25 BOOL IMENU aaa poriva eo oo 2 20 2 6 1 Boot Device Priority Leseren 2 26 2 6 2 Boot Settings Configuration eena vanno 2 27 203 UN 2 28 EITC EE EEE EE 2 30 Chapter 3 Software support 3 1 3 2 Install an Operating System rrrrsnnnnnnrrrrrvrrrrrrrrrrsnsrrrnnnnn 3 2 Support CD information errrvrerrnrrrrrnnvrrrreverrvnnrrrssrrrrreeneene 3 2 3 2 1 Running the support C
8. IDE Slave Secondary IDE Master Secondary IDE Slave Third IDE Master Fourth IDE Master Onboard PCI S ATA Controller TY Y Y Y Y Y b System Information nT vBB BB lt C gt Gopyuright 1985 2882 American Megatrends Inc Sub menu items Navigation keys 2 2 2 Menu bar The menu bar on top of the screen has the following main items Main For changing the basic system configuration Advanced For changing the advanced system settings Power For changing the advanced power management APM configuration Boot For changing the system boot configuration Exit For selecting the exit options and loading default settings To select an item on the menu bar press the right or left arrow key on the keyboard until the desired item is highlighted 2 2 3 Navigation keys At the bottom right corner of a menu screen are the navigation keys for that particular menu Use the navigation keys to select items in the menu and change the settings Z Some of the navigation keys differ from one screen to another A ASUS A8S X 2 9 2 2 4 Menu items The highlighted item on the menu bar displays the specific items for that menu For example selecting Main shows the Main menu items The other items Advanced Power Boot and Exit on the menu bar have their Main menu items respective menu items 2 2 5 Sub menu items An item with a sub menu on any menu screen is distinguished by a solid triangle before the item To display th
9. enable or disable the onboard SiS USB 2 0 port Configuration options Disabled Enabled ASUS A8S X 2 15 The Module Version and USB Devices Enabled items show the auto detected values If no USB device is detected the item shows None gt a Legacy USB Support Auto Allows you to enable or disable the legacy USB support When set to Auto the system disables the legacy USB support it there are no USB devices connected Configuration options Disabled Enabled Auto USB 2 0 Controller Mode HiSpeed Allows you to configure the USB 2 0 controller in HiSpeed 480 Mbps or Full Speed 12 Mbps Configuration options HiSpeed Full Speed Stop EHCI Hand Off Enabled Allows you to stop the EHCI HC in OHCI handover Enable this item when installing operating systems that does not support EHCI host controllers Configuration options Disabled Enabled 2 4 3 CPU Configuration The CPU configuration menu displays the current CPU configuration BIOS SETUP UTILITY idvanced CPU Configuration Module Version 14 04 Physical Count 1 Logical Count 1 AMD Athlon tm 64 Processor 3000 Revision E3 Cache L1 64KB Cache L2 512KB Speed 1810MHz Current FSB Multiplier Select Maximum FSB Multiplier M rk Gass Select Item Able to Change Freq Change Option uCode Patch Level None Required General Help Save and Exit Exit Z The items in this menu varies depending on the type of processor install
10. feature present in the motherboard allows you to personalize and add style to your system with customizable boot logos ASUS EZ Flash BIOS With the ASUS EZ Flash you can easily update the system BIOS even before loading the operating system No need to use a DOS based utility or boot from a floppy disk See page 2 5 ASUS Multi language BIOS Bim The multi language BIOS allows you to select the language of your choice from the available options The localized BIOS menus allow you to configure easier and faster See page 2 11 for details 1 4 Chapter 1 Product introduction 1 4 Before you proceed Take note of the following precautions before you install motherboard components or change any motherboard settings AN 1 Unplug the power cord from the wall socket before touching any component 2 Use a grounded wrist strap or touch a safely grounded object or to a metal object such as the power supply case before handling components to avoid damaging them due to static electricity 3 Hold components by the edges to avoid touching the ICs on them 4 Whenever you uninstall any component place it on a grounded antistatic pad or in the bag that came with the component 5 Before you install or remove any component ensure that the ATX power supply is switched off or the power cord is detached from the power supply Failure to do so may cause severe damage to the motherboard peripherals and or components Onboard L
11. remove the jumper cap from the pins Chassis Signal GND 5VSB_MB CHASSIS UB Default A8S X Chassis intrusion connector 8 GAME MIDI connector 16 1 pin GAME1 This connector supports a GAME MIDI module If a GAME MIDI module is available connect the GAME MIDI cable to this connector The GAME MIDI port on the module connects a joystick or a game pad for playing games and MIDI devices for playing or editing audio files A8S X GAME connector J The USB GAME module is purchased separately 1 20 Chapter 1 Product introduction 9 Serial ATA connectors 7 pin SATA1 SATA2 These next generation connectors support the thin Serial ATA cables for primary internal storage devices The current Serial ATA interface allows up to 150 MB s data transfer rate faster than the standard parallel ATA with 133MB s Ultra ATA 133 SATA2 SATA1 NNANNO gt Arrr S8SSPSGE 9529729 10 Front panel audio connector 10 1 pin AAFP This connector is for a chassis mounted front panel audio I O module that supports legacy AC 97 audio standard Connect one end of the front panel audio I O module cable to this connector PORT2 L SENSE_SEND PORT2 R PORTI R PORT1 L gt gt TI U GND PRESENCE SENSE2_RETUR SENSE1_RETUR A8S X Analog front panel connector ASUS A8S X 1 21 12 System panel connector 10 1 pin PANEL This connector accommodates several system front panel functions PLED SPEAKER O ce
12. user guide Contact Marketing Marketing Technical Support Technical Support Marketing 3 6 Chapter 3 Software support
13. D rrrrrrnrnnnnrrrrrnnnrrnnrvnnenrnnnr 3 2 3 2 2 Drivers menu 0aa aaa kaaa kaaa kakaa 3 3 3 2 3 Utilities menu aaa kaaa kakaa kakaa 3 3 3 2 4 Make DISK aaaaa aaa aaa aaa aaa kaaa kakaa 3 5 3 25 Manual 0aa aaa kaka kkk 3 5 3 2 6 ASUS Contact Information aaaaaa aa aaa anna nana 3 6 vi Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions This device may not cause harmful interference and This device must accept any interference received including interference that may cause undesired operation The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations Changes or modifications 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 This class B digital apparatus complies with Canadian ICES 003 Where to find more information Refer to the following sources for additional information and for product and software updates 1 ASUS Websites The ASUS website provides updated informati
14. ED The motherboard comes with a stand by power LED When lit this green LED indicates that the system is ON in sleep mode or in soft off mode a reminder that you should shut down the system and unplug the power cable before removing or plugging in any motherboard component The illustration below shows the location of the onboard LED ASUS A8S X ON OFF Standby Powered Off A8S X Onboard LED Power 1 0 Motherboard overview 1 5 1 Motherboard layout 18 3cm 8 6in PS 2KBMS PWR FAN CPU FAN T Mouse m ER B Keyboard sisi Els O ATX12V sills Ss ils SIE 31 8 m A Elle elle ET O s s ls E ole ele l E E HH l 5 ES O alal lalia U st st Sse jE lt 1 amp lalla si 2 USB12 im USBPW12 mil USBPW34 sia EVE N N O MC Cia Bottom S USB3 n J 45 J ni USB4 I I i Lu oo Q Top Line In SiS o ji a LI Center Line Out JED gt lt 756 09 Below Mic In m ILI OD Ea p nm Tar h CHA_FAN AD1986A PCIEX16 E PCIEX1 1 LL Q E PCIEX1_2 SiS m A8S X 965L am DF SEN 5U5 SATA2 SATA1 PCI2 AMbit USB56 USB78 BIOS ITE GEER BEREN Lithium Cel IT8712FA PCI3 CLRTC mj USBPW78 cw EEE HRRERREH t o o o HEEE ag PANEL V 1 6 Chapter 1 Product introduction 1 5 2 Placement direction When installing the motherboard make sure that you place it into the chass
15. Hz DDR Reference Voltage Auto Allows you to automatically detect or select from a list the DDR operating voltage Configuration options 2 6V 2 7V 2 8V 2 9V Auto FID VID Change Auto Sets the frequency ID and voltage ID Configuration options Auto Manual Processor Frequency Multiplier x8 1600 MHz Sets the processor frequency multiplier The default value varies depending on the processor installed This item appears only when the FID VID Change item is set to Manual Configuration options x8 1600 MHz x9 1800 MHz x10 2000 MHz x11 2200 MHz Processor Voltage 1 350 V Sets the processor voltage The configuration options vary depending on the processor installed This item appears only when the FID VID Change item is set to Manual 2 4 2 USB Configuration The items in this menu allows you to change the USB related features Select an item then press lt Enter gt to display the configuration options BIOS SETUP UTILITY Advanced OnBoard SiS USB1 1 DEVICE Enabled OnBoard SiS USB2 0 DEVICE Enabled USB Configuration Module Version 2 23 2 9 4 USB Devices Enabled None Legacy USB Support Auto USB 2 0 Controller Mode HiSpeed eo Select Screen Stop EHCI Hand Off Enabled tl Select Item OnBoard SiS USB1 1 DEVICE Enabled Allows you to enable or disable the onboard SiS USB 1 1 port Configuration options Disabled Enabled OnBoard SiS USB2 0 DEVICE Enabled Allows you to
16. PIO Mode Supported Async DMA MultiWord DMA 2 Ultra DMA Ultra DMA 5 SMART Monitoring Supported Type Auto Select Screen LBA Large Mode Auto ME nee Block Multi sector Transfer Auto p EI a in PIO Mode Auto enera elp Auto Save and Exit DMA Mode Exit Smart Monitoring Auto 32Bit Data Transfer Disabled Megatrends Inc The values opposite the dimmed items Device Vendor Size LBA Mode Block Mode PIO Mode Async DMA Ultra DMA and SMART monitoring are auto detected by BIOS and are not user configurable These items show N A if no IDE device is installed in the system Type Auto Selects the type of IDE drive Setting to Auto allows automatic selection of the appropriate IDE device type Select CDROM if you are specifically configuring a CD ROM drive Select ARMD ATAPI Removable Media Device if your device is either a ZIP LS 120 or MO drive Configuration options Not Installed Auto CDROM ARMD LBA Large Mode Auto Enables or disables the LBA mode Setting to Auto enables the LBA mode if the device supports this mode and if the device was not previously formatted with LBA mode disabled Configuration options Disabled Auto Block Multi sector Transfer Auto Enables or disables data multi sectors transfers When set to Auto the data transfer from and to the device occurs multiple sectors at a time if the device supports multi sector transfer feature When set to Disabled t
17. Play PnP devices not Palette S i ee a d required for boot if aaa a ei a sik your system has a Plug EEE lt operating evice Device Select Screen Device Select Item Device Change Option Device 1 General Help Device fave and Exit Device Exit Device Megatrends Inc Plug and Play O S No When set to No BIOS configures all the devices in the system When set to Yes and if you installed a Plug amp Play operating system the operating system configures the Plug amp Play devices not required for boot Configuration options No Yes ASUS A8S X 2 21 PCI Latency Timer 64 Allows you to select the value in units of PCI clocks for the PCI device latency timer register Configuration options 32 64 96 128 160 192 224 248 Allocate IRQ to PCI VGA Yes When set to Yes BIOS assigns an IRQ to PCI VGA card if the card requests for an IRQ When set to No BIOS does not assign an IRQ to the PCI VGA card even if requested Configuration options Yes No Palette Snooping Disabled When set to Enabled the pallete snooping feature informs the PCI devices that an ISA graphics device is installed in the system so that the latter can function correctly Setting to Disabled deactivates this feature Configuration options Disabled Enabled 2 4 7 AMD Cool N Quiet Configuration AMD Cool N Quiet Configuration Enabled Disabled Cool N Quiet Cool N Quiet Enabled Cool N
18. Quiet Enabled Enables or disables the ASUS AMD Cool n Quiet technology feature Configuration options Enabled Disabled 2 22 Chapter 2 BIOS Setup 2 9 Power menu The Power menu items allow you to change the settings for the Advanced Power Management APM feature Select an item then press lt Enter gt to display the configuration options BIOS SETUP UTILITY Main Advanced Power Boot Exit Suspend Mode SI amp S3 STR Repost Video on S3 Resume No ACPI 2 0 Support No ACPI APIC Support Enabled APM Configuration Hardware Monitor Select Screen select Item Enter Go to Sub Screen F General Help Fin Save and Exit ESC Exit right 1985 28682 American Megatrends Inc 2 5 1 Suspend Mode S1 amp S3 STR Allows you to select the ACPI state to be used for system suspend Configuration options S1 POS Only S1 and S3 STR S3 Only 2 5 2 Repost Video On S3 Resume No Determines whether to invoke the VGA BIOS post on S3 STR resume Configuration options No Yes 2 5 3 ACPI 2 0 Support No Allows you to add more tables for ACPI 2 0 specifications Configuration options No Yes 2 5 4 ACPI APIC Support Enabled Enables or disables the ACPI support in the ASIC When set to Enabled the ACPI APIC table pointer is included in the RSDT pointer list Configuration options Disabled Enabled ASUS A8S X 2 23 2 5 5 APM Configuration Power Button Mode On Off Restor
19. SI cards and other cards that comply with the PCI Express specifications The figure shows a network card installed on the PCI Express x1 slot 1 8 5 PCI Express x16 slot This motherboard supports PCI Express X16 graphic cards that comply with the PCI Express specifications The following figure shows a graphics card installed on the PCI Express x16 slot ASUS A8S X 19 Jumpers 1 Clear RTC RAM CLRTC This jumper allows you to clear the Real Time Clock RTC RAM in CMOS You can clear the CMOS memory of date time and system setup parameters by erasing the CMOS RTC RAM data The RAM data in CMOS that include system setup information such as system words is powered by the onboard button cell battery To erase the RTC RAM 1 Turn OFF the computer and unplug the power cord 2 Move the jumper cap from pins 1 2 default to pins 2 3 Keep the cap on pins 2 3 for about 5 10 seconds then move the cap back to pins 1 2 3 Plug the power cord and turn ON the computer 4 Hold down the lt Del gt key during the boot process and enter BIOS setup to re enter data A Except when clearing the RTC RAM never remove the cap on the jumper default position Removing the cap will cause system boot failure CLRTC 12 23 DE Normal Clear CMOS A8S X Clear RTC RAM Default AN You do not need to clear the RTC when the system hangs due to overclocking For system failure due to overclocking use the C P R CPU Paramet
20. Transport frequency from CPU to the NorthBridge Configuration options 200 MHz 400 Mhz 800 Mhz 1000 Mhz ASUS A8S X 2 19 2 4 5 Onboard Devices Configuration Advanced Serial Portl Address 3F8 IRQ4 Serial Portl Mode Normal Parallel Port Address 378 Onboard Game Port Disabled Onboard MIDI Port Disabled Onboard LAN Enabled Onboard LAN Boot ROM Disabled Onboard AC97 Audio DEVICE Enabled Serial Porti Address 3F8 IRQ4 Allows you to select the Serial Port1 base address Configuration options Disabled 3F8 IRQ4 2F8 IRQ3 SE8 IRQ4 2E8 IRQ3 Serial Port Mode Normal Allows you to select the Serial Port mode Configuration options Normal IrDA ASK IR Parallel Port Address 378 Allows you to select the Parallel Port base addresses Configuration options Disabled 378 278 SBC Parallel Port Mode Normal Allows you to select the Parallel Port mode Configuration options Normal Bi Directional EPP ECP EPP Version 1 9 Appears only when the Parallel Port Mode is set to EPP This item allows you to to select the Parallel Port EPP version Configuration options 1 9 1 7 ECP Mode DMA Channel DMA3 Appears only when the Parallel Port Mode is set to ECP This item allows you to set the Parallel Port ECP DMA Configuration options DMAO DMA1 DMAS Parallel Port IRQ IRQ7 Sets the Parallel Port IRQ Configuration options IRQ5 IRQ7 Onboard Game Port Disa
21. ULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies and are used only for identification or explanation and to the owners benefit without intent to infringe NOE Mmm rav pomora m a venem vi Safety information EE vii About this guide EE viii Conventions used in this guide aaa viii PN E A A A vill A8S X specifications SUMMATy aaa aaa aaa aaa akan IX Chapter 1 Product introduction 1 1 Welcome 0000kn 1 2 bl Package Keope rep 1 2 1 3 Special features PR i 1 3 1 3 1 Product Highlights escort senctecsesmeesesetnnsnmsctaoueenecmratigees 1 3 1 3 2 Unique ASUS features rsrrrnnrnnvvvrnnrrnnvvvrnnnnnnvnnrn 1 4 1 4 Before you proceed aaaaaaa aaa aaa kakaa 1 5 1 5 NEMNE 1 6 1 5 1 Motherboard layout orrrrrrrnnnnnnnnnnrvvnnnrrnnnrnnnnnnnnnn 1 6 1 5 2 Placement direction s ori oi ja a oni 1 7 1 5 3 Screw holes spa tiacercsnavassnecerngsaonennqestuseneadevanvimeiduensies 1 7 1 6 Central Processing Unit CPU aaa aaa 1 8 EO EEE 1 8 1 6 2 Installing the CPU rasccnasss caxsunmesdeautetcaneranaseaae 1 9 1 7 System memory EEE 1 10 1 7 1 DIMM sockets location aa 1 10 1 7 2 Memory configurations
22. ate process is complete reboot the system aN The recovered BIOS may not be the latest BIOS version for this motherboard Visit ASUS website www asus com to download the latest BIOS file ASUS A8S X 2 7 2 2 BIOS Setup program This motherboard supports a programmable LPC chip that you can update using the provided utility described in section 2 1 Managing and updating your BIOS Use the BIOS Setup program when you are installing a motherboard reconfiguring your system or prompted to Run Setup This section explains how to configure your system using this utility Even if you are not prompted to use the Setup program you may want to change the configuration of your computer in the future For example you may want to enable the security password feature or change the power management settings This requires you to reconfigure your system using the BIOS Setup program so that the computer can recognize these changes and record them in the CMOS RAM of the LPC The LPC on the motherboard stores the Setup utility When you start up the computer the system provides you with the opportunity to run this program Press lt Del gt during the Power On Self Test POST to enter the Setup utility Otherwise POST continues with its test routines If you wish to enter Setup after POST restart the system by pressing lt Ctrl Alt Delete gt or by pressing the reset button on the system chassis You can also restart by turning the syst
23. bled Enables or disables the onboard GAME port Configuration options Disabled Enabled 2 20 Chapter 2 BIOS Setup Onboard MIDI Port Disabled Disables or sets the onboard MIDI port Configuration options Disabled 300 330 OnBoard LAN Enabled Allows you to enable or disable the onboard LAN controller Configuration options Disabled Enabled Onboard LAN Boot ROM Disabled Allows you to enable or disable the onboard LAN boot ROM Configuration options Disabled Enabled OnBoard AC 97 Audio DEVICE Enabled Allows the BIOS to detect whether you are using any audio device If an audio device is detected the onboard audio controller is enabled if no audio device is detected the controller is disabled Configuration options Disabled Enabled 2 4 6 PCI PnP The PCI PnP menu items allow you to change the advanced settings for PCI PnP devices The menu includes setting IRQ and DMA channel resources for either PCI PnP or legacy ISA devices and setting the memory size block for legacy ISA devices Take caution when changing the settings of the PCI PnP menu items Incorrect field values may cause the system to malfunction BIOS SETUP UTILITY Advanced Advanced PCI PnP Settings NO Lets the BIOS fi 11 th WARNING Setting wrong values in below sections se a N may cause system to malfunction YES Lets the Plug And Play O S operating system Eee configure Plug and Allocate IRQ to PCI VGA
24. configured system Do not forget to connect the 4 pin ATX 12 V power plug otherwise the system will not boot up e Use of a power supply unit PSU with a higher power output is recommended when configuring a system with more power consuming devices The system may become unstable or may not boot up if the power is inadequate e Make sure that your PSU can provide at least the minimum power required by your system ATXPWR ATX12V 3 Volts 12 Volts Ground PSON E Ground Ground g 3 Volts z 3 Volts Ground i 5 Volts Ground E 5 Volts 12V DC m m 12V DC GND 85 HE GND Ground Ground 5 Volts iti Power OK 5 Volts 5V Standby 5 Volts E 12 Volts 5 Volts 12 Volts Ground gt E 3 Volts A8S X ATX power connectors 4 Internal audio connectors 4 pin CD AUX These connectors allow you to receive stereo audio input trom sound sources such as a CD ROM TV tuner or MPEG card Right Audio Channel CD Black Ground Left Audio Channel Right Audio Channel as t AUX White Left Audio Channel 1 18 Chapter 1 Product introduction 5 CPU and chassis fan connectors 3 pin CPU FAN CHA FAN PWR FAN The fan connectors support cooling fans of 350mA 740mA 8 88W max or a total of 1A 2 22A 26 64W max at 12V Connect the fan cables to the fan connectors on the motherboard making sure that
25. d or numbers then press lt Enter gt 3 Confirm the password when prompted The message Password Installed appears after you have successfully set your password The Supervisor Password item now shows Installed To change the supervisor password follow the same steps as in setting a user password To clear the supervisor password select the Change Supervisor Password then press lt Enter gt The message Password Uninstalled appears REN If you forget your BIOS password you can clear clear it by erasing the CMOS Real Time Clock RTC RAM See section 1 9 Jumpers for information on how to erase the RTC RAM After you have set a supervisor password the other items appear to allow you to change other security settings 2 28 Chapter 2 BIOS Setup BIOS SETUP UTILITY boot Security Settings lt Enter gt to change A AA AAA password Supervisor Password Installed lt Enter gt again to User Password Not Installed disabled password Change Supervisor Password User Access Level Full Access Change User Password Clear User Password Password Check Setup Select Screen Ti Select Item F5 Change Option User Access Level Full Access Allows you to select the access restriction to the Setup items Configuration options No Access View Only Limited Full Access No Access prevents user access to the Setup utility View Only allows access but does not allow change to any field Limited allows c
26. development See page 1 8 HyperTransport Technology CO HyperTransport Technology is a high speed low latency point to point link designed to increase the communication speed between integrated circuits in computers networking and telecommunicatons equipment up to 48 times faster than other existing technologies Cool n Quiet Technology l SR Ceai w Quiet The motherboard supports the AMD Cool n Quiet Technology that dynamically and automatically changes the CPU speed voltage and amount of power depending on the task the CPU performs SERIAL Serial ATA solution The motherboard supports two interfaces compliant to the Serial ATA SATA specification an evolutionary replacement of the Parallel ATA storage interface The Serial ATA specification allows for thinner more flexible cables with lower pin count reduced voltage requirement up to 150 MB s data transfer rate Serial ATA RAID solution The motherboard provides a high performance Serial ATA RAID controller that enhance hard disk performance and data backup protection without the cost of additional RAID cards The onboard SIS 965L RAID controller provides two Serial ATA connectors for RAID 0 RAID 1 and JBOD functions S PDIF out s PDIF The motherboard s S PDIF out function turns your computer into a high end entertainment system with digital connectivity to powerful speaker systems ASUS A8S X 1 3 PCI Express interface
27. e CPU and other system devices Take caution when changing the settings of the Advanced menu items Incorrect field values may cause the system to malfunction BIOS SETUP UTILITY Power Boot Exit JumperFree Configuration USB Configuration CPU Configuration Chipset Onboard Devices Configuration PCI PnP AMD Cool N Quiet Configuration Select Screen Select Item Enter Go to Sub Screen Fi General Help Fil Save and Exit ESC Exit 2 4 1 JumperFree Configuration BIOS SETUP UTILITY Advanced Configure System Frequency AI Overclocking Al Overclocking Auto Sets the mode for overclocking Configuration options Manual Auto Standard Overclock Profile Z The following items appear only when the Overclock Option is set to Manual gt CPU Frequency XXX value is auto detected Indicates the frequency sent by ihe clock generator to the system bus and PCI bus The bus frequency external frequency multiplied by the bus multiple equals the CPU speed The value of this item is auto detected by BIOS The values range from 200 to 300 Use the lt gt and lt gt keys to adjust the value PCI Express Frequency Auto Allows you to set the PCI Express frequency Configuration options Auto 90 91 150 2 14 Chapter 2 BIOS Setup PCI Clock Synchronization Mode To PCI Express Sets the PCI Express clock synchronization mode Configuration options To PCI Express 33 33MHz 37 5MHz 40 0M
28. e on AC Power Loss Always OFF Power On By PS2 Keyboard Disabled Power On By PS2 MOUSE Disabled Power On By PCI Devices Disabled Power On By External Modem Disabled Power On By RTC Alarm Disabled Power Button Mode On Off Allows the system to go into On Off mode or suspend mode when the power button is pressed Configuration options On Off Suspend Restore on AC Power Loss Always OFF When set to Power Off the system goes into off state after an AC power loss When set to Power On the system goes on after an AC power loss When set to Last State the system goes into either off or on state whatever the system state before the AC power loss Configuration options Always OFF Always On Keep Previous State Power On By PS2 Keyboard Disabled Allows you to disable or set the keyboard wake up feature This feature requires an ATX power supply that provides at least 1A on the 5VSB lead Configuration options Disabled Enabled Power On By PS2 Mouse Disabled When set to Enabled this parameter allows you to use the PS 2 mouse to resume the system This feature requires an ATX power supply that provides at least 1A on the 5VSB lead Configuration options Disabled Enabled Power On By PCI Devices Disabled Allows you to enable or disable the PME to generate a wake event This feature requires an ATX power supply that provides at least 1A on the 5VSB lead Configuration options Disabled Enabled
29. e sub menu select the item and press lt Enter gt 2 2 6 Configuration fields These fields show the values for the menu items If an item is user configurable you may change the value of the field opposite the item You can not select an item that is not user configurable A configurable field is enclosed in brackets and is highlighted when selected To change the value of a field select it then press lt Enter gt to display a list of options Refer to 2 2 7 Pop up window 2 2 Pop up window Select a menu item then press Enter to display a pop up window with the configuration options for that item 2 2 8 Scroll bar A scroll bar appears on the right side of a menu screen when there are items that do not fit on the screen Press Up Down arrow keys or PageUp PageDown keys to display the other items on the screen Pop up window 2 2 9 General help Scroll bar At the top right corner of the menu screen is a brief description of the selected item 2 10 Chapter 2 BIOS Setup 2 3 Main menu When you enter the BIOS Setup program the Main menu screen appears giving you an overview of the basic system information Refer to section 2 2 1 BIOS menu screen for information on the menu screen items and how to navigate through them BIOS SETUP UTILITY Advanced Power Boot Exit System Time 11 51 19 Use ENTER TAB System Date Thu 08 05 2003 or SHIFT TAB to Legacy Diskette A 1 44M 3 5 in select a
30. e sure all cables are correctly connected and the power cables are not damaged If you detect any damage contact your dealer immediately To avoid short circuits keep paper clips screws and staples away from connectors slots sockets and circuitry Avoid dust humidity and temperature extremes Do not place the product in any area where it may become wet Place the product on a stable surface If you encounter technical problems with the product contact a qualified service technician or your retailer Vil Conventions used in this guide To make sure that you perform certain tasks properly take note of the following symbols used throughout this manual Zi WARNING Information to prevent injury to yourself when trying to complete a task A CAUTION Information to prevent damage to the components when trying to complete a task aN IMPORTANT Information that you MUST follow to complete a task Z NOTE Tips and additional information to aid in completing a task Typography Used to emphasize a word or a phrase lt Key gt Keys enclosed in the less than and greater than sign indicates that you must press the enclosed key Example lt Enter gt indicates that you must press the Enter or Return key lt Multiple key names gt If you must press two or more keys simultaneously the key names are linked with a plus sign Example lt Ctrl Alt D gt Command Means that you must enter the command exactly as shown the
31. ed am na 2 16 Chapter 2 BIOS Setup 2 4 4 Chipset The Chipset menu items allow you to change the advanced chipset settings Select an item then press lt Enter gt to display the sub menu BIOS SETUP UTILITY Advanced Chipset Settings b PCI Express Devil Configuration NorthBridge Configuration HyperTransport Configuration PCI Express Dev1 Configuration Advanced PCI Express Devl Configuration Primary Graphics Adapter PCI Express Card Primary Graphics Adapter PCI Express Card Sets the primary graphics adapter Configuration options PCI Expres Card PCI NorthBridge Configuration Advanced NorthBridge Chipset Configuration Memory Configuration Select Screen Ti Select Item Change Option Fi General Help Fit Save and Exit ESC Exit ASUS A8S X 2 17 Memory Configuration BIOS SETUP UTILITY Advanced Memory Configuration Memclock Mode Auto MCT Timing Mode Auto Software Memory Hole Disabled Memclock Mode Auto Allows you to set the memory clock mode Set by the code using Auto or select Manual to set using one of the standard values Configuration options Auto Limit MCT Timing Mode Auto Allows you to set the MCT timing mode Set by the code using Auto or select Manual to set using one of the standard values Configuration options Auto Manual Z The following items appear only when the MCT Timing Mode is set to Manua
32. ed four 1 GB DDR memory modules Due to chipset limitation DIMM modules with 128 Mb memory chips or double sided x16 memory chips are not supported in this motherboard Due to CPU limitation install on Channel B slots for a single channel memory configuration Visit the ASUS website www asus com for the latest DDR 400 Qualified Vendor List for this motherboard Chapter 1 Product introduction 1 7 3 Installing a DIMM Follow these steps to install a DIMM DDR DIMM 1 Unlock a DIMM socket by pressing the retaining clips outward 2 Align a DIMM on the socket such that the notch on the DIMM matches the break on the socket 3 Firmly insert the DIMM into the socket until the retaining clips snap back in place and the DIMM is properly seated Unlocked A A DDR DIMM is keyed with a notch so that it fits in only one direction DO NOT force a DIMM into a socket to avoid damaging the DIMM 1 8 Expansion slots To install and configure an expansion card Install an expansion card following the instructions that came with the chassis 2 Turn on the system and change the necessary BIOS settings if any See Chapter 2 for BIOS information 3 Assign an IRQ to the card Refer to the tables next page 4 Install the drivers and or software applications for the expansion card according to the card documentation 1 8 1 Standard interrupt assignments IRQ Priority Standard Function 0 1 System Timer 1 2 Keyboard Control
33. em off and then back on Do this last option only if the first two failed The Setup program is designed to make it as easy to use as possible It is a menu driven program which means you can scroll through the various sub menus and make your selections from the available options using the navigation keys aN The default BIOS settings for this motherboard apply for most conditions to ensure optimum performance If the system becomes unstable after changing any BIOS settings load the default settings to ensure system compatibility and Stability Select the Load Default Settings item under the Exit Menu See section 2 7 Exit Menu The BIOS setup screens shown in this chapter are for reference purposes only and may not exactly match what you see on your screen Visit the ASUS website www asus com to download the latest product and BIOS information 2 8 Chapter 2 BIOS Setup 2 2 1 BIOS menu screen Menu items Menu bar Configuration fields General help BIOS SETUP UTILITY ain Advanced Pover Boot Exit System Time 11 51 19 Use ENTER TAB System Date Thu 08 05 2003 or SHIFT TAB to Legacy Diskette A 1 44M 3 5 in select a field Language English Use or to ST320413A configure system time ASUS CD S520 A Not Detected Not Detected Not Detected Not Detected Select Screen Native Select Item Change Option General Help Save and Exit Exit Primary IDE Master Primary
34. enu then select Format A Format 3 1 2 Floppy Disk window appears e Select Create an MS DOS startup disk from the format options field then click Start Windows 2000 environment ao sp To create a set of boot disks for Windows 2000 a Insert a formatted high density 1 44 MB floppy disk into the drive b Insert the Windows 2000 CD to the optical drive c Click Start then select Run 2 2 Chapter 2 BIOS Setup d From the Open field type D bootdisk makeboot a assuming that D is your optical drive e Press lt Enter gt then follow screen instructions to continue 2 Copy the original or the latest motherboard BIOS file to the bootable floppy disk 2 1 2 Using AFUDOS to update the BIOS To update the BIOS using the AFUDOS EXE utility 1 Visit the ASUS website www asus com to download the latest BIOS file for your motherboard Save the BIOS file to a bootable floppy disk Write the BIOS file name on a piece of paper You need to type the exact BIOS file name at the prompt es 2 Copy the AFUDOS EXE utility from the support CD to the bootable floppy disk that contains the BIOS file 3 Boot the system from the floppy disk 4 Atthe DOS prompt type the command line afudos i filename where filename means the latest or original BIOS file that you copied to the bootable floppy disk 5 Press lt Enter gt The succeeding screen displays the status of the update process N The BIOS info
35. er Recall feature Shut down and reboot the system so BIOS can automatically reset parameter settings to its previous values 1 14 Chapter 1 Product introduction 2 USB device wake up 3 pin USBPW12 USBPW34 USBPW56 USBPW78 Set these jumpers to 5V to wake up the computer from S1 sleep mode CPU stopped DRAM refreshed system running in low power mode using the connected USB devices Set to 5VSB to wake up from S3 and S4 sleep modes no power to CPU DRAM in slow refresh power supply in reduced power mode USBPW12 USBPW34 12 23 O O 5V 5VSB Default USBPW78 USBPW56 12 2 3 0 5V 5VSB A8S X USB device wake up Default The USB device wake up feature requires a power supply that can provide 500mA on the 5VSB lead for each USB port Otherwise the system would not power up The total current consumed must NOT exceed the power supply capability 5VSB whether under normal condition or in sleep mode ASUS A8S X 1 15 110 Connectors This section describes and illustrates the motherboard rear panel and internal connectors 1 10 1 Rear panel connectors 1 2 11 10 9 8 7 PS 2 mouse port This green 6 pin connector is for a PS 2 mouse 2 Parallel port This 25 pin port connects a parallel printer a scanner or other devices 3 RJ 45 port This port allows connection to a Local Area Network LAN through a network hub Refer to the table below for the LAN port LED indications 4 Line In
36. field Language English Use or to Primary IDE Master ST320413A configure system time Primary IDE Slave ASUS CD S520 A Secondary IDE Master Not Detected Secondary IDE Slave Not Detected Third IDE Master Not Detected gt Fourth IDE Master Not Detected Onboard PCI S ATA Controller Native pen eee andel Change Option System Information General Help Save and Exit Exit American Megatrends Inc 2 3 1 System Time xx xx xx Allows you to set the system time 2 3 2 System Date Day xx xx xxxx Allows you to set the system date 2 3 3 Legacy Diskette A 1 44M 3 5 in Sets the type of floppy drive installed Configuration options Disabled 360K 5 25 in 1 2M 5 25 in 720K 3 5 in 1 44M 3 5 in 2 88M 3 5 in 2 3 4 Language English Allows you to select the BIOS language version Configuration options Chinese BIG5 Japanese Francais German English ASUS A8S X 2 11 2 3 5 Primary Secondary Third and Fourth IDE Master Primary and Secondary IDE Slave While entering Setup BIOS auto detects the presence of IDE devices There is a separate sub menu for each IDE device Select a device item then press lt Enter gt to display the IDE device information BIOS SETUP UTILITY ain Primary IDE Master OST Select the type Device Hard Disk of device connected Vendor ST320413A to the system Size 20 0GB LBA Mode Supported Block Mode 16 Sectors
37. hange only to selected fields such as Date and Time Full Access allows viewing and changing all the fields in the Setup utility Change User Password Select this item to set or change the user password The User Password item on top of the screen shows the default Not Installed After you have set a password this item shows Installed To set a User Password Select the Change User Password item and press Enter gt 2 Onthe password box that appears type a password combination of at least six 6 letters and or numbers then press lt Enter gt 3 Confirm the password when prompted The message Password Installed appears after you have successfully set your password The User Password item now shows Installed To change the user password follow the same steps as in setting a user password Clear User Password Select this item if you wish to clear the user password Password Check Setup When set to Setup BIOS checks for user password when accessing the Setup utility When set to Always BIOS checks for user password both when accessing Setup and booting the system Configuration options Setup Always ASUS A8S X 2 29 2 1 Exit menu The Exit menu items allow you to load the optimal or failsafe default values for the BIOS items and save or discard your changes to the BIOS items BIOS SETUP UTILITY Boot Exit Options Exit system setup ii l after saving the changes Exit amp Save Changes Ex
38. he data transfer from and to the device occurs one sector at a time Configuration options Disabled Auto 2 12 Chapter 2 BIOS Setup PIO Mode Auto Selects the PIO mode Configuration options Auto 0 1 2 3 4 DMA Mode Auto Selects the DMA mode Configuration options Auto SWDMAO SWDMA1 SWDMA2 MWDMAO MWDMA1 MWDMA2 UDMAO UDMA1 UDMA2 UDMA3 UDMA4 UDMA5 SMART Monitoring Auto Sets the Smart Monitoring Analysis and Reporting Technology Configuration options Auto Disabled Enabled 32Bit Data Transfer Disabled Enables or disables 32 bit data transfer Configuration options Disabled Enabled 2 3 6 Onboard PCI S ATA Controller Native Disables or sets the onboard PCI S ATA controller mode Configuration options Disabled Native RAID 2 3 7 System Information This menu gives you an overview of the general system specifications The items in this menu are auto detected by BIOS BIOS SETUP UTILITY AMI BIOS Version 08 00 08 Build Date 07 06 05 Processor Type AMD Athlon9tm 64 Processor 3200 Speed 2007MHz Count 21 System Memory Size 992MB felert S amp rreen AMI BIOS Displays the auto detected BIOS information Processor Displays the auto detected processor information System Memory Displays the auto detected system memory ASUS A8S X 2 13 2 4 Advanced menu The Advanced menu items allow you to change the settings for th
39. iP as The motherboard fully supports PCI Express the latest I O interconnect technology that speeds up the PCI bus PCI Express features point to point serial interconnections between devices and allows higher clockspeeds by carrying data in packets This high speed interface is software compatible with existing PCI specifications See page 1 13 for details USB 2 0 technology pA The motherboard implements the Universal Serial Bus 2 0 USB 2 0 specification extending the connection speed from 12 Mbps on USB 1 1 to a fast 480Mbps on USB 2 0 6 Channel Audio solution v omi uai The motherboard uses an onboard audio CODEC that lets you enjoy high quality 6 channel audio without having to buy advanced sound cards 1 3 2 Unique ASUS features CrashFree BIOS 2 E o A This feature allows you to restore the original BIOS data from the ASUS support CD in case when the BIOS codes and data are corrupted This protection eliminates the need to buy a replacement ROM chip See page 2 6 C P R CPU Parameter Recall en The C P R feature of the motherboard BIOS allows automatic re setting to the BIOS default settings in case the system hangs due to overclocking When the system hangs due to overclocking C P R eliminates the need to open the system chassis and clear the RTC data Simply shut down and reboot the system and BIOS automatically restores the CPU previous setting for each parameter eS hm ASUS MyLogo MyLaee This new
40. ick an icon to display more information Z If Autorun is NOT enabled in your computer browse the contents of the support CD to locate the file ASSETUP EXE from the BIN folder Double click the ASSETUP EXE to run the CD 3 2 Chapter 3 Software support 3 2 2 Drivers menu The drivers menu shows the available device drivers if the system detects installed devices Install the necessary drivers to activate the devices ASUS InstaAll Installation Wizard for Drivers Executes the ASUS installation wizard for drivers AMD Cool n Quiet Driver Installs the AMD Cool n Quiet technology drivers SIS RAID Controller Driver Install the SIS RAID Controller drivers SoundMAX ADI1986A Audio Driver Installs the SoundMAX ADI1986A audio driver and application Intel Gigabit Ethernet Driver Installs the Intel Gigabit LAN driver USB 2 0 Driver Installs the USB 2 0 driver to upgrade your USB 1 1 ports to USB 2 0 For Windows XP users make sure to install Windows XP SP 1 to support USB 2 0 3 2 3 Utilities menu The Utilities menu shows the applications and other software that the motherboard supports Utilities ect items on the right ASUS InstAIl Installation Wizard for Utilities Executes the ASUS installation wizard for utilities ASUS A8S X 3 3 ASUS PC Probe Il This smart utility monitors the fan speed CPU temperature and system voltages and alerts you on any detected problems This utility hel
41. is in the correct orientation The edge with external ports goes to the rear part of the chassis as indicated in the image below 1 5 3 Screw holes Place six 6 screws into the holes indicated by circles to secure the motherboard to the chassis AN Do not overtighten the screws Doing so may damage the motherboard Place this side towards the rear of the chassis ASUS A8S X 1 7 1 6 Geniral Processing Unit GPU 1 6 1 Overview The motherboard comes with a surface mount 939 pin Zero Insertion Force ZIF socket designed for the AMD Athlon 64 X2 AMD Athlon 64 FX and AMD Athlon 64 processors The 128 bit wide data paths of these processors can run applications faster than processors with only 32 bit or 64 bit wide data paths I A amp zm T bG e3 E HER A8S X CPU Socket 939 A Incorrect installation of the CPU into the socket may bend the pins and severely damage the CPU 1 8 Chapter 1 Product introduction 1 6 2 Installing the CPU Follow these steps to install a CPU 1 2 Locate the 939 pin ZIF socket on the motherboard Unlock the socket by pressing the lever sideways then lift it up to a 90 100 angle Socket Lever AN Make sure that the socket lever is lifted up to 90 100 angle otherwise the CPU does not fit in completely 3 Position the CPU above the socket such that the CPU corner with the gold triangle matches the socket corner
42. it amp Discard Changes F10 key can be used Discard Changes for this operation Load Setup Defaults Select Screen Select Item Change Option General Help Save and Exit xit Megatrends Inc Pressing lt Esc gt does not immediately exit this menu Select one of the options from this menu or lt F 10 gt from the legend bar to exit a n Exit amp Save Changes Once you are finished making your selections choose this option from the Exit menu to ensure that the values you selected are saved to the CMOS RAM An onboard backup battery sustains the CMOS RAM and stays on even when the PC is turned off When you select this option a confirmation window appears Select Ok to save changes and exit If you attempt to exit the Setup program without saving your changes the program prompts you with a message asking if you want to save your changes iu before exiting Press lt Enter gt to save the changes while exiting Exit amp Discard Changes Select this option only if you do not want to save the changes that you made to the Setup program If you made changes to fields other than System Date System Time and Password the BIOS asks for a confirmation before exiting Discard Changes Allows you to discard the selections you made and restore the previously saved values After selecting this option a confirmation appears Select Ok to discard any changes and load the previously saved values Load Setup Defaults This option all
43. jack This Line In light blue jack connects a tape player or other audio sources In 6 channel mode the function of this jack becomes Surround Out 5 Line Out jack This Line Out lime jack connects a headphone or a speaker In 6 channel mode the function of this jack becomes Front Speaker Out 6 Microphone jack This Mic pink jack connects a microphone In 6 channel mode the function of this jack becomes Center Bass N The functions of the Line Out Line In and Microphone jacks change when you select the 6 channel audio configuration as shown in the following table Audio 2 4 or 6 channel configuration Headphone 2 Speaker 4 Speaker 6 Speaker Light Blue Surround Out Surround Out Front Speaker Out Front Speaker Out Center Bass 7 USB2 0 ports 3 and 4 These two 4 pin Universal Serial Bus USB ports are available for connecting USB 2 0 devices 8 USB2 0 ports 1 and 2 These two 4 pin Universal Serial Bus USB ports are available for connecting USB 2 0 devices 9 Serial connector This 9 pin COM1 port is for serial devices 10 Coaxial S PDIF Out port This port connects an external audio output device via a coaxial S PDIF cable 11 PS 2 keyboard port This purple connector is for a PS 2 keyboard 1 16 Chapter 1 Product introduction 1 10 2 Internal connectors 1 IDE connectors 40 1 pin PRI IDE SEC IDE This connector supports the provided UltraATA133 IDE hard disk ribbon cable Connect the cable
44. l gt nn CAS Latency CL Auto Sets the CAS Latency Configuration options Auto 2 0 2 5 S 0 TRAS Auto This item sets the TRAS Configuration options Auto 5 CLK 6 CLK 7 CLK 8 CLK 9 CLK 10 CLK 11 CLK 12 CLK 13 CLK 14 CLK 15 CLK TRAP Auto Sets the TRP Configuration options Auto 2 CLK 3 CLK 4 CLK 5 CLK 6 CLK TRCD Auto Sets the TRCD Configuration options Auto 2 CLK 3 CLK 4 CLK 5 CLK 6 CLK TRAD Auto Sets the TRAD Configuration options Auto 2T ST 4T TRC Auto Sets the TRG Configuration options Auto 7T 8T 9T 10T 11T 12T 13T 14T 2 18 Chapter 2 BIOS Setup TRFC Auto Sets the TRFC Configuration options Auto 9T 10T 11T 12T 13T 14T 15T 16T TRWIT Auto Sets the TRWT Configuration options Auto 1 CLK 2 CLK 3 CLK 4 CLK 5 CLK 6 CLK Software Memory Hole Disabled Enables or disables the software memory remapping around the memory hole Configuration options Disabled Enabled Hardware Memory Hole item appears instead of Software Memory Hole if you installed a Revision EO processor HyperTransport Configuration BIOS SETUP UTILITY Advanced HyperTransport Configuration HT Width Auto HT Speed 800 MHz HT Width Auto Allows selection of HyperTransport upstream data width Configuration options 8 BIT 16 BIT Auto HT Speed 800 MHz Sets the Hyper
45. ler 2 N A Programmable Interrupt 3 11 IRQ holder for PCI steering 4 12 Communications Port COM1 5 13 IRQ holder for PCI steering 6 14 Floppy Disk Controller i 15 Printer Port LPT1 8 3 System CMOS Real Time Clock 9 4 IRQ holder for PCI steering 10 5 IRQ holder for PCI steering 11 6 IRQ holder for PCI steering 12 7 PS 2 Compatible Mouse Port 13 8 Numeric Data Processor 14 9 Primary IDE Channel 1 15 0 Secondary IDE Channel These IRQs are usually available for ISA or PCI devices ASUS A8S X 1 11 1 8 2 IRQ assignments for this motherboard on D gt OD O PCI slot 1 PCI slot 2 PCI slot 3 PCle x1 slot 1 PCle x1 slot 2 PCle x16 slot WM Q D Q WM Q D Q Onboard USB controller 1 Onboard USB controller 2 Onboard USB controller 3 Onboard USB 2 0 controller Onboard LAN Onboard Audio Serial ATA a When using PCI cards on shared slots ensure that the drivers support Share IRQ or that the cards do not need IRQ assignments Otherwise conflicts will arise between the two PCI groups making the system unstable and the card inoperable 1 8 3 PCI slots The PCI slots support PCI cards such as a LAN card SCSI card USB card and other cards that comply with PCI specifications 1 12 Chapter 1 Product introduction 1 8 4 PCI Express x1 slot This motherboard supports PCI Express x1 network cards SC
46. n effective desktop platform solution Supporting up to 4GB of system memory with PC3200 PC2700 PC2100 DDR DIMMs high resolution graphics via an PCI Express x16 slot Serial ATA RAID USB 2 0 and 6 channel audio features the motherboard takes you ahead in the world of power computing Before you start installing the motherboard and hardware devices on it check the items in your package with the list below 1 2 Package contents Check your motherboard package for the following items ASUS A8S X motherboard ASUS motherboard support CD 1 x Ultra DMA 133 100 66 cables 1 x Serial ATA cable 1 x Serial ATA power cable 1 x Floppy disk cable I O shield User guide SSSSSSSS Z If any of the above items is damaged or missing contact your retailer 1 2 Chapter 1 Product introduction 1 3 Special features 1 3 1 Product Highlights AMD Dual Core Architecture The motherboard supports AMD dual core processors containing two physical CPU cores with discrete L2 cache structure for each core to meet demands for more powerful computing See page 1 8 Latest processor technology ap The AMD Athlon 64FX and Athlon 64 desktop processors are based on AMD s 64 bit and 32 bit architecture which represents the landmark introduction of the industry s first x86 64 technology These processors provide a dramatic leap forward in compatibility performance investment protection and reduced total cost of ownership and
47. n supply the appropriate values that appear in brackets Example At the DOS prompt type the command line afudos i filename In this example you must supply a filename for filename afudos iA8S X ROM viii Chipset System Bus Expansion slots Storage LAN USB Special features Back panel I O A85 K specifications summary Socket 939 for AMD Athlon 64 X2 AMD Athlon FX AMD Athlon 64 AMD Sempron processors Supports AMD 64 architecture that enables simultaneous 32 bit and 64 bit architecture NorthBridge SiS 756 SouthBridge SiS 965L 2000 1600 MT s Dual channel memory architecture 4 x 184 pin DDR DIMM sockets for up to 4GB non ECC PC3200 PC2700 PC2100 DDR DIMMs 1 x PCI Express x16 slot 2 X PCI Express x1 slot 3 x PCI slots South Bridge supports 2x UltraATA 133 100 66 33 connectors 2x Serial ATA with RAID 0 RAID 1 and JBOD ADI AD1986A SoundMAX 6 channel audio CODEC S PDIF out interface Intel 82540EM PCI Gb LAN Maximum of eight 8 USB 2 0 ports ASUS Overclocking SFS Stepless Frequency Selection from 200 MHz up to 300 MHz at 1 MHz increment Adjustable FSB DDR ratio Fixed PCle PCI frequencies ASUS C P R ASUS Q Fan ASUS EZ Flash ASUS CrashFree BIOS2 ASUS MyLogo Multi Language BIOS AMD Cool n Quiet Technology 1 x Parallel port 1 x Serial port 1 x PS 2 keyboard port 1 x PS 2 mouse port 4 x USB 2 0 ports 1 x S PDIF out interface 1
48. on on ASUS hardware and software products The ASUS websites are listed in the ASUS Contact Information on the inside front cover 2 Optional Documentation Your product package may include optional documentation such as warranty flyers that may have been added by your dealer These documents are not part of the standard package Safety information Electrical safety To prevent electrical shock hazard disconnect the power cable from the electrical outlet before relocating the system When adding or removing devices to or from the system ensure that the power cables for the devices are unplugged before the signal cables are connected If possible disconnect all power cables from the existing system before you add a device Before connecting or removing signal cables from the motherboard ensure that all power cables are unplugged Seek professional assistance before using an adpater or extension cord These devices could interrupt the grounding circuit Make sure that your power supply is set to the correct voltage in your area If you are not sure about the voltage of the electrical outlet you are using contact your local power company If the power supply is broken do not try to fix it by yourself Contact a qualified service technician or your retailer Operation safety Before installing the motherboard and adding devices on it carefully read all the manuals that came with the package Before using the product mak
49. ows you to load the default values for each of the parameters on the Setup menus When you select this option or if you press lt F5 gt a confirmation window appears Select Ok to load default values Select Exit amp Save Changes or make other changes before saving the values to the non volatile RAM 2 30 Chapter 2 BIOS Setup Chapter 3 This chapter describes the contents of the support CD that comes with the motherboard package Software support 3 1 Install an operating system This motherboard supports Windows 2000 XP operating system OS Always install the latest OS version and corresponding updates to maximize the features of your hardware VA Motherboard settings and hardware options vary so use the setup procedures presented in this chapter for general reference only Refer to your OS documentation for more information 3 2 Support CD information The support CD that came with the motherboard contains useful software and several utility drivers that enhance the motherboard features Z The contents of the support CD are subject to change at any time without A notice Visit the ASUS website for updates 3 2 1 Running the support CD To begin using the support CD simply insert the CD into your CD ROM drive The CD automatically displays the Drivers menu if Autorun is enabled in your computer Click on an item to install Drivers lease select items on the right Click an item to install Cl
50. ps you keep your computer at a healthy operating condition Install ASUS Update This program allows you to download the latest version of the BIOS from the ASUS website Before using the ASUS Update make sure that you have an Internet connection so you can connect to the ASUS website Installing ASUS Update also installs ASUS Mylogo ASUS Screen Saver Installs the ASUS screen saver ASUS Cool n Quiet Utility Installs the ASUS AMD Cool n Quiet utility Acrobat Reader Installs the Adobe Acrobat Reader V7 0 The Acrobat Reader software is for viewing files saved in Portable Document Format PDF Microsoft DirectX 9 0 Driver Installs the Microsoft DirectX 9 0c driver Anti virus utility The anti virus application detects and protects your computer from viruses that destroys data 3 4 Chapter 3 Software support 3 2 4 Make Disk BG ASUS ABS X motherboard support CD for Windows XP Home Professiona Make Disk lease select items on the right Make SIS RAID Controller Driver Disk Creates the SIS RAID controller driver disk 3 2 5 Manual BG ASUS ABS X motherboard support CD for Windows XP Home Professional SIS965 SIS965L SATA RAID User s Manual Allows you to open the SIS965 SIS965L Serial ATA RAID user s manual ASUS A8S X 3 5 3 2 6 ASUS Contact Information Clicking the ASUS Contact Information tab displays as stated You may also find this information on the inside front cover of this
51. res Select Disabled if you do not wish to display the detected temperatures CPU Fan Speed xxxxRPM or N A Chassis Fan Speed xxxxRPM or N A Power Fan Speed xxxxRPM or N A The onboard hardware monitor automatically detects and displays the CPU chassis and power fan speeds in rotations per minute RPM If any of the fans is not connected to the motherboard the specitic field shows N A VCORE Voltage 3 3V Voltage 5V Voltage 12V Voltage The onboard hardware monitor automatically detects the voltage output through the onboard voltage regulators Q Fan Function Disabled Enables or disables the ASUS Q Fan function Configuration options Disabled Enabled Q FAN Mode Standard Sets the Q Fan mode This item appears only when the Smart Q Fan Function item is Enabled Configuration options Quiet Standard Cool ASUS A8S X 2 25 2 6 Boot menu The Boot menu items allow you to change the system boot options Select an item then press lt Enter gt to display the sub menu Main Advanced Power Boot Settings Specifies the Boot EEE ETTE ETG Device Priority Boot Device Priority sequence Boot Settings Configuration Security Select Screen Select Item Change Option General Help Save and Exit Exit 2 6 1 Boot Device Priority Boot Device Priority ist Boot Device lst FLOPPY DRIVE 2nd Boot Device PM ST320413A 3rd Boot Device SM ASUS CD S360 1st xxth Boot Device 1st Floppy Dri
52. rmation on the screen is for reference only What you see on your screen may not be exactly the same as shown A V gt afudos iA8S X ROM AMI Firmware Update Utility Version 1 10 Copyright C 2002 American Megatrends Inc All rights reserved Reading file Erasing flash Writing flash 0x0008CC00 9 DO NOT shutdown or reset the system while updating the BIOS Doing so may cause system boot failure ASUS A8S X 2 3 When the BIOS update process is complete the utility returns to the DOS prompt A gt afudos iA8S X ROM AMI Firmware Update Utility Version 1 10 Copyright C 2002 American Megatrends Inc All rights reserved Reading file Erasing flash Writing flash 0x0008CC00 9 Verifying flash done A gt Reboot the system from the hard disk 2 1 3 Using AFUDOS to copy BIOS from PC You can use the AFUDOS EXE utility to copy the current system BIOS to a floppy or hard disk and use it as a backup in case the system BIOS fails or gets corrupted To copy the BIOS from your PC using AFUDOS EXE At the DOS prompt type the command line afudos o filename where filename string of not more than eight 8 alpha numeric characters for the main filename and three 3 aloha numeric characters for the extension name 2 Press lt Enter gt Z The BIOS information on the screen is for reference only What you see on your screen may not be exactly the same as shown Main filename
53. s blue connector to the primary recommended or secondary IDE connector then connect the gray connector to the UltraATA133 slave device hard disk drive and the black connector to the UltraATA133 master device Z Follow the hard disk drive documentation when setting the device in master or slave mode Pin 20 on each IDE connector is removed to match the covered hole on the UltraATA cable connector This prevents incorrect orientation when you connect the cables The hole near the blue connector on the UltraATA cable is intentional SEC_IDE PRI_IDE A8S X IDE connectors 2 Floppy disk drive connector 34 1 pin FLOPPY This connector supports the provided floppy drive ribbon cable After connecting one end to the motherboard connect the other end to the floppy drive Pin 5 is removed to prevent incorrect insertion when using ribbon cables with pin 5 plug FLOPPY PIN 1 NOTE Orient the red markings on the floppy ribbon cable to PIN 1 A8S X Floppy disk drive connector ASUS A8S X 1 17 3 ATX power connectors 24 pin ATXPWR 4 pin ATX12V These connectors are for an ATX power supply plugs The power supply plugs are designed to fit these connectors in only one orientation Find the proper orientation and push down firmly until the connectors completely fit N e Use of an ATX 12 V Specification 2 0 compliant power supply unit PSU that provides a minimum power of 350 W is recommended for a fully
54. screen message appears Bad BIOS checksum Starting BIOS recovery Checking for floppy 3 Insert a floppy disk that contains the original or the latest BIOS file for this motherboard If all the necessary files are found in the floppy disk the BIOS update process continues VA Make sure that the BIOS file in the floppy disk is renamed as A8S X ROM gt 2 6 Chapter 2 BIOS Setup Bad BIOS checksum Starting BIOS recovery Checking for floppy Floppy found Reading file A8S X ROM Completed Start flashing DO NOT shut down or reset the system while updating the BIOS Doing so may cause system boot failure 2 When the BIOS update process is complete reboot the system To recover the BIOS from the support CD 1 Boot the system 2 When a corrupted BIOS is detected the following screen message appears Bad BIOS checksum Starting BIOS recovery Checking for floppy If there is no floppy disk found in the drive the system automatically checks the CD ROM pm 3 Place the support CD in the CD ROM The support CD contains the a working BIOS for this motherboard Bad BIOS checksum Starting BIOS recovery Checking for floppy Floppy not found Checking for CD ROM CD ROM found Reading file A8S X ROM Completed Start flashing DO NOT shut down or reset the system while updating the BIOS Doing so may cause system boot failure 2 When the BIOS upd
55. stem settings through the BIOS Setup menus Detailed descriptions of the BIOS parameters are also provided BIOS information ASUS A8S X 2 1 2 1 Managing and updating your BIOS The following utilities allow you to manage and update the motherboard Basic Input Output System BIOS setup 1 ASUS AFUDOS Updates the BIOS using a bootable floppy disk in DOS mode 2 ASUS EZ Flash Updates the BIOS using a floppy disk during POST ASUS CrashFree BIOS 2 Updates the BIOS using a bootable floppy disk or the motherboard support CD Refer to the corresponding sections for details on these utilities Important notes a e Itis recommended that you save a copy of the original motherboard BIOS file to a bootable floppy disk in case you need to restore the BIOS in the future Copy the original motherboard BIOS using AFUDOS reter to section 2 1 3 Using AFUDOS to copy BIOS from PC Visit the ASUS website and download the latest BIOS file for this motherboard using the ASUS Update utility 2 1 1 Creating a bootable floppy disk 1 Do either one of the following to create a bootable floppy disk DOS environment Insert a 1 44MB floppy disk into the drive At the DOS prompt type format A S then press lt Enter gt Windows XP environment Insert a 1 44 MB floppy disk to the floppy disk drive Click Start from the Windows desktop then select My Computer Select the 3 1 2 Floppy Drive icon Click File from the m
56. the black wire of each cable matches the ground pin of the connector A Do not forget to connect the fan cables to the fan connectors Lack of sufficient air flow within the system may damage the motherboard components These are not jumpers DO NOT place jumper caps on the fan connectors GND 12V Rotation HH CPU FAN A8S X Fan connectors 6 USB header 10 1 pin USB56 USB78 If the USB ports on the rear panel are inadequate a USB header is available for additional USB ports Connect the USB cable of the USB 2 0 module to this header You may install the USB module in the chassis front panel The module has two USB 2 0 ports for connecting next generation USB peripherals Such as high resolution cameras scanners and printers i fl P ET l a i gt FO gt N 0 pirg San Z A8S X USB 2 0 connectors Bam Bam 559 559 VA The USB GAME module is purchased separately gt ASUS A8S X 1 19 7 Chassis intrusion connector 4 1 pin CHASSIS This lead is for a chassis designed with intrusion detection feature This requires an external detection mechanism such as a chassis intrusion sensor or microswitch When you remove any chassis component the sensor triggers and sends a high level signal to this lead to record a chassis intrusion event By default the pins labeled Chassis Signal and Ground are shorted with a jumper cap If you wish to use the chassis intrusion detection feature
57. ve These items specify the boot device priority sequence from the available devices The number of device items that appear on the screen depends on the the number of devices installed in the system Configuration options xxxxx Drive Disabled 2 26 Chapter 2 BIOS Setup 2 6 2 Boot Settings Configuration Boot Settings Configuration Allows BIOS to skip tain tests while Quick Boot Enabled are Full Screen Logo Enabled Pose nana jna AddOn ROM Display Mode Force BIOS Mj oe Bootup Num Lock On needed to boot the PS 2 Mouse Support Auto EN Wait for Fl If Error Enabled Hit DEL Message Display Enabled Interrupt 19 Capture Disabled Select Screen Quick Boot Enabled Enabling this item allows the BIOS to skip some Power On Self Tests POST while booting to decrease the time needed to boot the system When set to Disabled BIOS performs all the POST items Configuration options Disabled Enabled Full Screen Logo Enabled Allows you to enable or disable the full screen logo display feature Configuration options Disabled Enabled Make sure that the above item is set to Enabled if you wish to use the ASUS MyLogo feature Add On ROM Display Mode Force BIOS Sets the display mode for option ROM Configuration options Force BIOS Keep Current Bootup Num Lock On Allows you to select the power on state for the NumLock Configuration options Off On PS 2 Mouse Support
58. venae a aaa 1 10 1 7 3 Installing a DIMM aan aaa kakaa 1 11 ES BPR ION SOS segen sra i jr dara 1 11 1 8 1 Standard interrupt assignments 1 11 1 8 2 IRQ assignments for this motherboard 1 12 183 PIG renn 1 12 1 8 4 PCI Express x1 slot rer 1 13 1 8 5 PCI Express x16 slot scssncvsncrsnnrssmewnsensndeesnecoesaiacts 1 13 ES JUMPE EE NE 1 14 LIO GONNECIOTSK o e enrgia odan ae o E 1 16 1 10 1 Rear panel connectors 00 aaa 1 16 1 10 2 Internal connectors aaa aaaaaa aaa aaa kaaa nakana aaa aaa ana 1 17 Chapter 2 BIOS Information Za 2 2 2 3 2 4 2 5 Managing and updating your BIOS rrrrrrnnnrvrrrrrannrvrsrrsnnnn 2 2 2 1 1 Creating a bootable floppy disk aaa 2 2 2 1 2 Using AFUDOS to update the BIOS ee 2 3 2 1 3 Using AFUDOS to copy BIOS from PC 2 4 2 1 4 Using ASUS EZ Flash to update the BIOS 2 5 2 1 5 Recovering the BIOS with CrashFree BIOS 2 2 6 BIOS Setup program vr 2 8 2 2 1 BIOS menu screen 000aaa aaa kaaa akan 2 9 Ze MUNN 2 9 2 2 3 Navigation Keys ovan kkk 2 9 2228 MENU OMS EEE vade tena 2 10 2 2 5 Sub menu itemS aaa aaa kakaa aaa 2 10 2 2 6 Configuration fields arr 2 10 2 2 7 F R WINAOW ren 2 10 2AB AU 2 10 2 2 9 General help rrrnrrrrrrrnnnsnvrrrrrnvnnsnrrrrnersnnsnnnrreesn 2 10 MAN Eve 2 11 2 3 1 System TIME ccccccesssssccceeeenssserseeeeensesseeeees 2 11 2 3 2 System
59. with a small triangle Carefully insert the CPU into the socket until it fits in place Small triangle a 4 The CPU fits only in one correct orientation DO NOT force the CPU into the 5 When the CPU is in place push socket to prevent bending the pins and damaging the CPU down the socket lever to secure the CPU The lever clicks on the side tab to indicate that it is locked Install specifically designed heatsink and fan assembly ASUS A8S X 1 9 11 1 74 system memory DIMM sockets location The following figure illustrates the location of the DDR DIMM sockets DIMM A1 DIMM A2 DIMM_B1 DIMM_B2 A8S X 184 pin DDR DIMM sockets AN Make sure to unplug the power supply before adding or removing DIMMs or other system components Failure to do so may cause severe damage to both the motherboard and the components We recommend to install the memory modules first before installing a PCI Express x16 card 1 7 2 Memory configurations You may install 64MB 128MB 256MB 512MB and 1GB DDR DIMMs into the DIMM sockets using the memory configurations in this section Important notes gt n Always install DIMMs with the same CAS latency For optimum compatibility it is recommended that you obtain memory modules from the same vendor Refer to the DDR400 Qualified Vendors List for details Due to chipset resource allocation the system may detect less than 4 GB of system memory when you install
60. x RJ 45 port 1 x Line In Line Out Microphone ports continued on the next page A85 K specifications summary Internal I O 2 X USB 2 0 connector for 4 additional USB ports CPU chassis power fan connectors 24 pin 4 pin ATX 12V power connectors CD AUX connectors Chassis intrusion connector GAME MIDI connector Front panel audio connector BIOS features 4Mb Flash ROM AMI BIOS with enhanced ACPI PnP DMI ASUS MyLogo SM BIOS 2 3 Industry standard PCI 2 2 USB 2 0 1 1 Manageability WfM 2 0 DMI WOL by PME WOR by PME Chassis intrusion SM BIOS 2 3 Power Requirement ATX power supply with 4 pin 12V plug Form Factor ATX form factor 12 in x 8 6 in 30 5 cm x 21 8 cm Support CD contents Device drivers ASUS PC Probe II Anti virus software OEM version Specifications are subject to change without notice Chapter 1 This chapter describes the features of the motherboard It includes brief descriptions of the motherboard components and illustrations of the layout jumper settings and connectors Product introduction 11 Welcome Thank you for buying the ASUS A8S X motherboard The motherboard delivers a host of new features and latest technologies making it another standout in the long line of ASUS quality motherboards The motherboard combines the powers of the AMD Athlon 64 X2 AMD Athlon 64 FX AMD Athlon 64 or AMD Sempron processor and the SiS 756 chipset to set a new benchmark for a

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