AMD ASUS A7M266 Socket A ATX Motherboard w/ Audio
Contents
1. 14 1 LAN RJA5 Connector eres Top 23 Wake On LAN Connector eee 12 Wake On Ring Connector sese 10 Hardware Monitoring ASUS AS 9 3 Fan Power and Speed Monitoring Connectors Power ATX Power Supply Connector sse 18 Special Feature Onboard LED sss 11 Form Factor ATX 12 ASUS A7M266 User s Manual 2 FEATURES 2 2 1 Component Locations OH LLI oc E t m TE N Motherboard Parts ASUS A7M266 User s Manual 13 3 HARDWARE SETUP nOg pjeogieuio y dNLas WH 14 3 1 Motherboard Layout 24 5cm 9 64in CPU FANT PWR FAN tl PS 2 T Mouse B Keyboard AMD761 DDR DIMM1 64 72 bit 184 pin module DDR DIMM2 64 72 bit 184 pin module System Controller 2 o o c c o o hi o z o a G Ka NB FAN Accelerated Graphic Port AGP PRO PCI Slot 1 Bas PCI Slot 2 DSCKF PCI Slot 3 A7M266 Enternet Lithium Cell p WOLCON CMOS Power EEE LAN_EN PCI Slot 4 sTPWR JEN SCH CHA FAN PCI Slot 5 ASUS PESE Eo 2Mbit Flash EEPROM Programmable BIOS VID4 REER VETERE Ese vi ier SECH beem PLED Monitor EEEE E PANEL Grayed components are available only on certain models at the time of purchase ASUS A7M266 User s Manual 30 6cm 12in 3 HARDWARE SETUP 3 2 Layout Contents Motherboard Settings 1 JEN p 19 JumperFree Mode2. 1 1 male TOP VIEW 20 pin bay 28 pin bay Rib inside slot Rib A7M266 Accelerated Graphics Port AGP PRO Expansion Cards CAUTION The AGP Pro slot is shipped with a safety tab on the 20 pin bay for use with AGP cards without a retention notch DO NOT remove this tab if you will be using such cards removing may cause these cards to shift which may cause damage to your card slot and motherboard Remove ONLY when you will be using an AGP Pro card Use a rigid tip such as a pen tip to dislodge and remove the tab from the bay Removing the tab D me F Lu o I e ei ASUS A7M266 User s Manual 31 3 HARDWARE SETUP 3 7 4 Audio Modem Riser AMR Slot This connector supports a specially designed audio and or modem card called an AMR Main processing is done through software and controlled by the motherboard s sys tem chipset This provides an upgradeable audio and or modem solution at an incred ibly low cost IMPORTANT The AMR slot of this motherboard shares the same expansion slot as PCI Slot 5 Because of this and its location the slot can only accept a specially designed AMR card optional The components of a standard AMR card and its bracket face toward the edge of the motherboard while those of the specially designed card face the expansion slots For availability see your vendor or dealer IT 3 D IT n 29 SE
3. O B el leel le PS 2 Keyboard 6 pin Female ASUS A7M266 User s Manual 33 3 HARDWARE SETUP 3 Universal Serial Bus Ports 0 amp 1 Black two 4 pin USB Two USB ports are available for connecting USB devices An optional USB header is available if you need more USB ports CY0000000000000 USB 0 OOOOOOOOOOOO rA O NECEM P osso Universal Serial Bus USB 1 4 Serial Port Connectors Teal Turquoise 9 pin COM1 COM2 Two serial ports can be used for pointing devices or other serial devices For setting up these ports see Onboard Serial Port 1 in 4 4 2 I O Device Configu ration for settings oo Ot i 9 Sa oc U 600006000000 COM COM2 Serial Ports 9 pin Male 5 Parallel Port Connector Burgundy 25 pin PRINTER You can enable the parallel port and choose the IRQ through Onboard Parallel Port see 4 4 2 I O Device Configuration NOTE Serial printers must be connected to the serial port Parallel Port 25 pin Female be Sch M E 34 ASUS A7M266 User s Manual 3 HARDWARE SETUP 6 Game MIDI Connector Gold 15 pin GAME AUDIO optional You may connect game joysticks or game pads to this connector for playing games Connect MIDI devices for playing or editing professional audio Game MIDI 15 pin Female E keen 050000000000 I o
4. This motherboard supports three pairs of differential clock signals per DIMM ASUS A7M266 User s Manual 3 HARDWARE SETUP 3 6 Central Processing Unit CPU The motherboard provides a Socket 462 or Socket A for CPU installation The CPU that came with the motherboard should have a fan and heatsink attached to it to prevent overheating If this is not the case then purchase and install a set before you turn on your system WARNING Make sure that the heatsink is mounted tightly against the processor Make sure also that there is sufficient air circulation across the processor s heat sink by regularly checking that your CPU fan is working Without sufficient cir culation the processor could overheat and damage both the processor and the motherboard You may install an auxiliary fan if necessary To install a CPU first turn off your system and remove its cover Locate the Socket 462 and open it by first pulling the lever sideways away from the socket then up wards to a 90 degree angle Insert the CPU with the correct orientation as shown The notched corner should be orientated toward the blank space on the socket near est the lever Because the CPU has a corner pin for two of the four corners the CPU will only fit in the orientation as shown The picture is for reference only you should have a CPU fan and heatsink that covers the face of the CPU With the added weight of the CPU fan and heatsink no force is required to insert the CP
5. Man LZ P e e a e el aR 4 3 1 Primary amp Secondary Master Slave see 4 3 2 Keyboard STT RE EE eorr eso Oar cada eek seas setts nash aE ESS 4 4 1 Chip Configuration ooa Ro TER ne ER o utr Se ERE gan 4 4 2 HO Device Configuration eene 4 4 3 PCI Configuration sa ect ten ot err ca teri n Ha 4 4 4 Shadow Configuration eese Power Men ce acte oa e eee d d ra cera EP Nut Eak 4 5 1 Power Up Control EE 4 5 2 Hardware MOBILE neues t Dos eR tena Ee LT Exit T TTT 5 SOFTWARE SETUP Install Operating System sse eee in te pata n dy aee tegens etg Slart WiINGOWS m HM A7 Series Motherboard Support CID Uninstalling Programs sss ee eee 6 SOFTWARE REFERENCE ASUS PC Probe D ASUS Upd lte iote ptt epe itg Tei pk p ANTI EEA E ENEE Rm 7 APPENDIX Mode BISQE du o c e e a c odds Glossary eid TROER ERAT R ve dor ANE US Ree ws S ga E Un wa DONE alee alsin ois ERE ele gales RS IUS ASUS A7M266 User s Manual FCC amp DOC COMPLIANCE Federal Communications Commission Statement This device complies with FCC Rules Part 15 Operation is subject to the following two conditions e 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
6. ROM The boot block will be updated automatically only when neces sary This will minimize the chance that a failed update will prevent your system from booting up When the programming is finished Flashed Successfully will be displayed U Pi DUR Alir Dag I UILNMIIMITLENL HEEL NM c o ST ZEE ov jand RAER Updating BIOS D 2 Tm Lu o o o tn 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 Writer 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 servicing ASUS A7M266 User s Manual 49 4 BIOS SETUP This page was intentionally left blank gt gw O O Q ep o m on c 0 lt 50 ASUS A7M266 User s Manual 4 BIOS SETUP 4 2 BIOS Setup Program This motherboard supports a programmable EEPROM that can be updated using the provided utility as described in 4 1 Managing and Updating Your BIOS The utility is used if you are installing a motherboard reconfiguring your system or prompted to Run Setup This section describes how to configure your system using this utility Even if you are not prompted to use the Setup program at some time in the future you may want to change the co
7. 9 7 Audio Port Connectors Three 1 8 GAME AUDIO optional Line Out lime can be connected to headphones or preferably powered speak ers Line In light blue allows tape players or other audio sources to be re corded by your computer or played through the Line Out lime Mic pink allows microphones to be connected for inputting voice NOTE Only on model with onboard PCI audio To set up a four speaker system connect rear side speakers to the Line In connector and enable the C Media 4 speaker function see 6 4 2 Enabling 4 Speaker Function c Oooooooooooooo G EE EE O E e e M xil Line Out Line ln Mic 1 8 Stereo Audio Connectors 8 Fast Ethernet Port Connector RJ45 optional The RJ45 connector is optional at the time of purchase and is located on top of the USB connectors the connector allows the motherboard to connect to a Local Area Network LAN through a network hub OO RJ45 Oo Oo O Oo O Q9 G O Oo O Oo Oo ZO O M QO QOO QOO OO ls ENS S L JO E e l DI A m gloss jo ASUS A7M266 User s Manual 35 D me e Lu wn ba e Connectors 3 HARDWARE SETUP 9 Floppy Disk Drive Connector 34 1 pin FLOPPY This connector supports the provided floppy drive ribbon cable After connect ing the single end to the board connect the two plugs o
8. Infrared Module Connector 5 pins 13 WOLCON p 38 Wake On LAN Connector 3 pins 14 WOR p 38 Wake On Ring Connector 2 pins 15 CHA FAN p 39 Chassis Power Supply CPU Chipset Fan Connectors 3 pins PWR FAN CPU FAN NB FAN 16 USBPORT p 40 USB Header 10 1 pins 17 SMB p 40 SMBus Connector 5 1 pins 18 AFPANEL p 41 ASUS iPanel Connector 24 1 pins continued ASUS A7M266 User s Manual 15 3 HARDWARE SETUP 19 JTPWR p 41 Power Supply Thermal Sensor Connector 2 pins 20 ATXPWR p 42 ATX Power Supply Connector 20 pins 21 IDELED p 42 IDE Activity LED 2 pins 22 PWR LED PANEL p 43 System Power LED Lead 3 pins 23 SPEAKER PANEL p 43 System Warning Speaker Connector 4 pins 24 MSG LED PANEL p 43 System Message LED 2 pins 25 SMI PANEL p 43 System Management Interrupt Lead 2 pins 26 PWR SW PANEL p 43 ATX Soft Off Switch Lead 2 pins 27 RESET PANEL p 43 Reset Switch Lead 2 pins sjuajuo 1no e Le I o m E c U 16 ASUS A7M266 User s Manual 3 HARDWARE SETUP 3 3 Getting Started Before using your computer you must complete the following steps 1 Shi pepe Check Motherboard Settings Install Memory Modules Install the Central Processing Unit CPU Install Expansion Cards Connect Ribbon Cables Panel Wires and Power Supply Setup the BIOS Software Getting Started D me F Lu o I e ASUS A7M266 User s Manual 17 3 HARDWARE SE
9. JumperFree Jumper Mode 2 VIO p 20 Clock Generator Voltage Setting 3 30V 3 56V 3 45V VIOI 2 5V Voltage Setting 2 7V 2 9V 2 8V 3 LAN EN p 20 Onboard PCI LAN Setting Disable Enable 4 USBPWRI USBPWR2 p 21 USB Device Wake Up 45V 5VSB 5 AUDIO EN p 21 Onboard PCI Audio Setting Disable Enable 6 DSCKF 1 4 p 22 CPU External Frequency Setting 7 VIDI VID2 VID3 VIDA p 24 Voltage Regulator Output Setting Expansion Slots Sockets 1 DDR System Memory p 25 System Memory Support 2 DIMM1 2 p 26 DDR DIMM Memory Module Support 3 Socket 462 Socket A p 27 CPU Support 4 PCII 2 3 4 5 p 29 32 bit PCI Bus Expansion Slots 5 AGP PRO p 31 Accelerated Graphics Port AGP Pro m 6 AMR p 32 Audio Modem Riser AMR Slot Connectors ES 1 PS2KBMS p 33 PS 2 Mouse Porv Connector 6 pin female ed S 2 PS2KBMS p 33 PS 2 Keyboard Port Connector 6 pin female 3 USB p 34 Universal Serial Bus Connectors 0 amp 1 Two 4 pin female 4 COMI COM2 p 34 Serial Port Connector 9 pin male 5 PRINTER p 34 Parallel Port Connector 25 pin female 6 GAME AUDIO p 35 Game MIDI Connector 15 pin female optional 7 GAME AUDIO p 35 Audio Port Connectors Three 1 8 optional 8 RJ45 p 35 Fast Ethernet Port Connector RJ45 optional 9 FLOPPY p 36 Floppy Disk Drive Connector 34 pins 10 PRIMARY IDE p 36 IDE Connectors Two 40 1 pins SECONDARY IDE 11 CHASSIS p 37 Chassis Intrusion Lead 4 1 pins 12 IR p 37
10. ac o 0 A7M266 Audio Modem Riser AMR Slot 32 ASUS A7M266 User s Manual 3 HARDWARE SETUP 3 8 External Connectors WARNING 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 IMPORTANT Ribbon cables should always be connected with the red stripe to Pin 1 on the connectors Pin 1 is usually on the side closest to the power connec tor on hard drives and CD ROM drives but may be on the opposite side on floppy disk drives Check the connectors before installation because there may be exceptions IDE ribbon cable must be less than 46 cm 18 in with the sec ond drive connector no more than 15 cm 6 in from the first connector 1 PS 2 Mouse Connector Green 6 pin PS2KBMS The system will direct IRQ12 to the PS 2 mouse if one is detected If one is not detected expansion cards can use IRQ12 See PS 2 Mouse Function Control in 4 4 Advanced Menu Connectors D me e Lu wn ba e PS 2 Mouse 6 pin Female rA i s E R L b Oo z OOOOO NI OOOOO S esse jo el Jo 2 PS 2 Keyboard Connector Purple 6 pin PS2KBMS This connection is for a standard keyboard using an PS 2 plug mini DIN This connector will not allow standard AT size large DIN keyboard plugs You may use a DIN to mini DIN adapter on standard AT keyboards LO OO
11. shown in Back View and connect a ribbon cable from the module to the motherboard s SIR connector according to the pin definitions D me e Lu wn ba e Front View Back View Lex A7M266 Infrared Module Connector ASUS A7M266 User s Manual 37 3 HARDWARE SETUP 13 Wake On LAN Connector 3 pin WOLCON This connector connects to a LAN card with a Wake On LAN output such as the ASUS PCI L101 Ethernet card see 7 Appendix The connector powers up the system when a wakeup packet or signal is received through the LAN card IMPORTANT This feature requires that the Wake On LAN or PCI Modem feature is enabled see 4 5 1 Power Up Control and that your system has an ATX power supply with at least 720mA 5V standby power IMPORTANT Requires an ATX power supply with at least 720mA 5 volt It standby power WOLCON n k Ground CH PME 5 Volt Standby BEI Tab A7M266 Wake On LAN Connector Le K sz am Sa oc U 14 Wake On Ring Connector 2 pin WOR This connector connects to internal modem cards with a Wake On Ring output The connector powers up the system when a ringup packet or signal is received through the internal modem card NOTE For external modems Wake On Ring is detected through the COM port IMPORTANT This feature requires that the Wake On LAN or PCI Modem feature is enabled see 4 5 1 Power Up Control and that your system has an
12. the memory system s ability to service among others high multimedia requirements Stepless Frequency Selection Allows CPU external FSB frequency settings to be set in IMHz increments or reduction JumperFree Mode Allows processor settings and easy overclocking of fre quency and Vcore voltage all through BIOS setup when JumperFree mode is enabled Easy to use DIP switches instead of jumpers are included to allow manual adjustment of the processor s external frequency AGP Pro Slot Supports AGP AGP Pro cards for high performance component level interconnection targeted at 3D graphical applications supporting 133MHz 4X mode UltraDMA 100 Support Comes with an onboard PCI Bus Master IDE con troller with two connectors that support four IDE devices on two channels Sup ports UItraDMA 100 UltraDMA 66 UltraDMA 33 PIO Modes 3 amp 4 and Bus Master IDE DMA Mode 2 and Enhanced IDE devices such as DVD ROM CD ROM CD R RW LS 120 and Tape Backup drives Wake On LAN Connector Supports Wake On LAN activity through an op tional ASUS PCI L101 10 100 Fast Ethernet PCI card see 7 Appendix Wake On Ring Connector Supports Wake On Ring activity through a PCI modem card that supports a Wake On Ring connector USB Supports up to 4 USB ports two on the back panel and two midboard for more peripheral connectivity options ASUS A7M266 User s Manual 2 FEATURES One Touch Management Supports an optional ASUS iPanel an eas
13. 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 energy 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 e Re orient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment to an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help WARNING Any changes or modifications to this product not expressly ap proved by the manufacturer could void any assurances of safety or performance and could result in violation of Part 15 of the FCC Rules Reprinted from the Code of Federal Regulations 47 part 15 193 1993 Washington DC Office of the Federal Register National Archives and Records Administration U S Government Printing Office Canadian Department of Communications Statement This digital apparatus does not exceed the Cla
14. 105MHz L zs S I m mre mi Ee e z m Z ve Z om Ka m gt m zm o d Ge e 0 LO A7M266 CPU External Frequency Selection WARNING Frequencies other than the recommended CPU bus frequencies are not guaranteed to be stable Overclocking your processor is not recommended It may result in a slower speed and premature wearing of the processor 22 ASUS A7M266 User s Manual 3 HARDWARE SETUP Manual CPU Settings NOTE JumperFree mode must be disabled Set the DIP switches by the internal speed of your processor as follows CPU Bus Freq CPU Freq Mult Bus F 1 2 3 4 Athlon 1 2GHz 9 0x 133MHz ON ON ON OFF Athlon 1GHz 7 5x 133MHz ON ON ON OFF Athlon 1 1GHz 11 0x 100MHz ON OFF ON ON Athlon 1GHz 10 0x 100MHz ON OFF ON ON Athlon 950MHz 9 5x 100MHz ON OFF ON ON Athlon 900MHz 9 0x 100MHz ON OFF ON ON Athlon 850MHz 8 5x 100MHz ON OFF ON ON Athlon 800MHz 8 0x 100MHz ON OFF ON ON Athlon 750MHz 7 5x 100MHz ON OFF ON ON Athlon 700MHz 7 0x 100MHz ON OFF ON ON Athlon 650MHz 6 5x 100MHz ON OFF ON ON Athlon 600MHz 6 0x 100MHz ON OFF ON ON uy e Duron 750MHz 7 5x 100MHz ON OFF ON ON Duron 700MHz 7 0x 100MHz ON OFF ON ON m e Duron 650MHz 6 5x 100MHz ON OFF ON ON o E Gei For updated processor settings visit the ASUS web site see ASUS CONTACT INFORMATION
15. 2 8 Volt 3 4 3 45 Volt 3 4 VIO1 d LS di K Ha p E 2 2 7 Volt 2 9 Volt 2 8 Volt default zx VIO o a o d 2 I E all SE i b gt a eL 3 30 Volt 3 56 Volt 3 45 Volt P A7M266 Voltage Settings default E D WARNING Using a higher voltage may help when overclocking but may result in the shortening of your computer component s life It is strongly recommended that you leave these settings on their default 3 Onboard PCI LAN Setting LAN EN optional The onboard LAN may be enabled or disabled using this jumper Setting LAN EN Disable 1 2 Enable 2 3 default LAN EN 12 23 Disable Enable default A7M266 Lan Setting 20 ASUS A7M266 User s Manual 4 5 3 HARDWARE SETUP USB Device Wake Up USBPWR1 USBPWR2 Set these jumpers to 5V to allow wake up from the S1 sleep state CPU stopped RAM refreshed system running in a low power mode using connected USB devices and 5VSB to allow wake up from the S3 sleep state no power to CPU RAM in slow refresh power supply in a reduced power mode An ATX power supply that can supply at least 2A on the 5VSB lead is required when these jumpers are set to 5VSB The default is set to 5V because not all computers have the appropriate ATX power supply Your computer will not power ON if you set this to 5 VSB and do not have the appropriate ATX power supply Setting USBPWRI USBPWR2
16. 28822 HCD NIA PC2100 64MB Micron 46V8M8 75 HCD N A PC2100 128MB Micron 46V8M8 75 HCD N A PC2100 256MB Samsung K4H280838B TCBO ASUS A7M266 User s Manual 25 D me LLI o I e System Memory CD lt P D 3 z D 3 lt Get o m E c U 26 3 HARDWARE SETUP 3 5 1 General DIMM Notes DIMMs that have more than 18 chips are not supported on this motherboard e For the system CPU bus to operate at 200MHz 266MHz use only PC1600 PC2100 compliant DIMMs e ASUS motherboards support SPD Serial Presence Detect DIMMs This is the memory of choice for best performance vs stability BIOS shows SDRAM memory on bootup screen Single sided DDR DIMMs come in 64 128 and 256MB double sided come in 128 256 and 512MB WARNING Be sure that the DIMMs you use can handle the specified DDR SDRAM MHz or else bootup will not be possible 3 5 2 Memory Installation WARNING Make sure that you unplug your power supply when adding or removing memory modules or other system components Failure to do so may cause severe damage to both your motherboard and expansion cards see 3 3 Hardware Setup Procedure for more information Insert the module s as shown Because the number of pins are different on either side of the breaks the module will only fit in the orientation shown A 184 pin DDR SDRAM DIMM has a single notch slightly to the right of center A7M266 184 Pin DDR DIMM Sockets
17. 5V 2 3 default 5VSB 1 2 D e USBPWR 1 w USBPWR2 D 2 2 12 23 m e DE no 5VSB 5V RS default lt 2 T o PEE e o Onboard PCI Audio Setting AUDIO_EN optional The onboard PCI audio may be enabled or disabled using this jumper Setting AUDIO EN Disable 1 2 Enable 2 3 default AUDIO EN 12 23 D H Disable Enable Default A7M266 Onboard Audio Setting ASUS A7M266 User s Manual 21 3 HARDWARE SETUP 6 CPU External Frequency Setting DSCKF Switches 1 4 This option tells the clock generator what frequency to send to the CPU SDRAM and the chipset This allows the selection of the CPU s External frequency The CPU External Frequency multiplied by the Frequency Multiple equals the CPU s Internal frequency the advertised CPU speed IMPORTANT 1 To use this feature JEN see 1 JumperFree Mode JEN in 3 HARD WARE SETUP must be set to Jumper mode or 1 2 2 In JumperFree mode all dip switches DSW 1 DSW 4 must be set to OFF 3 WhenJumperFree mode is enabled use BIOS setup in place of these switches set Operating Frequency Setting to User Define under 4 4 Advanced Menu in BIOS Setup so you can set the CPU Frequency DSCKF ES e vue L O z om CPU 110MHz 115MHz 133MHz L mM CPU 100MHz 103MHz
18. 7 Updating BIOS D me Lu wn o 2 jaa 4 BIOS SETUP 5 Select 1 Save Current BIOS to File from the Main menu and press Enter The Save Current BIOS To File screen appears 6 Type a filename and the path for example A XXX XX XXX and then press Enter 4 1 2 pdaling BIOS Procedures NG Only update your BIOS if you have problems with your mother P and you know that the new BIOS revision will solve your problems Care less updating can result in your motherboard having more problems 1 Download an updated ASUS BIOS file from the Internet WWW or FTP see ASUS CONTACT INFORMATION 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 The Update BIOS Including Boot Block and ESCD screen appears 5 Type the filename of your new BIOS and the path for example A X XX XX XXX and then press lt Enter gt NOTE To cancel this operation press lt Enter gt sog Bunepdn ES D O o o m Cc U Updete BHS Lm ug Lea Beat Piock and ESCH 48 ASUS A7M266 User s Manual 4 BIOS SETUP 6 When prompted to confirm the BIOS update press Y to start the update U Pi DUR Alir Dag I UILNMIIMIUTLENL i Sinead HSECHOH o OT ZERO 5 jarnel MAZE 7 The utility starts to program the new BIOS information into the flash
19. 8 2 1 2 Specifications Optional Components 9 21 3 Special T 10 2 1 4 Performance Features ioa Eoo te ba ees 10 21 5 KEE 11 2 2 Motherboard E GOERENS 12 2 2 1 Component Location sese se eee 13 3 HARDWARE SETUP 14 3 1 Motherboard Layout gereent 14 3 2 E Ee E EE 15 WEE L ds eset dex HI opt eate tutae ER rune bue E RR DES 17 3 4 Motherboard Settings ees ege sos genee ep teneat agnos 18 3 5 System Memory DDR DIMM eene 25 3 5 1 General DIMM Notes E 26 3 3 2 Memory InstallabtOfi scans petia e 26 3 6 Central Processing Unit CPU eset reete ei etn bebe 27 31 Expanson Cards iee esserne ieiet isi cect ye rotes EEES Mya Sas quU DE 28 3 7 1 Expansion Card Installation Procedure 28 3 7 2 Assigning IRQs for Expansion Cards 30 3 7 3 Accelerated Graphics Port Pro AGP Pro 30 3 7 4 Audio Modem Riser AMR Slot sss 32 3 8 External Connectors oce actes eee 33 3 9 Starting Up the First Time oot pe veo eie ied ta 45 4 BIOS SETUP 47 4 1 Managing and Updating Your BIO 47 4 1 1 Upon First Use of the Computer System 47 4 1 2 Updating BIOS Procedures sss sese 48 4 2 BIOS Geteste pet rr te eere Oti pim 51 221 BIOS Menu Bar T 92 4 2 2 Legend Bab aset E He ab ker en ee 52 ASUS A7M266 User s Manual 4 3 44 4 5 4 6 4 7 5 1 5 2 5 3 5 4 6 1 6 2 6 3 7 1 7 2 CONTENTS
20. ATX power supply with at least 720mA 5V standby power ip DH WOR a oao Tn m Li S Ground Ring AZM266 8 tu Ce A7M266 Wake On Ring Connector 38 ASUS A7M266 User s Manual 3 HARDWARE SETUP 15 Chassis Power Supply CPU and Chipset Fan Connectors 3 pin CHA FAN PWR FAN CPU FAN NB FAN These connectors support cooling fans of 350mA 4 2 Watts 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 different The red wire should be positive while the black should be ground Connect the fan s plug to the board taking into consid eration the polarity of the connector NOTE The Rotation signal is to be used only by a specially designed fan with rotation signal The Rotations per Minute RPM can be monitored using ASUS PC Probe see 6 SOFTWARE REFERENCE WARNING 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 e o S J PWR_FAN N D J a CPU FAN S Z i t iz l GND S l NB FAN Y Ge _ LO Je EI CHA FAN MS Ces LL ri n c gt
21. CSI MO ZIP CD Floppy boot selection Integrated Infrared IrDA Support Integrated IR supports an optional re mote control package for wireless interfacing with external peripherals per sonal gadgets or an optional remote controller 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 Color coded Connectors To enhance user accessibility to system components and to meet PC 99 compliancy major connectors in this motherboard are color coded 2 1 2 Specifications Optional Components Smart Networking optional Features the 3Com 3C920 Fast Ethernet controller which supports Wired for Management remote wake up and OnNow initiatives to reduce Total Cost of Ownership TCO PCI Audio optional Features Cmedia CMI8738 3D positional audio controller with high speed PCI v2 1 bus controller and legacy SB DSP audio emulator ASUS A7M266 User s Manual N LLI oc E t m TE N Specifications N m C TI zu S p ad 3 X C TI N 10 2 FEATURES 2 1 3 Special Features ACPI Ready Advanced Configuration Power Interface ACPI provides more Energy Saving Features for operating systems that support OS Direct Power Management OSPM functionality With these features implemented in the OS PCs can be ready around the clock yet satisfy all the energy saving standa
22. E 35 ASUS A7M266 User s Manual 23 z e 9S 23 D la G o D Q GD D a 5 e LO dNLAS WH 24 3 HARDWARE SETUP 7 Voltage Regulator Output Setting VID1 VID2 VID3 VID4 This jumpers allow you to manually adjust the CPU core voltage It is recom mended to use CPU Default as the CPU core voltage CPU Default means the Vcore is generated according to the CPU VID configuration For each jumper setting there are two voltage options depending on the CPU used 1234 1234 1234 VID4 a ED ES VID3 d By e ER VID1 a xj a p lt lt 1 85 1 825Volts 1 8 1 775Volts 1 75 1 725Volts VIDA vip3 ENEE lt EE o M vip2 Le ke BB d el vip LEE s s s a p 1 7 1 675Volts 1 65 1 625Volts 1 6 1 575Volts VIDA R ED a viD3 RS ic RS oa vip2 E e ERE uou vip ES e D I s ER 1 55 1 525Volts 1 50 1 475Volts 1 45 1 425Volts VID4 Rp lt 6 8 GR VID3 e n ZEN lt dr el VID2 n nj EE a B vii Le SS Re e e 4 1 40 1 375Volts 1 35 1 325Volts 1 30 1 275Volts VID4 E me m A7M266 CPU Core Voltage vn S oe E Z E 4 Selection VID2 e sl BB D D VID1 on n nj D un a On 1 25 1 225Volts 1 20 1 175Volts 1 15 1 125Volts VID4 R s EHE VID3 XE s m vpo LS RR S LG vm CHJ GE 1 10 1 075Volts CPU Default JumperFree Default ASUS A7M266 User s Manual 3 HARDWARE SETUP 3 5 System Memory DDR DIMM This motherboard
23. JUS A7M266 266MHz FSB DDR RAM AGP Pro Socket A Motherboard USER S MANUAL USER S NOTICE 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 ASUS PROVIDES THIS MANUAL AS IS WITHOUT WARRANTY OF ANY KIND EI THER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WAR RANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE IN NO EVENT SHALL ASUS ITS DIRECTORS OFFICERS EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUEN TIAL 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 Product warranty or service will not be extended if 1 the product is repaired modified or al tered 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 trademarks or copyrights of their respective companies and are used only for ide
24. PU heat source just below the CPU socket Chipsets AMD 761 system controller eene 1 N VIA VT82C686B PCISGU uere e agence aede ex eed nasse 8 Z m 2Mbit Programmable Flash EEPROM nsssssssesssseseeseseseseeseseesee 6 gm Si D gt Main Memory Maximum 2GB support ec Z DINIM SOCKS zu sistent ech on nak baal aca Risk 3 Z M PC2100 PC1600 DDR memory support z Expansion Slots 5 PCI Slots tnn 16 1 Accelerated Graphics Port AGP Pro Slot 17 1 Audio Modem Riser AMR Slot Shared 13 System I O 1 Floppy Disk Driver Connector see 5 2 IDE Connectors UltraDMA 100 Support 4 1 Parallel Port Connector eene Top 21 1 Serial COMI Port Connector ccece cece Bottom 22 1 Serial COM2 Port Connector s seeseeeseeeereeese Bottom 20 USB Connectors Port 0 E Port 1 sss 23 USB Header Port 2 amp POrt 3 5 satt co etae 7 1 PS 2 Mouse Connector sse eee Top 24 PS 2 Keyboard Connector cceceseseeeeseeeees Bottom 24 Audio PCI Audio Chipset optional 15 1 Game MIDI Connector on audio model only Top 19 1 Line Out Connector on audio model only Bottom 19 1 Line In Connector on audio model only Bottom 19 1 Microphone Connector on audio model only Bottom 19 Network Features 3Com 3C920 Fast Ethernet Controller
25. Q s z A7M266 12 Volt Cooling Fan Power ASUS A7M266 User s Manual 39 oo GE sz om Sa oc U 3 HARDWARE SETUP 16 USB Headers 10 1 pin USBPORT If the USB port connectors on the back panel are inadequate two USB headers are available for two additional USB port connectors Connect the USB headers to an optional 2 port USB connector set and mount the bracket to an open slot on your chassis USBPORT 4eMog gSn MEIS edasn ON ON edasn edasn Jamod JSN A7M266 USB Port Recommended Setup Use USBPORT with the bundled 2 port connector set 17 SMBus Connector 5 1 pin SMB This connector allows you to connect SMBus System Management Bus de vices SMBus devices communicate by means of the SMBus with an SMBus host and or other SMBus devices SMBus is a specific implementation of an DC bus which is a multi device 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 SMBDATA 5V AZM266 1 or m TAS SMB A7M266 SMBus Connector 40 ASUS A7M266 User s Manual 3 HARDWARE SETUP 18 ASUS iPanel Connector 24 1 pin AFPANEL This connector allows you to connect an optional ASUS iPanel an easy to ac cess drive bay with front I O ports status LEDs and space reserved for a hard disk drive If you are not using an ASUS
26. RQ conflicts Standard Interrupt Assignments IRQ Priority Standard Function Tl eo 0 1 System Timer B 1 2 Keyboard Controller S z 2 N A Programmable Interrupt H 3 11 Communications Port COM2 Y 4 12 Communications Port COM1 9 0 5 13 Sound Card sometimes LPT2 6 14 Floppy Disk Controller 1 15 Printer Port LPT1 8 3 System CMOS Real Time Clock 9 4 ACPI Mode when used 10 5 IRQ Holder for PCI Steering CES 0 IRQ Holder for PCI Steering 125 7 PS 2 Compatible Mouse Port 13 8 Numeric Data Processor 14 9 Primary IDE Channel 15 10 Secondary IDE Channel These IRQs are usually available for PCI devices Interrupt Request Table for this Motherboard INT A INT B INT C INT D PCIslotl hared PCI slot 2 shared PCI slot 3 shared PCI slot 4 shared PCI slot 5 shared AGP Pro slot shared shared Onboard PCI audio shared shared AMR devices shared Onboard USB controller shared 30 ASUS A7M266 User s Manual 3 HARDWARE SETUP 3 7 3 Accelerated Graphics Port Pro AGP Pro This motherboard provides an Accelerated Graphics Port Pro AGP Pro slot to sup port AGP AGP Pro graphics cards such as an ASUS AGP V6800DDR 64M CAUTION To avoid damaging your AGP AGP Pro graphics card your computer s power supply should be unplugged before inserting your graphics card into the slot AGP Card without Retention Notch
27. TUP 3 4 Motherboard Settings This section explains in detail how to change your motherboard s function settings through the use of switches and or jumpers WARNING Computer motherboards and expansion cards contain very delicate Integrated Circuit IC chips To protect them against damage from static electric ity you should follow some precautions whenever you work on your computer 1 Unplug your computer when working on the inside 2 Usea 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 or connectors or 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 5 Ensure that the ATX power supply is switched off before you plug in or remove the ATX power connector on the motherboard WARNING Make sure that you unplug your power supply when adding or re moving system components Failure to do so may cause severe damage to your motherboard peripherals and or components The onboard LED when lit acts as a reminder that the system is in suspend or soft off mode and not powered OFF REEL LES z e 9S 23 D m1 Sex o D a CO D a 5 e LO ON OFF Standby Powered Power Off A7M266 Onboa
28. U Once com pletely inserted close the socket s lever while holding down the CPU NOTES 1 When inserting or removing the CPU make sure the ZIF socket arm is fully extended 90 100 upright and that the CPU is kept parallel to the socket Do NOT force the CPU into the socket as it will damage the pins It should drop into the socket with minimal pressure If not check the CPU for bent pins or check the orientation of the CPU 2 Do not forget to set the correct Bus Frequency for your processor or else boot up may not be possible 3 Socket A processors require a socket mounted thermal resistor CAUTION Be careful not to scrape the motherboard when mounting unmounting a clamp style processor fan or else damage may occur to the motherboard 5 AMD Athlon Rm af A7M266 Socket A NOTCH ASUS A7M266 User s Manual D me Lu o ba e 3 HARDWARE SETUP This page was intentionally left blank e o m E Cc U 28 ASUS A7M266 User s Manual 3 HARDWARE SETUP 2 7 Expansion Cards WARNING 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 3 7 1 Expansion Card Installation Procedure 1 Read the documentation for your expansion card and make any necessary hard ware or sof
29. ds from the time you turn on the power the system may have failed a power on test Recheck your jumper settings and con nections or call your retailer for assistance Award BIOS Beep Codes Beep Meaning One short beep when No error during POST displaying logo Long beeps in an endless loop No DRAM installed or detected One long beep followed by Video card not found or video card three short beeps memory bad High frequency beeps when CPU overheated system is working System running at a lower frequency ASUS A7M266 User s Manual Powering Up D me ken Lu o I e 45 3 HARDWARE SETUP 7 During power on hold down Delete to enter BIOS setup Follow the instructions in 4 BIOS SETUP Powering Off your computer You must first exit or shut down your operating system before switching off the power switch For ATX power supplies you can press the ATX power switch after exiting or shutting down your operating system If you use Windows 9X click the Start button click Shut Down and then click Shut down the computer The power supply should turn off after Windows shuts down NOTE The message You can now safely turn off your computer will not appear when shutting down with ATX power supplies dn Buuewog Le I o m E Cc U 46 ASUS A7M266 User s Manual 4 BIOS SETUP 4 1 Managing and Updating Your BIOS 4 1 1 Upon First Use of the Computer System It is recommended that you save a copy
30. elect the boot disk through the BIOS IMPORTANT UltraDMA100 66 IDE devices must use a 40 pin 80 conductor IDE cable for 100MB s transfer rates NOTE Orient the red markings usually zigzag on the IDE ribbon cable to PIN 1 Primary IDE Connector Secondary IDE Connector A7M266 IDE Connectors Ger 36 ASUS A7M266 User s Manual 3 HARDWARE SETUP 11 Chassis Intrusion Lead 4 1 pin CHASSIS This requires an external detection mechanism such as a chassis intrusion moni tor sensor or microswitch The sensor is triggered when a high level signal is sent to the Chassis Signal lead which occurs when a panel switch or light detec toris triggered This function works with an optional ASUS CIDB chassis intru sion module see your vendor for more details If the chassis intrusion lead is not used a jumper cap must be placed over the pins to close the circuit Power Supply Stand By gnal E 2 00 end mcr Tab CHASSIS A7M266 Chassis Open Alarm Lead Connectors 12 Standard Infrared Module Connector 5 1 pin IR This connector supports an optional wireless transmitting and receiving infrared module This module mounts to a small opening on system cases that support this feature You must also configure the setting through UART2 Use Infrared see 4 4 2 I O Device Configuration to select whether UART2 is directed for use with COM2 or IrDA Use the five pins as
31. f the system s power supply ASUS A7M266 User s Manual 43 D me Tm Lu o I e Connectors 3 HARDWARE SETUP This page was intentionally left blank Le K sz om Sa oc U 44 ASUS A7M266 User s Manual 3 HARDWARE SETUP 3 9 Starting Up the First Time L 25 3 After all connections are made close the system case cover Be sure that all switches are off in some systems marked with O Connect the power supply cord into the power supply located on the back of your system case according to your system user s manual Connect the power cord into a power outlet that is equipped with a surge protector You may then turn on your devices in the following order a Your monitor b External SCSI devices starting with the last device on the chain c Your system power For ATX power supplies you need to switch on the power supply as well as press the ATX power switch on the front of the case The power LED on the front panel of the system case will light For ATX power supplies the system LED will light when the ATX power switch is pressed The LED on the monitor may light up or switch be tween orange and green after the system s if it complies with green standards or if it has a power standby feature The system will then run power on tests While the tests are running the BIOS will alarm beeps or additional messages will appear on the screen If you do not see any thing within 30 secon
32. hen the system is powered on and blinks when it is in sleep or soft off mode 23 System Warning Speaker Connector 4 pin SPEAKER This 4 pin connector connects to the case mounted speaker 24 System 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 re ceived This function requires an ACPI OS and driver support 25 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 will be instantly decreased to save electricity and expand the life of certain components when the system is not in use This 2 pin connector see the preceding figure connects to the case mounted suspend switch 26 ATX Power Switch Soft Off Switch Lead 2 pin PWR SW The system power is controlled by a momentary switch connected to this lead Pushing the button once will switch the system between ON and SLEEP or ON and SOFT OFF depending on your BIOS or OS setting Pushing the switch while in the ON mode for more than 4 seconds will turn the system off The system power LED shows the status of the system s power 27 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 off your power switch This is a preferred method of rebooting to prolong the life o
33. iPanel you can connect an optional wireless transmitting and receiving infrared module to the SIR connector or an optional consumer infrared connector set to the CIR and SIR connectors for both wireless transmitting and remote control functions through one external infrared module AFPANEL 45V IRRX GND SMBDATA 43VSB SMBCLK LOCKKEY NC IRTX NC GND NC ek RRX NC o mu GND t CIRRX Je GND I 5VSB CIRRX 5VSB CHASSIS EXTSMI 5V MLED PCIRST IRTX NC m o o z A7M266 Front Panel Connector BATT NC Standard Infrared SIR Front View Back View Connectors D me e Lu wn ba e 19 Power Supply Thermal Sensor Connector 2 pin block JTPWR If you have a power supply with thermal monitoring connect its thermal sensor cable to this connector A7M266 Thermal Sensor Connectors ASUS A7M266 User s Manual DU JTPWR Thermal Sensor for Power Supply 41 3 HARDWARE SETUP 20 ATX Power Supply Connector 20 pin block ATXPWR This connector connects to an ATX power supply The plug from the power sup ply will only insert in one orientation because of the different hole sizes Find the proper orientation and push down firmly making sure that the pins are aligned IMPORTANT Make sure that your ATX power supply can supply at least 10mA o
34. jumper caps v 1 ASUS Support CD with drivers and utilities v 1 This Motherboard User s Manual ASUS A7M266 User s Manual ES L gt e o rc Ke Manual Checklist suoneoijioedg m T A Cc SA m o 2 FEATURES 2 1 The ASUS A7M266 The ASUS A7M266 motherboard is carefully designed for the value conscious PC user who wants advanced features processed by the fastest processors 2 1 1 Specifications AMD Athlon Duron Processor Support Supports Socket A based AMD Athlon Duron processors North Bridge System Chipset AMD 761 chipset with AGP PCI Memory controller supports a 266MHz Front Side Bus FSB supports DDR SDRAM DIMM complies with AGP 2 0 specifications for 4X 2X and 1X AGP modes and PCI 2 2 bus interface with support for 5 PCI masters It is optimized to deliver enhanced AMD Athlon processor system performance Super South South Bridge System PCIset VIA VT82C686B PCIset with PCI Super I O Integrated Peripheral Controller PSIPC with support for UltraDMA 100 which allows burst mode data transfer rates of up to 100MB sec AC97 audio USB controller with root hub and four function ports PC2100 PC1600 DDR SDRAM Support Equipped with two Double Data Rate Dual Inline Memory Module DDR DIMM sockets to support up to 2GB of DDR SDRAM DDR SDRAM is the newest memory standard with the highest bandwidth and lowest latency currently available and dramatically improves
35. me ASUS A7M266 Manual Revision 1 04 E776 Release Date May 2001 ASUS A7M266 User s Manual ASUS CONTACT INFORMATION ASUSTeK COMPUTER INC Asia Pacific Marketing Address 150 Li Te Road Peitou Taipei Taiwan 112 Telephone 886 2 2894 3447 Fax 886 2 2894 3449 Email info asus com tw Technical Support MB Others Tel 886 2 2890 7121 English Notebook Tel 886 2 2890 7122 English Desktop Server Tel 886 2 2890 7123 English Fax 886 2 2893 7775 Email tsd asus com tw WWW www asus com tw FTP ftp asus com tw pub ASUS ASUS COMPUTER INTERNATIONAL America Marketing Address 6737 Mowry Avenue Mowry Business Center Building 2 Newark CA 94560 USA Fax 1 510 608 4555 Email tmd1 asus com Technical Support Fax 1 510 608 4555 Email tsd asus com WWW www asus com FTP ftp asus com Pub ASUS ASUS COMPUTER GmbH Europe Marketing Address Harkortstr 25 40880 Ratingen BRD Germany Fax 49 2102 442066 Email sales asuscom de for marketing requests only Technical Support Hotline MB Others 49 2102 9599 0 Notebook 49 2102 9599 10 Fax 49 2102 9599 11 Support Email www asuscom de de support for online support WWW www asuscom de FTP ftp asuscom de pub ASUSCOM ASUS A7M266 User s Manual CONTENTS 1 INTRODUCTION 7 1 1 How This Manual Is Organized 7 V2 Tem Checklist ee e ob tm A oe oo b ea etes 7 2 FEATURES 8 2 1 R AS B PLZ OO EE 8 Dy Lek MPC E e
36. n the 5 volt standby lead 4 5 VSB You may experience difficulty in power ing ON your system if your power supply cannot support the load For Wake On LAN support your ATX power supply must supply at least 720mA 5VSB 12 0Volts 5 0 Volts 5V Standby 5 0 Volts Power Good s E 5 0 Volts Ground Ground 5 0 Volts Ground Ground Ss Ground 5 0 Volts Sr Power Supply On oo Ground Ground 12 0Volts O IX 3 3 Volts G gt 43 3 Volts vz 3 3Volts SE C m SU Re mr ATX gt TI ad A7M266 ATX Power Connector U 21 IDE Activity LED 2 pin IDELED This connector supplies power to the cabinet s IDE activity LED Read and write activity by devices connected to the Primary Secondary IDE and Primary Secondary ATA100 connectors will cause the LED to light up TIP If the case mounted LED does not light try reversing the 2 pin plug IDELED Ser A7M266 IDE Activity LED 42 ASUS A7M266 User s Manual 3 HARDWARE SETUP The following PANEL illustration is used for items 22 27 EM Power LED LED Comedor 2 t O O er e e P e Speak Requires an ATX power supply uU A7M266 System Panel Connectors 22 System Power LED Lead 3 1 pin PWR LED This 3 1 pin connector connects to the system power LED which lights w
37. n the other end to the floppy drives Pin 5 is removed to prevent inserting in the wrong orienta tion when using ribbon cables with pin 5 plugged D g CT FLOPPY NOTE Orient the red markings on the floppy ribbon cable to PIN 1 PIN 1 H aco ama A7M266 Floppy Disk Drive Connector 10 Primary Blue Secondary IDE Connectors Two 40 1pin IDE These connectors support the provided UltraDMA 100 IDE hard disk ribbon cable Connect the cable s blue connector to the motherboard s primary recom mended or secondary IDE connector and then connect the gray connector to your UltraDMA 100 slave device hard disk drive and the black connector to your UltraDMA 100 master device It is recommended that non UltraDMA 100 devices be connected to the secondary IDE connector If you install two hard disks you must configure the second drive to Slave mode by setting its jumper accordingly Please refer to your hard disk documentation for the jumper settings BIOS now supports specific device bootup see 4 6 Boot Menu Pin 20 is removed to prevent inserting in the wrong orientation when using ribbon cables with pin 20 plugged oo Ot i 9 Sa oc U TIP You may configure two hard disks to be both Masters with two ribbon cables one for the primary IDE connector and another for the secondary IDE connector You may install one operating system on an IDE drive and another on a SCSI drive and s
38. nfiguration of your computer For example you may want to enable the Security Password Feature or make changes to the power management settings It will then be necessary 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 EEPROM The EEPROM on the motherboard stores the Setup utility When you start up the computer the system provides you with the opportunity to run this program This appears during the Power On Self Test POST Press Delete to call up the Setup utility If you are a little bit late in pressing the mentioned key POST will continue with its test routines thus preventing you from calling up Setup If you still need to call Setup restart the system by pressing Ctrl Alt Delete or by press ing the Reset button on the system chassis You can also restart by turning the system off and then back on again But do so only if the first two methods fail The Setup program has been 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 among the predetermined choices To access the BIOS Setup program press the Delete key after the computer has run through its POST NOTE Because the BIOS software is constantly being updated the following BIOS screens and descriptions are for reference purposes only and may not re flec
39. ntification or explanation and to the owners benefit without intent to infringe s AMD Athlon are trademarks of Advanced Micro Devices Inc VIA is a trademark of VIA Technologies Inc Windows and MS DOS are registered trademarks of Microsoft Corporation Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated Trend and Chip Away Virus are trademarks of Trend Micro Inc Other company and product names may be trademarks or registered trademarks of the respective companies with which they are associated The product name and revision number are both printed on the product itself Manual revisions 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 SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUALARE FURNISHED FOR INFORMATIONAL USE ONLY AND ARE SUBJECT TO CHANGE AT ANY TIME WITH OUT NOTICE AND SHOULD NOT BE CONSTRUED AS ACOMMITMENT BY ASUS ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURA CIES THAT MAY APPEAR IN THIS MANUAL INCLUDING THE PRODUCTS AND SOFT WARE DESCRIBED IN IT Copyright 2001 ASUSTeK COMPUTER INC All Rights Reserved Product Na
40. of the original motherboard BIOS along with a Flash Memory Writer utility AFLASH EXE to a bootable floppy disk in case you need to reinstall the BIOS later AFLASH EXE is a Flash Memory Writer utility that updates the BIOS by uploading a new BIOS file to the programmable flash ROM on the motherboard This file works only in DOS mode To determine the BIOS version of your mother board check the last four numbers of the code displayed on the upper left hand corner of your screen during bootup Larger numbers represent a newer BIOS file 1 Type FORMAT A S at the DOS prompt to create a bootable system floppy disk DO NOT copy AUTOEXEC BAT amp CONFIG SYS to the disk 2 Type COPY DAAFLASHMAFLASH EXE A assuming D is your CD ROM drive to copy AFLASH EXE to the just created boot disk NOTE AFLASH works only in DOS mode It will not work with DOS prompt in Windows and will not work with certain memory drivers that may be loaded when you boot from your hard drive It is recommended that you reboot using a floppy 3 Reboot your computer from the floppy disk NOTE BIOS setup must specify Floppy as the first item in the boot sequence 4 In DOS mode type A AFLASH Enter to run AFLASH IMPORTANT If unknown is displayed after Flash Memory the memory chip is either not programmable or is not supported by the ACPI BIOS and there fore cannot be programmed by the Flash Memory Writer utility ASUS A7M266 User s Manual 4
41. ough an internal or external modem With this benefit on hand users can access vital information from their computers from anywhere in the world e System Resources Alert Today s operating systems such as Windows 98 Millenium and Windows NT 2000 require much more memory and hard drive space to present enormous user interfaces and run large applications The sys tem resource monitor will warn the user before the system resources are used up to prevent possible application crashes Suggestions will give the user informa tion on managing their limited resources more efficiently Temperature Monitoring and Alert CPU temperature is monitored by the ASUS ASIC to prevent system overheat and system damage Voltage Monitoring and Alert System voltage levels are monitored to ensure stable voltage to critical motherboard components Voltage specifications are more critical for future processors so monitoring is necessary to ensure proper system configuration and management Chassis Intrusion Detection Supports chassis intrusion monitoring through the ASUS ASIC A chassis intrusion event is kept in memory on battery power for more protection ASUS A7M266 User s Manual 11 2 FEATURES 2 2 Motherboard Components See opposite page for locations Location Processor Support Socket 462 for AMD Athlon Duron Processors 2 NOTE A CPU thermal sensor is integrated on the motherboard located near the center of the C
42. rd LE 18 ASUS A7M266 User s Manual 3 HARDWARE SETUP Motherboard Features Settings DIP Switches DSCKF The motherboard s onboard functions are adjusted through the DIP switches The white block represents the switch s position The example below shows all the switches in the OFF position DSCKF 1 Frequency Selection 2 Frequency Selection 3 Frequency Selection 4 Frequency Selection eo of 23 ne AS 1 JumperFree Mode JEN S 2 This jumper allows you to enable or disable the JumperFree mode The Io JumperFree mode allows processor settings to be made through the BIOS r 2 setup see 4 4 Advanced Menu Setting JEN JumperFree 2 3 default Jumper Mode 1 2 3 4 VID4 s EE VID3 s EE vipls Rl 12 2 3 NA E Jumper Mode Jumper Free AE Default A7M266 JumperFree Mode Setting JEN NOTE In JumperFree mode all VID1 4 must be set to 3 4 ASUS A7M266 User s Manual 19 3 HARDWARE SETUP 2 Voltage Settings VIO VIO1 VIO allows you to select the voltage supplied to the clock generator and VIOT for overclocking only allows you to select the voltage supplied to the chipset and DDR DIMM modules The default voltage should be used for better system reliability Setting VIOI1 Setting VIO 2 7 Volt 1 2 default 3 30 Volt 1 2 default 2 9 Volt 2 3 3 56 Volt 2 3
43. rds To fully utilize the benefits of ACPI an ACPI supported OS such as Windows 98 2000 Millenium must be used Easy Installation Incorporates BIOS that supports autodetection of hard disk drives PS 2 mouse and Plug and Play devices to make the setup of hard disk drives expansion cards and other devices virtually automatic New Compliancy Both the BIOS and hardware levels of this motherboard meet the stringent requirements for PC 99 certification The new PC 99 requirements for systems and components are based on the following high level goals Sup port for Plug and Play compatibility and power management for configuring and managing all system components and 32 bit device drivers and installation procedures for Windows95 98 NT Color coded connectors and descriptive icons make identification easy as required by PC 99 2 1 4 Performance Features Concurrent PCI Concurrent PCI allows multiple PCI transfers from PCI mas ter busses to the memory and processor High Speed Data Transfer Interface IDE transfers using UltraDMA 33 Bus Master IDE can handle rates up to 33MB s This motherboard with its chipset and support for UltraDMA 100 increases the data transfer rate to 100MB s UltraDMA 100 is backward compatible with DMA 66 DMA 33 and DMA and with existing DMA devices and systems so there is no need to upgrade current EIDE IDE drives and host systems UltraDMA 100 66 require a 40 pin 80 con ductor cable to be enabled DDR SDRAM Op
44. ss 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 Cet appareil num rique de la classe B est conforme la norme NMB 003 du Canada ASUS A7M266 User s Manual 1 INTRODUCTION 1 1 How This Manual Is Organized This manual is divided into the following sections 1 INTRODUCTION Manual information and checklist 2 FEATURES Production information and specifications 3 HARDWARE SETUP Instructions on setting up the motherboard 4 BIOS SETUP Instructions on setting up the BIOS 5 SOFTWARE SETUP Instructions on setting up the included software 6 SOFTWARE REFERENCE Reference material for the included software 7 APPENDIX Optional items and general reference 1 2 Item Checklist Check that your package is complete If you discover damaged or missing items contact your retailer Package Contents Optional Items v 1 ASUS Motherboard ASUSCIDB chassis intrusion detec V 1 40 pin 80 conductor ribbon tion module cable for internal UltraDMA ASUS IrDA compliant infrared 100 UltraDMA 66 also module compatible with UItraDMA 33 C ASUS MR I Modem Riser Card IDE drives devices v 1 Ribbon cable for internal UltraDMA 33 IDE drives v 1 Ribbon cable for one 5 25 and two 3 5 floppy disk drives V 1 ASUS 2 port USB Connector Set v 1 Bag of spare
45. t your BIOS screens exactly ASUS A7M266 User s Manual 51 D me ke Lu o o jaa Program Information
46. timized Performance This motherboard supports a new gen eration memory Double Data Rate DDR Dynamic Random Access Memory SDRAM which is compatible to the industry standard SDRAM This new memory technology increases performance by executing two actions per clock cycle resulting in data transfer rates of up to 2 1 GB s for 133MHz DDR SDRAM and 1 6GB s for 100MHz DDR SDRAM ASUS A7M266 User s Manual 2 FEATURES xU 5 Intelligence Dual Function Power Button Pushing the power button for less than 4 sec onds when the system is in the working state places the system into one of two states sleep mode or soft off mode depending on the BIOS or OS setting see PWR Button 4 Secs in 4 5 Power Menu When the power button is pressed for more than 4 seconds the system enters the soft off mode regardless of the BIOS setting e Fan Status Monitoring and Alarm To prevent system overheat and system damage the CPU power supply and system fans can be monitored for RPM and failure All fans are set for its normal RPM range and alarm thresholds Message LED requires ACPI OS support Turbo LEDs now act as informa tion providers Through the way a particular LED illuminates the user can de termine if there are messages waiting in the mailbox A simple glimpse provides useful information to the user Intelligence o LLI oc E lt H TE N e Remote Ring On requires modem This allows a computer to be turned on remotely thr
47. tware 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 Carefully align the card s connectors and press firmly Secure the card on the slot with the screw you removed above Replace the computer system s cover Set up the BIOS if necessary such as IRQ xx Used By ISA Yes in 4 4 3 PCI Configuration 7 Install the necessary software drivers for your expansion card St BA ES e Expansion Cards D me H Lu wn I co ASUS A7M266 User s Manual 29 3 HARDWARE SETUP 3 7 2 Assigning IRQs for Expansion Cards Some expansion cards need an IRQ to operate Generally an IRQ must be exclu sively 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 additional IRQ will be used If your moth erboard also has MIDI enabled another IRQ will be used leaving 4 IRQs free IMPORTANT If using PCI cards on shared slots make sure that the drivers sup port Share IRQ or that the cards do not need IRQ assignments Conflicts will arise between the two PCI groups that will make the system unstable or cards inop erable The following table lists the default IRQ assignments for standard PC devices Use this table when configuring your system and for resolving I
48. uses only Double Data Rate DDR Dual Inline Memory Modules DIMMs Two sockets are available for 2 5Volt power level unbuffered registered Double Data Rate Synchronous Dynamic Random Access Memory DDR SDRAM of 64MB 128MB 256MB 512MB 1GB to form a memory size between 64MB to 2GB One side with memory chips of the DIMM takes up one row on the motherboard DDR DIMMs support non ECC modules used on desktops laptops available in registered typically used in servers and unbuffered typically used in PCs ver sions NOTE The DDR memory bus runs at the same frequency as the CPU front side bus Install memory in any combination as follows DIMM Location 184 pin DIMM Total Memory Socket 1 Rows 0 amp 1 64MB 128MB 256MB 512MB 1GB x1 Socket 2 Rows 2 amp 3 64MB 128MB 256MB 512MB 1GB x1 Total System Memory Max 2GB ASUS A7M266 Qualified DDR DIMM Vendor List The following lists the memory modules that have been tested and qualified for use with this motherboard Vendor Model Type Size Manufacturer Samsung M368L1713BTI CBO PC2100 128MB Samsung K4H280838B TCBO Samsung M368L1713BT1 CA0 PC1600 128MB Samsung K4H280838B TCA0 Samsung M368L3313BTI CBO PC2100 256MB Samsung K4H280838B TCBO Samsung M368L3313BT1 CA0 PC1600 256MB Samsung K4H280838B TCA0 Micron MT8VDDT864AG 265A2 PC2100 64MB Micron 46V8M8 75 Micron MTI6VDDTI1664AG 265A2 PC2100 128MB Micron 46V8M8 75 TwinMOS N A PC2100 128MB Hyundai HY5DU
49. y to access box with system information LED display front I O ports and space reserved for a hard disk drive With an ASUS iPanel you can monitor your computer system s vital components PC Health Monitoring Provides an easy way to examine and manage system status information such as CPU and systerm voltages temperatures and fan status through the onboard hardware ASUS ASIC and the bundled ASUS PC Probe SMBus Features the System Management Bus interface which is used to physi cally transport commands and information between SMBus devices PCI AMR Expansion Slots Provides five 32 bit PCI Rev 2 2 expansion slots which can support Bus Master PCI cards such as SCSI or LAN cards PCI supports up to 133MB s maximum throughput and one Audio Modem Riser AMR slot shared which supports a very affordable audio and or modem riser card Super Multi I O Provides two high speed UART compatible serial ports and one parallel port with EPP and ECP capabilities Enhanced ACPI amp Anti Boot Virus Protection Programmable BIOS Flash EEPROM offering enhanced ACPI for Windows 982000 Millenium compatibility built in firmware based virus protection and autodetection of most devices for virtually automatic setup Concurrent PCI Concurrent PCI allows multiple PCI transfers from PCI mas ter busses to the memory and processor Smart BIOS 2Mb firmware provides Vcore and CPU SDRAM frequency ad justments boot block write protection and HD S
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