Motherboard A8N-VM
E2295 Revised Edition V2 October 2005 Copyright © 2005 ASUSTeK 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”).
Contents Notices ................................................................................................ vi Safety information ............................................................................. vii A8N-VM specifications summary ...................................................... viii Chapter 1: Product introduction 1.1 Welcome! .............................................................................. 1-2 1.2 Package contents ...................................................
Contents Chapter 2: BIOS setup 2.1 2.2 2.3 2.4 iv Managing and updating your BIOS ........................................ 2-2 2.1.1 Creating a bootable floppy disk .............................. 2-2 2.1.2 ASUS EZ Flash utility .............................................. 2-3 2.1.3 AFUDOS utility ........................................................ 2-4 2.1.4 ASUS CrashFree BIOS 2 utility ................................ 2-6 2.1.5 ASUS Update utility ......................................
Contents 2.5 2.6 2.7 Power menu ........................................................................ 2-30 2.5.1 Suspend Mode ...................................................... 2-30 2.5.2 Repost Video on S3 Resume ................................ 2-30 2.5.3 ACPI 2.0 Support .................................................. 2-30 2.5.4 ACPI APIC Support ................................................ 2-30 2.5.5 APM Configuration ................................................ 2-31 2.5.
Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: • This device may not cause harmful interference, and • This device must accept any interference received including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
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.
A8N-VM specifications summary CPU Socket 939 for AMD Athlon™ 64FX/Athlon™ 64 X2/ Athlon™ 64 processors Supports AMD Cool ‘n’ Quiet™ Technology Chipset Northbridge: NVIDIA® GeForce™ 6100 GPU Southbridge: NVIDIA® nForce™410 MCP Front Side Bus 2000/1600 MT/s Memory Dual-channel memory architecture 4 x 184-pin DIMM sockets support up to 4 GB of unbufferred ECC/non-ECC 400/333 MHz DDR memory modules Expansion slots 1 x PCI Express™ x16 slot 1 x PCI Express™ x1 slot 2 x PCI slots Graphics Integrated in
A8N-VM specifications summary BIOS features 4 Mb Flash ROM, AMI BIOS, PnP, DMI, WfM2.0, ACPI 2.0a, SM BIOS 2.3 Rear panel 1 x Parallel port 1 x LAN (RJ-45) port 4 x USB 2.
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This chapter describes the motherboard features and the new technologies it supports.
1.1 Welcome! T h a n k y o u f o r b u y i n g a n A S U S® A 8 N - V M m o t h e r b o a r d ! The motherboard delivers a host of new features and latest technologies, making it another standout in the long line of ASUS quality motherboards! Before you start installing the motherboard, and hardware devices on it, check the items in your package with the list below. 1.2 Package contents Check your motherboard package for the following items.
NVIDIA® GeForce™ 6100 GPU and NVIDIA® nForce™ 410 MCP chipsets The NVIDIA® GeForce™ 6100 graphics processing unit (GPU) Northbridge supports Microsoft® DirectX 9.0 Shader Model 3.0, and PCI Express interface. The NVIDIA® nForce™ 410 media and communications processor (MCP) Southbridge delivers NVIDIA® 10/100 Mbps LAN and NVIDIA® MediaShield storage management technology allowing easy RAID configuration (RAID 0, RAID 1) for Serial ATA II.
S/PDIF digital sound ready The motherboard supports the S/PDIF Out function through the S/PDIF interfaces on the rear panel and at midboard. The S/PDIF technology turns your computer into a high-end entertainment system with digital connectivity to powerful audio and speaker systems. See page 1-24 for details. USB 2.0 technology The motherboard implements the Universal Serial Bus (USB) 2.0 specification, dramatically increasing the connection speed from the 12 Mbps bandwidth on USB 1.
1.4 Before you proceed Take note of the following precautions before you install motherboard components or change any motherboard settings. • Unplug the power cord from the wall socket before touching any component. • Use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, before handling components to avoid damaging them due to static electricity • Hold components by the edges to avoid touching the ICs on them.
1.5 Motherboard overview 1.5.1 Motherboard layout 24.5cm (9.6in) Super I/O CPU_FAN EATXPWR FLOPPY DDR DIMM_B1 (64 bit,184-pin module) ¤ nVIDIA LAN_USB12 DDR DIMM_B2 (64 bit,184-pin module) USB12 DDR DIMM_A1 (64 bit,184-pin module) USBPW12 Top:Line In Center:Line Out Bottom:Mic In SEC_IDE GeForce“6100 CHA_FAN PRI_IDE VGA DDR DIMM_A2 (64 bit,184-pin module) USBPW34 A8N-VM Socket 939 PARALLEL PORT ATX12V PCIEX16_1 ¤ 24.5cm (9.
1.5.2 Placement direction When installing the motherboard, make sure that you place it into the chassis in the correct orientation. The edge with external ports goes to the rear part of the chassis as indicated in the image below. 1.5.3 Screw holes Place eight (8) screws into the holes indicated by circles to secure the motherboard to the chassis. A8N-VM Do not overtighten the screws! Doing so can damage the motherboard.
1.6 Central Processing Unit (CPU) The motherboard comes with a surface mount 939-pin Zero Insertion Force (ZIF) socket designed for the AMD Athlon™ 64FX/AMD Athlon™ 64 / Athlon™ 64 X2 processor. 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. Take note of the marked corner (with gold triangle) on the CPU. This mark should match a specific corner on the socket to ensure correct installation.
3. Position the CPU above the socket such that the CPU corner with the gold triangle matches the socket corner with a small triangle. 4. Carefully insert the CPU into the socket until it fits in place. Small triangle Gold triangle The CPU fits only in one correct orientation. DO NOT force the CPU into the socket to prevent bending the pins and damaging the CPU! 5. When the CPU is in place, push down the socket lever to secure the CPU. The lever clicks on the side tab to indicate that it is locked. 6.
1.7 System memory 1.7.1 Overview The motherboard comes with four 184-pin Double Data Rate (DDR) Dual Inline Memory Modules (DIMM) sockets. A8N-VM The following figure illustrates the location of the sockets: 1.7.
Recommended memory configurations Sockets Mode DIMM_A2 (blue) DIMM_A1 (blue) DIMM_B2 (black) DIMM_B1 (black) — Populated — — Single-channel (1)* Dual-channel (1)* Populated Populated — — (2)* Populated Populated Populated Populated * Use only identical DIMM pairs. Visit the ASUS website (www.asus.com) for the latest DDR 400 Qualified Vendors List for this motherboard.
1.7.3 Installing a DIMM 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. 2 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. DDR DIMM notch 1 1 A DDR DIMM is keyed with a notch so that it fits in only one direction.
1.8 Expansion slots In the future, you may need to install expansion cards. The following sub-sections describe the slots and the expansion cards that they support. Make sure to unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury and damage motherboard components. 1.8.1 Installing an expansion card To install an expansion card: 1.
Standard interrupt assignments IRQ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Priority Standard Function 1 2 – 11 12 13 14 15 3 4 5 6 7 8 9 10 System Timer Keyboard Controller Re-direct to IRQ#9 IRQ holder for PCI steering* Communications Port (COM1)* IRQ holder for PCI steering* Floppy Disk Controller Printer Port (LPT1)* System CMOS/Real Time Clock IRQ holder for PCI steering* IRQ holder for PCI steering* IRQ holder for PCI steering* PS/2 Compatible Mouse Port* Numeric Data Processor Primary IDE Channel Se
1.8.3 PCI slots The PCI slots support cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI specifications. The figure shows a LAN card installed on a PCI slot. 1.8.4 PCI Express x1 slot This motherboard supports PCI Express x1 network cards, SCSI cards and other cards that comply with the PCI Express specifications. The following figure shows a network card installed on the PCI Express x1 slot. 1.8.
1.9 1. Jumpers 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 onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords. To erase the RTC RAM: 1. Turn OFF the computer and unplug the power cord. 2. Remove the onboard battery. 3.
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. The USBPW12 and USBPW34 jumpers are for the rear USB ports. The USBPW56 and USBPW78 jumper is for the internal USB connectors that you can connect to additional USB ports.
3. Keyboard power (3-pin KBPWR) This jumper allows you to enable or disable the keyboard wake-up feature. Set this jumper to pins 2-3 (+5VSB) to wake up the computer when you press a key on the keyboard (the default is the Space Bar). This feature requires an ATX power supply that can supply at least 500 mA on the +5VSB lead, and a corresponding setting in the BIOS.
1.10 Connectors 1.10.1 Rear panel connectors 1 2 3 4 5 6 10 1. 2. 3. 4. 5. 6. 8 9 7 P S / 2 m o u s e p o r t ( g r e e n ) . This port is for a PS/2 mouse. P a r a l l e l p o r t . This 25-pin port connects a parallel printer, a scanner, or other devices. L A N ( R J - 4 5 ) p o r t . This port allows Gigabit connection to a Local Area Network (LAN) through a network hub. L i n e I n p o r t ( l i g h t b l u e ) . This port connects a tape, CD, DVD player, or other audio sources.
7. U S B 2 . 0 p o r t s 3 a n d 4 . These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices. 8. U S B 2 . 0 p o r t s 1 a n d 2 . These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices. 9 . V i d e o G r a p h i c s A d a p t e r ( V G A ) p o r t . This 15-pin port is for a VGA monitor or other VGA-compatible devices. 1 0 . P S / 2 k e y b o a r d p o r t ( p u r p l e ) . This port is for a PS/2 keyboard.
1.10.2 Internal connectors 1. Floppy disk drive connector (34-1 pin FLOPPY) This connector is for the provided floppy disk drive (FDD) signal cable. Insert one end of the cable to this connector, then connect the other end to the signal connector at the back of the floppy disk drive. Pin 5 on the connector is removed to prevent incorrect cable connection when using an FDD cable with a covered Pin 5. FLOPPY A8N-VM NOTE: Orient the red markings on the floppy ribbon cable to PIN 1.
3. IDE connectors (40-1 pin PRI_IDE, 40-1 pin SEC_IDE) These connectors are for an Ultra DMA 133/100/66 signal cable. The Ultra DMA 133/100/66 signal cable has three connectors: a blue connector for the primary IDE connector on the motherboard, a black connector for an Ultra DMA 133/100/66 IDE slave device (optical drive/hard disk drive), and a gray connector for an Ultra DMA 133/ 100/66 IDE master device (hard disk drive).
Serial ATA connectors (7-pin SATA1, SATA2) These connectors are for the Serial ATA signal cables for Serial ATA hard disk drives. The current Serial ATA I interface allows up to 150 MB/s data transfer rate while Serial ATA II allows up to 300 MB/s data transfer rate, faster than the standard parallel ATA with 133 MB/s (Ultra DMA/133) A8N-VM GND RSATA_RXN2 RSATA_RXP2 GND RSATA_TXN2 RSATA_TXP2 GND 4.
5. CPU and Chassis fan connectors (3-pin CPU_FAN, 3-pin CHA_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 the black wire of each cable matches the ground pin of the connector. Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard components.
7. USB connectors (10-1 pin USB56, USB78) A8N-VM USB 2.0 connectors 1 USB78 1 USB+5V USB_P7USB_P7+ GND USB56 USB+5V USB_P5USB_P5+ GND ® USB+5V USB_P8USB_P8+ GND NC USB+5V USB_P6USB_P6+ GND NC A8N-VM These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 specification that supports up to 480 Mbps connection speed. The USB 2.
9. Serial port connector (10-1 pin COM1) This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis. A8N-VM The serial port bracket (COM1) is purchased separately. COM1 PIN 1 ® A8N-VM COM port connector 1 0 . Front panel audio connector (10-1 pin AAFP) This connector is for a chassis-mounted front panel audio I/O module that supports either High Definition Audio or AC `97 audio standard.
1 1 . ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) These connectors are for an ATX power supply. The plugs from the power supply are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit. • We recommend that you use an ATX 12 V Specification 2.0-compliant power supply unit (PSU) with a minimum of 300 W power rating. This PSU type has 24-pin and 4-pin power plugs.
1 2 . System panel connector (20-1 pin PANEL) This connector supports several chassis-mounted functions. SPEAKER +5V Ground Ground Speaker PLED- A8N-VM PLED+ PLED ® IDE_LED Reset Ground PWR Ground IDE_LED+ IDE_LED- PANEL RESET PWRSW A8N-VM System panel connector * Requires an ATX power supply. The sytem panel connector is color-coded for easy connection. Refer to the connector description below for details.
This chapter tells how to change the system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided.
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. 2. ASUS floppy ASUS A F U D O S (Updates the BIOS in DOS mode using a bootable disk.) E Z F l a s h (Updates the BIOS using a floppy disk during POST.) 3. A S U S C r a s h F r e e B I O S 2 (Updates the BIOS using a bootable floppy disk or the motherboard support CD when the BIOS file fails or gets corrupted.) 4.
d. From the Open field, type D:\bootdisk\makeboot a: assuming that D: is your optical drive. e. Press , then follow screen instructions to continue. 2. Copy the original or the latest motherboard BIOS file to the bootable floppy disk. 2.1.2 ASUS EZ Flash utility The ASUS EZ Flash feature allows you to update the BIOS without having to go through the long process of booting from a floppy disk and using a DOS-based utility.
2.1.3 AFUDOS utility The AFUDOS utility allows you to update the BIOS file in DOS environment using a bootable floppy disk with the updated BIOS file. This utility also allows you to copy the current BIOS file that you can use as backup when the BIOS fails or gets corrupted during the updating process. Copying the current BIOS To copy the current BIOS file using the AFUDOS utility: • Make sure that the floppy disk is not write-protected and has at least 600 KB free space to save the file.
Updating the BIOS file To update the BIOS file using the AFUDOS utility: 1. Visit the ASUS website (www.asus.com) and download the latest BIOS file for the motherboard. Save the BIOS file to a bootable floppy disk. Write the BIOS filename on a piece of paper. You need to type the exact BIOS filename at the DOS prompt. 2. Copy the AFUDOS utility (afudos.exe) from the motherboard support CD to the bootable floppy disk you created earlier. 3.
2.1.4 ASUS CrashFree BIOS 2 utility The ASUS CrashFree BIOS 2 is an auto recovery tool that allows you to restore the BIOS file when it fails or gets corrupted during the updating process. You can update a corrupted BIOS file using the motherboard support CD or the floppy disk that contains the updated BIOS file. • Prepare the motherboard support CD or the floppy disk containing the updated motherboard BIOS before using this utility.
Recovering the BIOS from the support CD To recover the BIOS from the support CD: 1. Remove any floppy disk from the floppy disk drive, then turn on the system. 2. Insert the support CD to the optical drive. 3. The utility displays the following message and automatically checks the floppy disk for the original or updated BIOS file. Bad BIOS checksum. Starting BIOS recovery... Checking for floppy...
2.1.5 ASUS Update utility The ASUS Update is a utility that allows you to manage, save, and update the motherboard BIOS in Windows® environment. The ASUS Update utility allows you to: • Save the current BIOS file • Download the latest BIOS file from the Internet • Update the BIOS from an updated BIOS file • Update the BIOS directly from the Internet, and • View the BIOS version information. This utility is available in the support CD that comes with the motherboard package.
Updating the BIOS through the Internet To update the BIOS through the Internet: 1. Launch the ASUS Update utility from the Windows® desktop by clicking Start > Programs > ASUS > ASUSUpdate > ASUSUpdate e. The ASUS Update main window appears. 2. Select U p d a t e B I O S f r o m t h e I n t e r n e t option from the drop-down menu, then click N e x tt. ASUS A8N-VM 3. Select the ASUS FTP site nearest you to avoid network traffic, or click A u t o S e l e c tt. Click N e x tt.
4. From the FTP site, select the BIOS version that you wish to download. Click Next. 5. Follow the screen instructions to complete the update process. The ASUS Update utility is capable of updating itself through the Internet. Always update the utility to avail all its features. Updating the BIOS through a BIOS file To update the BIOS through a BIOS file: 1. 2.
2.2 BIOS setup program This motherboard supports a programmable firmware 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 can change the configuration of your computer in the future.
2.2.1 BIOS menu screen Menu items Main Menu bar Advanced System Time System Date Legacy Diskette A Primary IDE Master Primary IDE Slave Secondary IDE Master Secondary IDE Slave First SATA Second SATA IDE Configuration Configuration fields Power General help BIOS SETUP UTILITY Boot Exit [10:55:25] [Thu 08/25/2005] [1.44M, 3.5 in] Use [ENTER], [TAB] or [SHIFT-TAB] to select a field.
2.2.4 Menu items Main The highlighted item on the menu bar displays the specific items for that menu. For example, selecting M a i n shows the Main menu items. The other items (Advanced, Power, Boot, and Exit) on the menu bar have their respective menu items. 2.2.5 Advanced BIOS SETUP UTILITY Power Boot Exit System Time [10:55:25] System Date 25/2005] Legacy Diskette A 3.5 in.] [Thu 08/ Use [ENTER], [TAB], or [SHIFT-TAB] to select a field. [1.44M, Use [+] or [-] to configure system time.
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. Main Advanced System Time System Date Legacy Diskette A Primary IDE Master Primary IDE Slave Secondary IDE Master Secondary IDE Slave First SATA Second SATA IDE Configuration Power BIOS SETUP UTILITY Boot Exit [10:55:25] [Thu 08/25/2005] [1.44M, 3.
2.3.4 Primary and Secondary IDE Master/Slave; First and Second SATA While entering Setup, the BIOS automatically detects the presence of IDE devices. There is a separate sub-menu for each IDE device. Select a device item then press to display the IDE device information. BIOS SETUP UTILITY Main Primary IDE Master Device : Hard Disk Vendor : ST320410A Size : 20.
PIO Mode [Auto] Sets the PIO mode. Configuration options: [Auto] [0] [1] [2] [3] [4] DMA Mode [Auto] Sets the DMA mode. Configuration options: [Auto] [SWDMA0] [SWDMA1] [SWDMA2] [MWDMA0] [MWDMA1] [MWDMA2] [UDMA0] [UDMA1] [UDMA2] [UDMA3] [UDMA4] [UDMA5] [UDMA6] SMART Monitoring [Auto] Sets the Smart Monitoring, Analysis, and Reporting Technology monitoring support. Configuration options: [Auto] [Disabled] [Enabled] 32Bit Data Transfer [Enabled] Enables or disables 32-bit data transfer.
2.3.6 System Information This menu gives you an overview of the general system specifications. The BIOS automatically detects the items in this menu. BIOS SETUP UTILITY Main AMIBIOS Version : 0112 Build Date : 09/07/05 Processor Type Speed Count : AMD Athlon(tm) 64 Processor 3200+ : 2020 MHz : 1 System Memory Size : 240 MB F1 F10 ESC Select Screen Select Item General Help Save and Exit Exit v02.58 (C)Copyright 1985-2004, American Megatrends, Inc. AMI BIOS Displays the auto-detected BIOS information.
2.4 Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices. Take caution when changing the settings of the Advanced menu items. Incorrect field values can cause the system to malfunction.
2.4.2 JumperFree Configuration BIOS SETUP UTILITY Advanced AI Overclocking [Auto] Adjust the CPUtarget FSB CPU Select frequency.and the frequency, relevant parameters will be auto-adjusted. Frequencies higher than CPU manufacturer recommends are not guaranteed to be stable. If the system becomes unstable, return to the default. AI Overclocking [Auto] Allows you to select the overclocking options to achieve the desired CPU internal frequency.
2.4.3 CPU Configuration The items in this menu show the CPU-related information that the BIOS automatically detects. BIOS SETUP UTILITY Advanced CPU Configuration Module Version: 14.06 Physical Count: 1 Logical Count: 1 AMD Athlon(tm) 64 Processor 3200+ Revision: D0 Cache L1: 64KB Cache L2: 512KB Speed : 2020MHz Current FSB Multiplier: 10x Maximum FSB Multiplier: 10x Able to Change Freq. : Yes uCode Patch Level : 0x41 This option should remain disabled for the normal operation.
Northbridge Configuration BIOS SETUP UTILITY Advanced Northbridge Chipset Configuration Memory Configuration ECC Configuration NvigpBridge/C51G Configuration +F1 F10 ESC Select Screen Select Item Change Option General Help Save and Exit Exit v02.58 (C)Copyright 1985-2004, American Megatrends, Inc.
Memclock Mode [Auto] [Auto] allows the BIOS to set the memclock mode automatically. [Limit] allows you to select from any of the standard values. Configuration options: [Auto] [Limit] The following item appears when the M e m c l o c k M o d e item is set to [Limit]. Memclock Value [100 MHz] Allows you to set the memclock value. Configuration options: [100 MHz] [133 MHz] [166 MHz] [183 MHz] [200 MHz] MCT Timing Mode [Auto] [Auto] allows the BIOS to set the MCT timing mode automatically.
Software Memory Hole [Disabled] Enables or disables the software memory remapping around the memory hole.
L2 Cache BG Scrub [Disabled] Allows the L2 Data Cache RAM to be corrected while idle. Configuration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns] [1.28us] [2.56us] [5.12us] [10.2us] [20.5 us] [41.0us] [81.9us] [163.8us] [327.7us] [655.4us] [1.31ms] [2.62ms] [5.24ms] [10.49ms] [20.97ms] [42.00ms] [84.00ms] Data Cache BG Scrub [Disabled] Allows the L1 Data Cache RAM to be corrected while idle. Configuration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns] [1.28us] [2.56us] [5.12us] [10.
SouthBridge/MCP51 Chipset Configuration Advanced SouthBridge/MCP51 Chipset Configuration PCI Spread Spectrum HT Spread Spectrum LAN Boot ROM Configuration [Center Spread] [Center Spread] PCI Spread Spectrum [Center Spread] Configuration options: [Disabled] [Center Spread] [Down Spread] HT Spread Spectrum [Center Spread] Configuration options: [Disabled] [Center Spread] [Down Spread] ASUS A8N-VM 2-25
Hyper Transport Configuration BIOS Setup Utility Advanced Hyper Transport C51G Configuration LDT (K8) to C51G (NB) Frequency LDT (K8) to C51G (NB) LinkWidth LDT (K8) to C51G (NB)frequency selection. [Auto] [Auto] Hyper Transport MCP51 Configuration MCP51(SB) to NVIDIA (NB) Frequency [800 MHz] MCP51(SB) to NVIDIA (NB) LinkWidth [8 8 ] +F1 F10 ESC Select Screen Select Item Change Option General Help Save and Exit Exit v02.58 (C)Copyright 1985-2004, American Megatrends, Inc.
2.4.5 Onboard Devices Configuration BIOS SETUP UTILITY Advanced Configure Winbond W83627EHG-A Super IO Chipset Serial Port1 Address Parallel Port Address Parallel Port Mode ECP Mode DMA Channel Parallel Port IRQ Onboard LAN Onboard LAN Boot ROM Onboard AUDIO [3F8/IRQ4] [378] [ECP] [DMA3] [IRQ7] [Enabled] [Disabled] [Enabled] Allows BIOS to select Serial Port1 Base Addresses. Serial Port1 Address [3F8/IRQ4] Allows you to select the Serial Port1 base address.
Onboard AUDIO [Enabled] Allows you to enable or disable the onboard high definition audio controller. Configuration options: [Enabled] [Disabled] 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.
Palette Snooping [Disabled] When set to [Enabled], the palette snooping feature informs the PCI devices that an ISA graphics device is installed in the system so that the latter can function correctly. Configuration options: [Disabled] [Enabled] IRQ-xx assigned to [PCI Device] When set to [PCI Device], the specific IRQ is free for use of PCI/PnP devices. When set to [Reserved], the IRQ is reserved for legacy ISA devices. Configuration options: [PCI Device] [Reserved] 2.4.
2.5 Power menu The Power menu items allow you to change the settings for the Advanced Power Management (APM). Select an item then press to display the configuration options. Main Advanced Power Suspend Mode Repost Video on S3 Resume ACPI 2.0 Support ACPI APIC Support BIOS SETUP UTILITY Boot Exit [Auto] [No] [Enabled] [Enabled] Select the ACPI state used for System Suspend.
2.5.5 APM Configuration BIOS SETUP UTILITY Power Power Button Mode [On/Off] Resume On PME# Resume On Ring Resume On LAN(MAC) Resume On RTC Alarm Resume On PS/2 Keyboard Resume On PS/2 Mouse Restore on AC Power Loss [Disabled] [Disabled] [Disabled] [Disabled] [Disabled] [Disabled] [Last State] Go into On/Off or Suspend when Power button is pressed. +F1 F10 ESC Select Screen Select Item Change Option General Help Save and Exit Exit v02.58 (C)Copyright 1985-2004, American Megatrends, Inc.
Power On By PS/2 Keyboard [Disabled] When set to [Enabled], this parameter allows you to use the PS/2 keyboard to turn on 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 PS/2 Mouse [Disabled] When set to [Enabled], this parameter allows you to use the PS/2 mouse to turn on the system. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead.
CPU Fan Speed [xxxxRPM] or [Ignored] / [N/A] The onboard hardware monitor automatically detects and displays the CPU fan speed in rotations per minute (RPM). If the fan is not connected to the motherboard, the field shows N/A. CPU Q-Fan Control [Disabled] Allows you to enable or disable the ASUS Q-Fan feature that smartly adjusts the fan speeds for more efficient system operation.
2.6 Boot menu The Boot menu items allow you to change the system boot options. Select an item then press to display the sub-menu. Main Advanced Power BIOS SETUP UTILITY Boot Exit Specifies the Boot Device Boot Priority sequence. Boot Settings Boot Device Priority A virtual floppy disk drive (Floppy Drive B:) may appear when you set the CD-ROM drive as the first boot device.
2.6.2 Boot Settings Configuration BIOS SETUP UTILITY Boot Boot Settings Configuration Quick Boot Full Screen Logo AddOn ROM Display Mode Bootup Num-Lock PS/2 Mouse Support Wait for ‘F1’ if Error Hit ‘DEL’ Message Display Interrupt 19 Capture [Enabled] [Enabled] [Force BIOS] [On] [Auto] [Enabled] [Enabled] [Disabled] Allows BIOS to skip certain tests while booting. This will decrease the time needed to boot the system.
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] 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 to display the configuration options.
To clear the supervisor password, select the Change Supervisor Password then press . The message “Password Uninstalled” appears. If you forget your BIOS password, you can 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.
To set a User Password: 1. Select the Change User Password item and press . 2. On the password box that appears, type a password composed of at least six letters and/or numbers, then press . 3. Confirm the password when prompted. The message “Password Installed” appears after you set your password successfully. To change the user password, follow the same steps as in setting a user password. Clear User Password Select this item to clear the user password.
Exit & Save Changes Once you are finished making your selections, choose this option from the Exit menu to ensure the values you selected are saved to the CMOS RAM. An onboard backup battery sustains the CMOS RAM so it stays on even when the PC is turned off. When you select this option, a confirmation window appears. Select [ O k ] to save changes and exit.
2-40 Chapter 2: BIOS setup
This chapter describes the contents of the support CD that comes with the motherboard package.
3.1 Installing an operating system This motherboard supports Windows® 2000/XP operating systems (OS). Always install the latest OS version and corresponding updates to maximize the features of your hardware. 3.2 • Motherboard settings and hardware options vary. Use the setup procedures presented in this chapter for reference only. Refer to your OS documentation for detailed information.
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. NVIDIA nForce Chipset Driver Installs the NVIDIA® nForce™ Chipset Driver program. NVIDIA GeForce 61X0 GPU Driver Installs the NVIDIA® GeForce™ 61X0 graphics processing unit driver. SoundMAX® AD1986A Audio Driver Executes the wizard to install the SoundMAX™ AD1986A audio driver and application.
3.2.3 Utilities menu The Utilities menu shows the applications and other software that the motherboard supports. ASUS PC Probe II This smart utility monitors the fan speed, CPU temperature, and system voltages, and alerts you of any detected problems. This utility helps you keep your computer in healthy operating condition. ASUS Update The ASUS Update utility allows you to update the motherboard BIOS in a Windows® environment.
Microsoft® Windows® XP Service Pack 2 already includes Microsoft® DirectX® 9.0c. If your system is Microsoft® Windows® XP Service Pack 2-embedded, skip Microsoft® DirectX® 9.0c installation. Anti-virus utility The anti-virus utility scans, identifies, and removes computer viruses. View the online help for detailed information. The screen display and utilities option may not be the same for different operating system versions. 3.2.4 Make Disk menu The Make Disk menu allows you to make a RAID driver disk.
3.2.5 Manual menu The Manual menu contains a list of supplementary user manuals. Click an item to open the folder of the user manual. Most user manual files are in Portable Document Format (PDF). Install the Adobe® Acrobat® Reader from the U t i l i t i e s m e n u before opening a user manual file. NVIDIA RAID User’s Manual Allows you to open the NVIDIA® RAID user’s manual.
3.2.6 ASUS Contact information Click the C o n t a c t tab to display the ASUS contact information. You can also find this information on the inside front cover of this user guide. 3.2.7 Other information The icons on the top right corner of the screen give additional information on the motherboard and the contents of the support CD. Click an icon to display the specified information. Motherboard Info Displays the general specifications of the motherboard.
Browse this CD Displays the support CD contents in graphical format. Technical support Form Displays the ASUS Technical Support Request Form that you have to fill out when requesting technical support. Filelist Displays the contents of the support CD and a brief description of each in text format.
