Asus A7V266 MX User Manual

A7V266-MX  
User Guide  
Contents  
Contents .....................................................................................................iii  
Notices ........................................................................................................ v  
Safety information ...................................................................................... vi  
A7V266-MX specification summary ...........................................................vii  
Chapter 1: Product introduction  
1.1 Welcome! ....................................................................................... 1-2  
1.2 Package contents .......................................................................... 1-2  
1.3 Special features ............................................................................. 1-2  
1.4 Motherboard components.............................................................. 1-4  
1.5 Motherboard layout........................................................................ 1-7  
1.6 Motherboard installation ................................................................ 1-8  
1.6.1  
1.6.2  
Placement direction ......................................................... 1-8  
Screw holes ..................................................................... 1-8  
1.7 Before you proceed ....................................................................... 1-9  
1.8 Central Processing Unit (CPU) .................................................... 1-10  
Installing the CPU ........................................................................ 1-10  
1.9 System memory ........................................................................... 1-11  
Installing a DIMM ......................................................................... 1-11  
1.10 Expansion slots ........................................................................... 1-12  
1.10.1 Configuring an expansion card ...................................... 1-12  
1.10.2 AGP slot ......................................................................... 1-13  
1.10.3 PCI slots ........................................................................ 1-13  
1.11 Switch and jumpers ..................................................................... 1-14  
1.12 Connectors .................................................................................. 1-17  
Chapter 2: BIOS information  
2.1 Managing and updating your BIOS ............................................... 2-2  
2.1.1  
2.1.2  
2.1.3  
Creating a bootable floppy disk ....................................... 2-2  
Updating BIOS using the AwardBIOS Flash Utility .......... 2-3  
CrashFree BIOS feature .................................................. 2-4  
2.2 BIOS beep codes .......................................................................... 2-5  
2.3 BIOS Setup program ..................................................................... 2-5  
2.3.1  
2.3.2  
BIOS menu bar ................................................................ 2-6  
Legend bar....................................................................... 2-6  
2.4 Main Menu ..................................................................................... 2-8  
2.4.1  
IDE Primary Master/Slave  
IDE Secondary Master/Slave......................................... 2-10  
iii  
Contents  
2.5 Advanced Menu ........................................................................... 2-12  
2.5.1  
2.5.2  
2.5.3  
2.5.4  
Chip Configuration ......................................................... 2-13  
I/O Device Configuration................................................ 2-18  
PCI Configuration .......................................................... 2-20  
Frequency/Voltage Control ............................................ 2-22  
2.6 Power Menu ................................................................................ 2-23  
2.6.1  
2.6.2  
Power Up Control .......................................................... 2-25  
Hardware Monitor .......................................................... 2-26  
2.7 Boot Menu ................................................................................... 2-27  
2.8 Exit Menu ..................................................................................... 2-28  
Chapter 3: Software support  
3.1 Installing an operating system ....................................................... 3-2  
3.2 Support CD information ................................................................. 3-2  
3.2.1  
3.2.2  
3.2.3  
3.2.4  
Running the support CD .................................................. 3-2  
Drivers menu ................................................................... 3-3  
Utilities menu ................................................................... 3-4  
ASUS contact information................................................ 3-5  
iv  
Notices  
Federal Communications Commission Statement  
This device complies with FCC Rules Part 15. Operation is subject to the  
following two conditions:  
• This device may not cause harmful interference, and  
• This device must accept any interference received including interference  
that may cause undesired operation.  
This equipment has been tested and found to comply with the limits for a  
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits  
are designed to provide reasonable protection against harmful interference  
in a residential installation. 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 interference by one or more of the following measures:  
• Reorient or relocate the receiving antenna.  
• Increase the separation between the equipment and receiver.  
• Connect the equipment to an outlet on a circuit different from that to  
which the receiver is connected.  
• Consult the dealer or an experienced radio/TV technician for help.  
The use of shielded cables for connection of the monitor to the graphics card is  
required to assure compliance with FCC regulations. Changes or modifications  
to this unit not expressly approved by the party responsible for compliance  
could void the user’s authority to operate this equipment.  
Canadian Department of Communications Statement  
This digital apparatus does not exceed the Class B limits for radio noise  
emissions from digital apparatus set out in the Radio Interference  
Regulations of the Canadian Department of Communications.  
This class B digital apparatus complies with Canadian ICES-003.  
v
Safety information  
Electrical safety  
To prevent electrical shock hazard, disconnect the power cable from the  
electrical outlet before relocating the system.  
When adding or removing devices to or from the system, ensure that the  
power cables for the devices are unplugged before the signal cables are  
connected. If possible, disconnect all power cables from the existing  
system before you add a device.  
Before connecting or removing signal cables from the motherboard,  
ensure that all power cables are unplugged.  
Seek professional assistance before using an adpater or extension cord.  
These devices could interrupt the grounding circuit.  
Make sure that your power supply is set to the correct voltage in your  
area. If you are not sure about the voltage of the electrical outlet you are  
using, contact your local power company.  
If the power supply is broken, do not try to fix it by yourself. Contact a  
qualified service technician or your retailer.  
Operation safety  
Before installing the motherboard and adding devices on it, carefully read  
all the manuals that came with the package.  
Before using the product, make sure all cables are correctly connected  
and the power cables are not damaged. If you detect any damage,  
contact your dealer immediately.  
To avoid short circuits, keep paper clips, screws, and staples away from  
connectors, slots, sockets and circuitry.  
Avoid dust, humidity, and temperature extremes. Do not place the  
product in any area where it may become wet.  
Place the product on a stable surface.  
If you encounter technical problems with the product, contact a qualified  
service technician or your retailer.  
vi  
A7V266-MX specification summary  
CPU  
Socket A for AMD AthlonXP/Athlon/Duron processors  
Chipset  
VIA KM266  
VIA VT8235 CE  
Front Side Bus (FSB)  
Memory  
266/200 MHz  
2 x 184-pin DDR DIMM sockets support up to maximum 2GB  
unbuffered PC2100/1600 non-ECC DDR SDRAM memory.  
Expansion slots  
3 x PCI  
1 x AGP 4X (1.5V only)  
IDE  
2 x UltraDMA133/100/66  
Graphics  
Audio  
Integrated VIA UniChromeGraphics  
AD1980 6-channel AUDIO CODEC  
S/PDIF out interface  
LAN  
VIA VT6103 10/100 Mbps Ethernet PHY  
Hardware monitoring  
Super I/O integrated monitoring of CPU/chassis fan and  
MB/CPU temperature  
Rear panel I/O ports  
Internal connectors  
BIOS features  
1 x Parallel  
1 x Serial (COM1)  
1 x PS/2 keyboard  
1 x PS/2 mouse  
1 x RJ45  
1 x Audio I/O  
1 x VGA  
4 x USB 2.0  
1 x USB connector supports additional 2 USB 2.0 ports  
CPU/chassis FAN connectors  
Chassis intrusion connector  
20-pin ATX power connector  
CD / AUX connectors  
S/PDIF out connector  
GAME/MIDI connector  
Front panel audio connector  
2Mb Flash ROM, Award BIOS, ACPI, DMI2.0, WfM 2.0,  
SMBIOS 2.3, PnP features, TCAV, ASUS EZ Flash,  
CrashFree BIOS, ASUS C.O.P. (CPU Overheating  
Protection)  
(continued next page)  
vii  
A7V266-MX specification summary  
Industry standard  
Manageability  
PCI 2.2, USB 2.0  
WfM 2.0, DMI 2.0, WOL/WOR by PME, chassis intrusion  
Support CD contents  
Device drivers  
ASUS PC Probe  
ASUS Update  
ASUS Screensaver  
Award BIOS Flash Utility  
Microsoft® Direct X  
Adobe Acrobat Reader  
Trend MicroPC-cillin 2002  
Accessories  
Form factor  
User Guide  
ASUS A7V266-MX support CD  
UltraATA cable  
FDD cable  
I/O shield  
Micro-ATX form factor: 9.6 in x 9.6 in  
* Specifications are subject to change without notice.  
About this guide  
Conventions used in this guide  
To make sure that you perform certain tasks properly, take note of the following  
symbols used throughout this guide.  
WARNING: Information to prevent injury to yourself when trying  
to complete a task.  
CAUTION: Information to prevent damage to the components  
when trying to complete a task.  
IMPORTANT: Information that you MUST follow to complete a  
task.  
NOTE: Tips and additional information to aid in completing a task.  
viii  
Chapter 1  
This chapter describes the features of  
this motherboard. It includes brief  
descriptions of the motherboard  
components, and illustrations of the  
layout, jumper settings, and connectors.  
Product introduction  
1.1 Welcome!  
Thank you for buying the ASUS® A7V266-MX motherboard!  
The ASUS A7V266-MX motherboard is loaded with the most advanced  
technologies to deliver maximum performance for Socket A processors. This  
motherboard is packed with value-added features for guaranteed consumer  
satisfaction. The following sections provide important technical information about  
the motherboard for future upgrades or system reconfiguration.  
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 ASUS A7V266-MX package for the following items.  
ASUS A7V266-MX motherboard. (Micro-ATX form factor: 9.6 in x 9.6 in)  
ASUS A7V266-MX support CD  
40-pin 80-conductor ribbon cable for UltraDMA133 IDE drives  
Ribbon cable for a 3.5-inch floppy drive  
Bag of extra jumper caps  
I/O shield  
User Guide  
1.3 Special features  
266MHz FSB support for AthlonXP/Athlon/Duron™  
processors  
The A7V266-MX motherboard supports 266MHz front side bus frequency for  
AthlonXP/ Athlon/Duronprocessors allowing increased application program  
productivity and enhanced digital media experience. See page 1-10 for details.  
Integrated graphics  
The A7V266-MX motherboard is loaded with an integrated VIA Unichrome™  
2D/3D graphics core allowing efficient execution of multimedia applications and  
playback support for video and DVD.  
1-2  
Chapter 1: Product introduction  
SoundMAX Digital Audio System  
The SoundMax Digital Audio System is the industrys highest performance and  
most reliable audio solution for business professionals, audiophiles, musicians,  
and gamers. SoundMAX Digital Audio System can output 5.1 channel surround  
and features state-of-the-art DLS2 MIDI synthesizer with Yamaha DLSbyXG sound  
set, 5.1 Virtual Theaterand supports all major game audio technologies  
including Microsoft DirectX8.0, Microsoft DirectSound 3D, A3D, MacroFX,  
ZoomFX, MultiDrive 5.1 and EAX.  
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 to a fast 480 Mbps on USB 2.0. USB 2.0 is backward compatible with USB 1.1.  
ASUS C.O.P.  
The ASUS C.O.P. (CPU Overheating Protection) is a hardware protection circuit  
that automatically shuts down the system power before temperatures go high  
enough to permanently damage the CPU.  
ASUS CrashFree BIOS  
CrashFree BIOS allows users to restore BIOS data from a floppy disk even when  
BIOS code and data are corrupted. Users can now enjoy this feature without the  
need to buy a new ROM.  
Digital audio support  
A Sony/Philips Digital Interface (S/PDIF) connector is onboard to give you  
convenient connectivity to external home theater audio systems. The S/PDIF  
technology allows direct digital audio transfers keeping the best signal quality.  
NOTE: The S/PDIF module is purchased separately.  
Integrated 10/100 LAN  
The A7V266-MX motherboard is equipped with an onboard 10/100Mbps Fast  
Ethernet controller to give you a fast and reliable connection to Local Area  
Networks (LANs) and the Internet.  
ASUS A7V266-MX motherboard user guide  
1-3  
1.4 Motherboard components  
Before you install the motherboard, learn about its major components and  
available features to facilitate the installation and future upgrades. Refer to the  
succeeding pages for the component descriptions.  
1 2  
3
4
5
6
7
8
9
14  
13  
10  
12 11  
15  
16  
17  
18  
19  
20  
25  
24  
23  
21  
22  
1-4  
Chapter 1: Product introduction  
CPU socket. Socket 462 (Socket A) Zero Insertion Force (ZIF) socket for  
AMD Athlon XP/Athlon/Duronprocessor.  
1
2
Northbridge. The VIA KM266 Northbridge controller chipset supports a  
64-bit DDR memory controller and up to 2GB of 266/200MHz DDR  
memory. It also supports AGP 4X technology. VIA KM266 is also loaded  
with the VIA UniChrome2D/3D graphics core for efficient multimedia  
applications including DVD and video playback support.  
DDR DIMM sockets. Equipped with two Double Data Rate Dual Inline  
Memory Module (DDR DIMM) sockets to support up to 2GB of DDR  
SDRAM, the newest memory standard with the highest bandwidth and  
lowest latency currently available. This memory technology supplies allows  
data transfer rates of up to 2.1GB/s on 266MHz DDR SDRAM.  
3
4
ATX power connector. This standard 20-pin connector connects to an  
ATX 12V power supply. The power supply must have at least 1A on the  
+5V standby lead (+5VSB).  
DIP switches. This 5-pin Dual Inline Package (DIP) switches allows you to  
select the CPU frequency multiple.  
5
6
Floppy disk drive connector. This connector connects the provided  
ribbon cable for the floppy disk drive. One side of the connector is slotted  
to prevent incorrect insertion of the floppy disk cable.  
IDE connectors. These dual-channel bus master IDE connectors support  
up to four UltraDMA133/100/66, PIO Modes 0-4 IDE devices. Both the  
primary (blue) and secondary (black) connectors are slotted to prevent  
incorrect insertion of the IDE ribbon cable.  
7
8
AGP slot. The Accelerated Graphics Port (AGP) slot only supports 1.5V  
AGP 4X mode graphics cards for 3D graphical applications.  
9
Flash ROM. This 2Mb ISA chip contains the programmable BIOS program.  
Super I/O chip. Winbond 83697HF I/O controller offers support for a  
variety of I/O functions. Provides two high-speed UART compatible serial  
ports and one parallel port with EPP and ECP capabilities. The Super I/O  
controller supports a floppy disk drive, Game/MIDI port, PS/2 keyboard,  
and PS/2 mouse.  
10  
Onboard LED. This onboard LED lights up if there is a standby power on  
the motherboard. This LED acts as a reminder to turn off the system power  
before plugging or unplugging devices.  
11  
ASUS A7V266-MX motherboard user guide  
1-5  
Southbridge. The VIA VT8235 CE Southbridge controller communicates  
with the north bridge at rates of up to 533MB/s using the VIA 8X VLink  
Technology. The Southbridge controller provides efficient bandwith  
requirements for PCI, USB and support for LAN devices. The controller  
also supports standard UltraDMA133/100/66 and provides separate data  
paths for each IDE channel for up to two IDE devices. The controller  
supports six USB ports, one LAN port and is PCI 2.2 compliant.  
12  
Audio CODEC. The ADI AD1980 6-channel Audio CODEC is AC97  
compliant and is designed for PC multimedia systems.  
13  
14  
PCI slots. These 32-bit PCI 2.2 expansion slots support bus master PCI  
cards like SCSI and LAN cards with 133MB/s maximum output.  
15  
16  
PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse.  
Parallel port. This 25-pin port connects a parallel printer, a scanner, or  
other devices.  
RJ-45 port. Using the South bridge integrated MAC and the VIA VT6103  
LAN PHY Fast Ethernet controller, this port allows connection to a Local  
Area Network (LAN) through a network hub.  
17  
Line In jack. This Line In (light blue) jack connects a tape player or other  
audio sources. In a 6-channel mode, this jack functions as Bass/Center.  
18  
19  
20  
21  
22  
Line Out jack. This Line Out (lime) jack connects a headphone or a  
speaker. In a 6-channel mode, this jack functions as Front Speaker Out.  
Microphone jack. This Mic (pink) jack connects a microphone. In a  
6-channel mode, this jack functions as Rear Speaker Out.  
USB 1 & 2 ports. These two 4-pin Universal Serial Bus 2.0/1.1 ports are  
available for connecting USB devices such as mouse and PDA.  
USB 3 & 4 ports. These two 4-pin Universal Serial Bus 2.0/1.1 ports are  
available for connecting USB devices such as mouse and PDA.  
23  
24  
VGA port. This 15-pin VGA port connects to a VGA monitor.  
Serial port (COM1). This port connects to your serial mouse and other  
serial devices.  
PS/2 keyboard port. This purple 6-pin connector is for a PS/2 keyboard.  
25  
1-6  
Chapter 1: Product introduction  
1.5 Motherboard layout  
24.5cm (9.6in)  
PS/2KBMS  
T: Mouse  
B: Keyboard  
Socket 462  
CPU_FAN  
COM1  
DSW  
VGA1  
USB1  
USB2  
VIA  
KM266  
USB2.0  
Top:  
T: USB3  
RJ-45  
B: USB4  
Top:Line In  
Center:Line Out  
Below:Mic In  
Accelerated Graphics Port (AGP1)  
®
VIA  
VT6103  
PCI1  
VIA  
A7V266-MX  
PCI2  
VT8235CE  
CHA_FAN1  
CR2032 3V  
Lithium Cell  
CMOS Power  
Super  
I/O  
SPDIF  
AD1980  
CODEC  
PCI3  
CLRTC  
USBPWR56  
CHASSIS  
USB56  
FP_AUDIO  
AUX1 CD1  
GAME  
PANEL  
SB_PWR  
ASUS A7V266-MX motherboard user guide  
1-7  
1.6 Motherboard installation  
The A7V266-MX uses the Micro ATX form factor, measuring 24.5 cm (9.6 in.) x  
24.5 cm (9.6 in.) - a standard fit for most large chassis.  
Unplug the power cord before installing the motherboard. Failure to do so may  
cause you physical injury and damage Motherboard components.  
1.6.1 Placement direction  
Orient the motherboard with the chassis before installation. The edge with external  
ports goes to the rear part of the chassis. Refer to the image below. It may be  
more convenient to install major cables, the CPU and modular components before  
fixing the motherboard inside the case frame.  
1.6.2 Screw holes  
Place eight (8) screws into the holes indicated by circles to secure the  
motherboard to the chassis.  
Do not overtighten the screws! Doing so may damage the motherboard.  
Place this side  
towards the rear of  
the chassis  
1-8  
Chapter 1: Product introduction  
1.7 Before you proceed  
Take note of the following precautions before you install motherboard components  
or change any motherboard settings.  
1. Unplug the power cord from the wall socket before touching any  
component.  
2. Use a grounded wrist strap or touch a safely grounded object or to a metal  
object, such as the power supply case, before handling components to  
avoid damaging them due to static electricity.  
3. Avoid touching the ICs on components.  
4. Whenever you uninstall any component, place it on a grounded antistatic  
pad or in the bag that came with the component.  
5. Before you install or remove any component, ensure that the ATX  
power supply is switched off or the power cord is detached from the  
power supply. Failure to do so may cause severe damage to the  
motherboard, peripherals, and/or components.  
When lit, the onboard LED indicates that the system is ON, in sleep mode or in  
soft-off mode, not powered OFF. See the illustration below.  
SB_PWR  
®
A7V266-MX  
ON  
OFF  
Standby  
Power  
Powered  
Off  
A7V266-MX Onboard LED  
ASUS A7V266-MX motherboard user guide  
1-9  
1.8 Central Processing Unit (CPU)  
The motherboard provides a Socket A (462) for CPU installation. The A7V266-MX  
supports AthlonXP processors with QuantiSpeeddata processing, large data  
caches, 3D enhancements and 266/200MHz bus speeds. AMD AthlonXP  
processors offer gigahertz speeds to support all the latest computing platforms and  
applications  
CPU NOTCH  
TO INNER  
CORNER  
LOCK  
LEVER  
®
CPU NOTCH  
A7V266-MX  
AMDCPU  
A7V266-MX Socket 462  
Each AMD CPU has a markedcorner. This corner is usually indicated with a notch,  
and/or a golden square or triangle. Refer to this indicator while orienting the CPU.  
A fan and heatsink should be attached to the CPU to prevent overheating.  
Installing the CPU  
Follow these steps to install a CPU:  
1. Locate the Socket 462 and open it by  
pulling the lever gently sideways away  
from the socket. Then lift the lever  
upwards. The socket lever must be  
fully opened (90 to 100 degrees).  
2. Insert the CPU with the correct  
orientation. The notched or golden  
corner of the CPU must be oriented  
toward the inner corner of the socket  
base nearest to the lever hinge.  
The CPU should drop easily into place. Do not force the CPU into the socket  
to avoid bending the pins. If the CPU does not fit, check its alignment and look  
for bent pins.  
1-10  
Chapter 1: Product introduction  
1.9 System memory  
The motherboard has two Double Data Rate (DDR) DIMM sockets that supports  
up to 2GB non-ECC PC2100/1600 DDR SDRAM DIMMs. Each DIMM socket is  
two-sided. DIMMs come in combinations of single or double-sided types ranging  
through 64MB, 128MB, 256MB, 512MB and 1 GB.  
®
A7V266-MX  
A7V266-MX 184-Pin DDR DIMM Sockets  
DDR DIMM notch  
Installing a DIMM  
1. Unlock a DIMM socket by pressing  
the retaining clips outward.  
2. Align a DIMM on the socket. Make  
sure the notches on the DIMM  
exactly match the notches in the  
socket.  
Unlocked Retaining Clip  
3. Firmly insert the DIMM into the  
socket until the retaining clips lock  
into place.  
A DDR DIMM is keyed with a notch so that it fits in only one direction. DO NOT  
force a DIMM into a socket to avoid damaging the DIMM.  
ASUS A7V266-MX motherboard user guide  
1-11  
1.10 Expansion slots  
The A7V266-MX motherboard has three (3) PCI and one (1) Accelerated Graphics  
Port (AGP). The following sub-sections describe the slots and the expansion cards  
that they support.  
1.10.1 Configuring an expansion card  
Some expansion cards need an IRQ to operate. Generally, an IRQ must be  
exclusively assigned to one function at a time. In a standard design configuration,  
16 IRQs are available but most are already in use.  
Normally, 6 IRQs are free for expansion cards. Sometimes IRQs are sharedby  
more than one function; in this case, IRQ assignments are swapped automatically  
or adjusted through the BIOS firmware.  
Standard Interrupt Assignments  
IRQ  
Standard Function  
System Timer  
0
1
Keyboard Controller  
2
Programmable Interrupt Controller  
USB Universal Host Controller  
Communications Port (COM1)  
Onboard Audio  
3*  
4*  
5*  
6
Standard Floppy Disk Controller  
Printer Port (LPT1)  
7*  
8
System CMOS/Real Time Clock  
Onboard LAN  
9*  
10*  
11*  
12*  
13  
14*  
15*  
USB Universal Host Controller  
Onboard VGA  
PS/2 Compatible Mouse Port  
Numeric Data Processor  
Ultra ATA Controller  
Secondary Ultra ATA Controller  
* These IRQs are usually available for ISA or PCI devices.  
IRQ assignments for this motherboard  
A
B
C
D
PCI slot 1  
PCI slot 2  
PCI slot 3  
AGP slot  
shared  
shared  
shared  
shared  
1-12  
Chapter 1: Product introduction  
1.10.2 AGP slot  
This motherboard has an Accelerated Graphics Port (AGP) slot that supports  
+1.5V AGP 4X cards. Note the notches on the card golden fingers to ensure that  
they fit the AGP slot on your motherboard.  
®
A7V266-MX  
Keyed for 1.5v  
A7V266-MX Accelerated Graphics Port (AGP)  
1.10.3 PCI slots  
Three 32-bit PCI slots are available on this motherboard. The slots support PCI  
cards such as LAN card, SCSI card, USB card, and other cards that comply with  
PCI specifications. This figure shows a typical PCI card installed into a slot:  
ASUS A7V266-MX motherboard user guide  
1-13  
1.11 Switch and jumpers  
The motherboard frequency is adjusted through the DIP switches. The white block  
represents the switch position. The illustration below shows the ON and OFF  
positions of the switches.  
DSW  
ON  
ON  
OFF  
1 2 3 4 5  
1.Frequency Selection  
®
2.Frequency Selection  
3.Frequency Selection  
4.Frequency Selection  
5.Frequency Selection  
A7V266-MX  
A7V266-MX DIP Switches  
The option to set the CPU core bus frequency multiple is available only on  
unlocked CPUs. If you are using a locked CPU, setting the switches does not  
produce any effect.  
1. CPU external frequency selection (SW1 Switches 1-5)  
This option tells the clock generator what frequency to send the CPU. This  
allows the selection of the CPUs external frequency (or Bus Clock). The BUS  
Clock multiplied by the Frequency Multiple equals the CPUs internal frequency  
(the advertised CPU speed).  
DSW  
ON  
ON  
1
2
3
4
5
1
2
3
4
5
CPU  
AGP 66.67MHz  
PCI 33.33MHz  
100MHz  
133.33MHz  
66.67MHz  
33.33MHz  
®
A7V266-MX  
(Default)  
A7V266-MX CPU  
External Frequency Selection  
The default CPU external frequency is 100MHz. If your CPU supports 133MHz  
external frequency, adjust the DSW settings before installing the motherboard.  
Set the CPU frequency only to the recommended settings. Frequencies other  
than the recommended CPU bus frequencies are not guaranteed to be stable.  
1-14  
Chapter 1: Product introduction  
2. USB device wake-up (3-pin USBPWR12, USBPWR34, USBPWR56)  
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 sleep mode (no  
power to CPU, DRAM in slow refresh, power supply in reduced power mode).  
Both jumpers are set to pins 1-2 (+5V) by default because not all computers  
have the appropriate power supply to support this feature.  
The USBPWR12 and USBPWR34 jumpers are for rear USB ports.  
USBPWR56 is for the internal USB header that you can connect to front USB  
ports.  
The USB device wake-up feature requires a power supply that can provide  
500mA on the +5VSB lead for each USB port. Otherwise, the system does not  
power up.  
The total current consumed must NOT exceed the power supply capability  
(+5VSB) whether under normal condition or in sleep mode.  
USBPWR12  
USBPWR34  
3
2
1
2
+5V  
+5VSB  
(Default)  
®
USBPWR56  
A7V266-MX  
1 2  
2 3  
+5V  
+5VSB  
(Default)  
A7V266-MX USB Device Wake Up  
ASUS A7V266-MX motherboard user guide  
1-15  
3. Clear RTC RAM (CLRTC)  
This jumper clears the Real Time Clock (RTC) RAM of date, time and system  
setup parameters in CMOS. The RAM data in CMOS is powered by the  
onboard button cell battery.  
To erase the RTC RAM:  
1. Turn OFF the computer and unplug the power cord.  
2. Remove the battery.  
3. Move the jumper caps from [2-3] to [1-2] momentarily. Replace the jumper  
cap to the original position, [2-3].  
4. Re-install the battery.  
5. Plug the power cord and turn ON the computer.  
6. Hold down the <Del> key during the boot process and enter BIOS setup to  
re-enter data.  
®
CLRTC  
A7V266-MX  
1 2  
2 3  
Clear CMOS  
Normal  
(Default)  
A7V266-MX Clear RTC RAM  
1-16  
Chapter 1: Product introduction  
1.12 Connectors  
This section describes and illustrates the connectors on the motherboard.  
1. IDE connectors (40-1 pin PRI_IDE, SEC_IDE)  
This connector supports the provided UltraDMA IDE hard disk ribbon cable.  
Connect the cables blue connector to the primary (recommended) or  
secondary IDE connector, then connect the gray connector to the  
UltraDMA133 slave device (hard disk drive) and the black connector to the  
UltraDMA133 master device.  
Pin 20 on each IDE connector is removed to match the covered hole on the  
UltraDMA cable connector. This prevents incorrect orientation when you  
connect the cables.  
For UltraDMA133 IDE devices, use 40-pin 80-conductor cable.  
NOTE: Orient the red markings  
(usually zigzag) on the IDE  
ribbon cable to PIN 1.  
®
A7V266-MX  
PIN 1  
A7V266-MX IDE Connectors  
2. Floppy disk drive connector (34-1 pin FLOPPY1)  
This connector supports the provided floppy drive ribbon cable. After  
connecting one end to the motherboard, connect the other end to the floppy  
drive. (Pin 5 is removed to prevent incorrect insertion when using ribbon cables  
with pin 5 plug.)  
FLOPPY  
NOTE: Orient the red markings on  
the floppy ribbon cable to PIN 1.  
®
A7V266-MX  
PIN 1  
A7V266-MX Floppy Disk Drive Connector  
ASUS A7V266-MX motherboard user guide  
1-17  
3. Digital Audio Connector (6-1 pin SPDIF)  
This connector is for optional S/PDIF audio module that allows digital instead  
of analog sound input and output.  
SPDIF  
®
A7V266-MX  
A7V266-MX Digital Audio Connector  
When you input sound for S/PDIF IN, the LINE_OUT will output the sound.  
Mute LINE_OUT to impede sound output from S/PDIF IN. The S/PDIF module  
is not included in this motherboard package.  
4. ATX power connectors (20-pin ATXPWR)  
These connectors connect to an ATX 12V 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.  
ATXPWR  
+12.0VDC  
+5VSB  
PWR_OK  
COM  
+5.0VDC  
+5.0VDC  
-5.0VDC  
COM  
+5.0VDC  
COM  
COM  
COM  
®
+5.0VDC  
COM  
PS_ON#  
COM  
A7V266-MX  
+3.3VDC  
+3.3VDC  
-12.0VDC  
+3.3VDC  
A7V266-MX ATX Power Connector  
If you will need to replace the power supply in the future, make sure that your  
new ATX 12V power supply can provide 8A on the +12V lead and at least 1A on  
the +5-volt standby lead (+5VSB). The minimum recommended wattage is  
230W, or 300W for a fully configured system. The system may become unstable  
and may experience difficulty powering up if the power supply is inadequate.  
1-18  
Chapter 1: Product introduction  
5. USB header (10-1 pin USB56)  
If the USB 2.0 port connectors on the back panel are inadequate, a USB  
header is available for two additional USB port connectors. Connect a 2-port  
USB connector set to a USB header and mount the USB bracket to an open  
slot in the chassis.  
®
A7V266-MX  
USB56  
1
A7V266-MX USB Connectors  
The USB connector module is not included in this motherboard package.  
6. GAME/MIDI connector (16-1 pin GAME)  
This connector supports a GAME/MIDI module. If your package came with the  
optional USB 2.0/GAME module, connect the GAME/MIDI cable to this  
connector. The GAME/MIDI port on the module connects a joystick or a game  
pad for playing games, and MIDI devices for playing or editing audio files.  
®
A7V266-MX  
GAME  
A7V266-MX Game Connector  
The GAME port module is not included in this motherboard package.  
ASUS A7V266-MX motherboard user guide  
1-19  
7. CPU and Chassis Fan Connectors  
(3-pin CPU_FAN, CHA_FAN)  
The fan connectors support cooling fans of 350mA~740mA (8.88W max).  
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.  
CPU_FAN  
®
CHA_FAN  
A7V266-MX  
GND  
+12V  
Rotation  
A7V266-MX Fan Connectors  
Do not forget to connect the fan cables to the fan connectors. Lack of sufficient  
air flow within the system may damage the motherboard components. These  
are not jumpers! DO NOT place jumper caps on the fan connectors!  
8. Chassis intrusion connector (4-1 pin CHASSIS)  
This lead is for a chassis designed with intrusion detection feature. This  
requires an external detection mechanism such as a chassis intrusion sensor  
or microswitch. When you remove any chassis component, the sensor triggers  
and sends a high-level signal to this lead to record a chassis intrusion event.  
By default, the pins labeled Chassis Signaland Groundare shorted with a  
jumper cap. If you wish to use the chassis intrusion detection feature, remove  
the jumper cap from the pins.  
CHASSIS  
®
A7V266-MX  
A7V266-MX Chassis Alarm Lead  
(Default)  
1-20  
Chapter 1: Product introduction  
9. Front panel audio connectors (10-1 pin FP_AUDIO)  
This is an interface for front panel audio cable that allows convenient  
connection and control of audio devices.  
®
FP_AUDIO  
A7V266-MX  
A7V266-MX Front Panel Audio Connector  
10. Internal audio connectors (4 pin CD, AUX)  
These connectors allow you to receive stereo audio input from sound sources  
such as a CD-ROM, TV tuner, MPEG card or modem.  
AUX (White) CD (Black)  
®
A7V266-MX  
A7V266-MX Internal Audio Connectors  
ASUS A7V266-MX motherboard user guide  
1-21  
11. System panel connector (20-pin PANEL)  
This connector accommodates several system front panel functions.  
Speaker  
Connector  
Power LED  
®
Reset SW  
A7V266-MX  
IDELED  
ATX Power  
Switch*  
SMI Lead  
*
Requires an ATX power supply.  
A7V266-MX System Panel Connectors  
System Power LED Lead (3-1 pin PLED)  
This 3-1 pin connector connects to the system power LED. The LED lights up  
when you turn on the system power, and blinks when the system is in sleep  
mode.  
System Warning Speaker Lead (4-pin SPEAKER)  
This 4-pin connector connects to the case-mounted speaker and allows you to  
hear system beeps and warnings.  
System Management Interrupt Lead (2-pin SMI)  
This 2-pin connector allows you to manually place the system into a suspend  
mode, or greenmode, where system activity is instantly decreased to save  
power and to expand the life of certain system components. Attach the  
case-mounted suspend switch to this 2-pin connector.  
Reset Switch (2-pin RESET)  
This 2-pin connector connects to the case-mounted reset switch for rebooting  
the system without turning off the power switch.  
ATX Power Switch/Soft-Off Switch Lead (2-pin PWR)  
This connector connects a switch that controls the system power. Pressing the  
power switch turns the system between ON and SLEEP, or ON and SOFT  
OFF, depending on the BIOS or OS settings. Pressing the power switch while  
in the ON mode for more than 4 seconds turns the system OFF.  
Hard Disk Activity Lead (2-pin IDE LED)  
This connector supplies power to the hard disk activity LED. The read or write  
activities of any device connected to the primary or secondary IDE connector  
cause this LED to light up.  
1-22  
Chapter 1: Product introduction  
Chapter 2  
This chapter tells how to change system settings  
through the BIOS Setup menus. Detailed  
descriptions of the BIOS parameters are also  
provided.  
BIOS information  
2.1 Managing and updating your BIOS  
The original BIOS file for this motherboard is in the support CD.  
Copy the original BIOS to a bootable floppy disk in case you  
need to restore the BIOS in the future.  
2.1.1 Creating a bootable floppy disk  
1. Do either one of the following to create a bootable floppy disk.  
DOS environment  
Insert a 1.44 MB floppy disk into the drive. At the DOS prompt, type:  
format a: /s , then press the <Enter> key  
Windows® 98SE environment  
a. From your Windows desktop, click Start, point to Settings, then click  
Control Panel.  
b. Double-click Add/Remove Programs icon from the Control Panel window.  
c. Click on the Startup Disk tab, then on Create Disk... button.  
d. Insert a 1.44 MB floppy disk when prompted. Follow the suceeding screen  
instructions to complete the process.  
Windows® XP environment  
a. Insert a new 1.44 MB floppy disk in the floppy disk drive.  
b. From the Windows desktop, click Start > My Computer.  
c. In the My Computer window, click the 3 1/2 Floppy icon.  
d. From the Menu bar, click File > Format.  
e.  
Select Create an MS-DOS Startup Diskin  
the Format Options field, then click Start.  
2. Copy the original (or the latest) motherboard BIOS to the bootable floppy disk.  
2-2  
Chapter 2: BIOS Information  
2.1.2 Updating BIOS using the AwardBIOS Flash  
Utility  
The Basic Input/Output System (BIOS) can be updated using the built-in Flash  
Memory Writer utility or using a bootable floppy disk with the executable Flash  
Memory Writer Utility (AWDFLASH.EXE). Follow these instructions to update the  
BIOS using this utility.  
1. Download the latest BIOS file from the ASUS website (see ASUS contact info  
on page vi). Rename the file to *.BIN and save it to a floppy disk.  
Save only the updated BIOS file in the floppy disk to avoid loading a  
wrong BIOS file.  
2. Insert the disk that contains the new BIOS file into the floppy drive.  
3. Reboot the computer.  
4. Press <Alt> + <F2> during POST to display the following screen.  
5. AWDFLASH checks the new BIOS file from the floppy disk.  
6. After verification, AWDFLASH flashes the new BIOS file. Do not shut down the  
computer during the flash process.  
7. After the new BIOS file is copied, the computer returns to POST.  
ASUS A7V266-MX motherboard user guide  
2-3  
Updating BIOS via a bootable floppy disk  
1. Boot from the floppy disk.  
2. At the A:\prompt, type C:\and then press <Enter>.  
3. At the C:\prompt, type AWDFLASH/ BIOSFILENAMEand then <Enter>.  
For example: AWDFLASH/ aw0702.binThe AWDFLASH screen appears.  
4. Follow steps 5 to 7 in 2.1.2 Updating BIOS using the Built-in Award BIOS  
Flash Utility.”  
2.1.3 CrashFree BIOS feature  
The CrashFree BIOS feature allows you to boot the computer from a floppy disk  
and update the BIOS in case the original BIOS fails or gets corrupted.  
1. You must have a bootable floppy disk ready before updating the  
BIOS.  
2. The bootable floppy disk could be the one that you created  
following the procedure in section 2.1.1, and should contain the  
AWDFLASH.EXE utility.  
3. If the BIOS fails (ROM data or codes are corrupted), a message  
appears during POST indicating the failure.  
To update the BIOS:  
1. Turn on the computer, and when prompted, place the bootable floppy disk into  
the floppy drive, so that the computer boots from the floppy disk.  
2. Follow the BIOS update procedure in section 2.1.2 Updating BIOS using the  
AwardBIOS Flash Utility.”  
To use the CrashFree BIOS feature on this motherboard, install a VGA  
card into one of the expansion slots before rebooting the computer. On  
motherboards with onboard VGA, such as the A7V8X-MX, you will not  
see the screen display when the BIOS crashes even if you reboot the  
computer.  
2-4  
Chapter 2: BIOS Information  
2.2 BIOS beep codes  
When you turn the power on and the system runs POST (Power On Self Tests),  
you will hear BIOS beeps. Refer to the following table for the meaning of the  
beeps.  
Award BIOS Beep Codes  
Beep  
Meaning  
One short beep when  
displaying logo  
No error during POST  
Long beeps in an endless loop  
No DRAM installed or detected  
One long beep followed by  
three short beeps  
Video card not found or video card  
memory bad  
High frequency beeps when  
system is working  
CPU overheated;  
System running at a lower frequency  
2.3 BIOS Setup program  
This motherboard supports a programmable FLASH ROM that you can update  
using the provided utility described in section 2.1 Managing and updating your  
BIOS.”  
Use the BIOS Setup program when you are installing a motherboard, reconfiguring  
your system, or prompted to Run Setup. This section explains how to configure  
your system using this utility.  
Even if you are not prompted to use the Setup program, you may want to change  
the configuration of your computer in the future. For example, you may want to  
enable the security password feature or make changes to the power management  
settings. This requires you to reconfigure your system using the BIOS Setup  
program so that the computer can recognize these changes and record them in the  
CMOS RAM of the FLASH ROM.  
The FLASH ROM on the motherboard stores the Setup utility. When you start up  
the computer, the system provides you with the opportunity to run this program.  
Press <Delete> during the Power-On Self Test (POST) to enter the Setup utility,  
otherwise, POST continues with its test routines.  
If you wish to enter Setup after POST, restart the system by pressing <Ctrl> +  
<Alt> + <Delete>, or by pressing the reset button on the system chassis. You can  
also restart by turning the system off and then back on. Do this last option only if  
the first two failed.  
The Setup program is designed to make it as easy to use as possible. It is a menu-  
driven program, which means you can scroll through the various sub-menus and  
make your selections among the predetermined choices.  
ASUS A7V266-MX motherboard user guide  
2-5  
Because the BIOS software is constantly being updated, the following  
BIOS setup screens and descriptions are for reference purposes only,  
and may not exactly match what you see on your screen.  
2.3.1 BIOS menu bar  
The top of the screen has a menu bar with the following selections:  
MAIN  
Use this menu to make changes to the basic system  
configuration.  
ADVANCED  
POWER  
BOOT  
Use this menu to enable and make changes to the advanced  
features.  
Use this menu to configure and enable Power Management  
features.  
Use this menu to configure the default system device used to  
locate and load the Operating System.  
Use this menu to exit the current menu or to exit the Setup  
program.  
EXIT  
To access the menu bar items, press the right or left arrow key on the keyboard until  
the desired item is highlighted.  
2.3.2 Legend bar  
At the bottom of the Setup screen is a legend bar. The keys in the legend bar allow  
you to navigate through the various setup menus. The following table lists the keys  
found in the legend bar with their corresponding functions.  
Navigation Key(s)  
Function Description  
Displays the General Help screen  
Navigates the Item Help screen  
Loads previous values  
<F1>  
<F2>  
<F5>  
<F6>  
<F7>  
<Esc>  
Loads fail-safe default values  
Loads optimized values  
Jumps to the Exit menu or returns to the main menu from  
a sub-menu  
Left or Right arrow  
Up or Down arrow  
Selects the menu item to the left or right  
Moves the highlight up or down between fields  
Page Down or (minus)  
Scrolls backward through the values for the highlighted  
field  
Page Up or + (plus)  
<Enter>  
Scrolls forward through the values for the highlighted field  
Brings up a selection menu for the highlighted field  
Saves changes and exit  
<F10>  
2-6  
Chapter 2: BIOS Information  
General help  
In addition to the Item Help window, the BIOS setup program also provides a General  
Help screen. You may launch this screen from any menu by simply pressing <F1>.  
The General Help screen lists the legend keys and their corresponding functions.  
Saving changes and exiting the Setup program  
See 2.8 Exit Menufor detailed information on saving changes and exiting the setup  
program.  
Scroll bar  
When a scroll bar appears to the right of a help window, it indicates that there is more  
information to be displayed that will not fit in the window. Use <PgUp> and <PgDn>  
or the up and down arrow keys to scroll through the entire help document. Press  
<Home> to display the first page, press <End> to go to the last page. To exit the help  
window, press <Enter> or <Esc>.  
Sub-menu  
The right pointer symbol that appears at the left of certain  
parameters indicates that a sub-menu exists for this  
Date (mm:dd:yy)  
Time (hh:mm:ss)  
field. A sub-menu offers additional parameter options.  
To display a sub-menu, move the highlight to the field  
Drive A  
Drive B  
and press <Enter>. The sub-menu appears. Use the  
IDE Primary Master  
legend keys to navigate and enter values within each  
IDE Primary Slave  
IDE Secondary Master  
IDE Secondary Slave  
sub-menu as you would within a menu. Use the <Esc>  
Chassis intrude detection  
Set Supervisor Password  
Set User Password  
Security Option  
key to return to the main menu. Take some time to  
familiarize yourself with the legend keys and their  
corresponding functions. Practice navigating through the  
Installed Memory  
various menus and sub-menus. While moving around  
Halt On  
through the Setup program, note that explanations  
appear in the Item Help window located to the right of  
each menu. This window displays the help text for the  
highlighted field.  
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2-7  
2.4 Main Menu  
Date (mm:dd:yy)  
Time (hh:mm:ss)  
Wed, May 28 2003  
15 : 30 : 30  
Drive A  
Drive B  
[1.44M, 3.5 in.]  
[None]  
Change the day, month,  
year and century.  
IDE Primary Master  
IDE Primary Slave  
IDE Secondary Master  
IDE Secondary Slave  
Chassis intrude detection  
Set Supervisor Password  
Set User Password  
[ST321122A]  
[ASUS CDS520/]  
[None]  
[None]  
[Enabled]  
Clear  
Clear  
Security Option  
[Setup]  
Installed Memory  
Halt On  
[256MB]  
[No Errors]  
Date [mm/dd/yy]  
Sets the system to the date that you specify (usually the current date). The format  
is month, day, year. Valid values for month, day, and year are Month: (1 to 12),  
Day: (1 to 31), Year: (1999 to 2099). Use the <Tab> key to move between the  
month, day, and year fields.  
Time [hh:mm:ss]  
Sets the system to the time that you specify (usually the current time). The format  
is hour, minute, second. Valid values for hour, minute and second are Hour: (00 to  
23), Minute: (00 to 59), Second: (00 to 59). Use the <Tab> key to move between  
the hour, minute, and second fields.  
Drive A [1.44M, 3.5 in.]  
Sets the type of floppy drive installed. Configuration options: [None] [360K, 5.25  
in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.] [2.88M, 3.5 in.]  
Drive B [None]  
Sets the type of floppy drive installed. Configuration options: [None] [360K, 5.25  
in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.] [2.88M, 3.5 in.]  
Chassis intrude detection [Enabled]  
Enable this option to activate the chassis intrusion feature of the motherboard.  
Configuration options: [Enabled] [Disabled]  
2-8  
Chapter 2: BIOS Information  
Set Supervisor Password [Clear] / Set User Password [Clear]  
These fields allow you to set passwords. To set a password, highlight the  
appropriate field and press <Enter>. Type in a password then press <Enter>. You  
can type up to eight alphanumeric characters. Symbols and other characters are  
ignored. To confirm the password, type the password again and press <Enter>.  
The password is now set to [Set]. This password allows full access to the BIOS  
Setup menus. To clear the password, highlight this field and press <Enter>. When  
the same dialog box appear, press <Enter>. The password is set to [Clear].  
A note about passwords  
The BIOS Setup program allows you to specify passwords in the Main menu.  
The passwords control access to the BIOS during system startup. Passwords  
are not case sensitive, meaning, passwords typed in either uppercase or  
lowercase letters are accepted. The BIOS Setup program allows you to specify  
two different passwords: a Supervisor password and a User password. If you  
did not set a Supervisor password, anyone can access the BIOS Setup  
program. If you did, the Supervisor password is required to enter the BIOS  
Setup program and to gain full access to the configuration fields.  
Forgot the password?  
If you forget your password, you can clear it by erasing the CMOS Real Time  
Clock (RTC) RAM. The RAM data containing the password information is  
powered by the onboard button cell battery. If you need to erase the CMOS  
RAM, unplug the all the power cables and remove the button cell battery. Re-  
install the battery after about 2 seconds, then power up the system. Refer to  
section 1.11 Switch and Jumperson how to erase the CMOS RTC RAM.  
Security Option [Setup]  
This field requires users to enter the password before entering the BIOS setup or  
the system. Select [Setup] to require the password before entering the BIOS  
Setup. Select [System] to require the password before entering the system.  
Configuration options: [Setup] [System]  
Installed Memory [XXX MB]  
This field automatically displays the amount of conventional memory detected by  
the system during the boot process.  
Halt On [No Errors]  
This field sets the system to halt on errors according to the system functions  
specified in each option. Configuration options: [All Errors] [No Errors] [All, But  
Keyboard] [All , But Diskette] [All, But Disk/Key]  
ASUS A7V266-MX motherboard user guide  
2-9  
2.4.1 IDE Primary Master/Slave  
IDE Secondary Master/Slave  
IDE Primary Master  
IDE HDD Auto-Detection  
[Press Enter]  
To auto-detect the  
HDD’s size, head...on  
this channel.  
IDE Primary Master  
Access Mode  
[Auto]  
[Auto]  
Capacity  
40020 MB  
Cylinder  
Head  
Precomp  
19158  
16  
0
Landing Zone  
Sector  
Transfer Mode  
19157  
255  
UDMA 2  
IDE HDD Auto-Detection [Press Enter]  
Press enter to automatically detect an IDE hard disk drive, if the hard drive is not  
already detected. In cases of undetected HDDs, pressing enter will detect the HDD  
and then open access to both the IDE Primary Master and Access Mode fields.  
IDE Primary Master/Slave [Auto]  
IDE Secondary Master/Slave [Auto]  
Select [Auto] to automatically detect an IDE hard disk drive. If automatic detection  
is successful, the setup BIOS automatically fills in the correct values for the  
remaining fields on this sub-menu. If automatic detection fails, this may be  
because the hard disk drive is too old or too new. If the hard disk was already  
formatted on a previous system, the setup BIOS may detect incorrect parameters.  
In these cases, select [Manual] to manually enter the IDE hard disk drive  
parameters. If no drive is installed or if you are removing a drive and not replacing  
it, select [None]. Configuration options: [None] [Auto [Manual]  
Access Mode [Auto]  
The default [Auto] automatically detects an IDE hard disk drive. Select [CHS] in  
coordination with the [Manual] setting of the IDE Primary Master in order to enter  
the Hard Disk Drive values manually.  
Before attempting to configure a hard disk drive, make sure you have  
the correct configuration information supplied by the drive  
manufacturer. Incorrect settings may cause the system to fail to  
recognize the installed hard disk.  
2-10  
Chapter 2: BIOS Information  
[Manual] & [CHS] Settings  
IDE Primary Master  
IDE HDD Auto-Detection  
[Press Enter]  
Press [Enter] to  
select sector  
addressing method.  
IDE Primary Master  
Access Mode  
[Manual]  
[CHS]  
Capacity  
40020 MB  
Cylinder  
Head  
Precomp  
[19158]  
[
[
16]  
0]  
Landing Zone  
Sector  
Transfer Mode  
[19157]  
[ 255]  
UDMA 2  
Manually enter the number of cylinders, heads and sectors per track for the drive.  
Refer to the drive documentation or the drive label for this information.  
After entering the IDE hard disk drive information into BIOS, use a disk utility,  
such as FDISK, to partition and format new IDE hard disk drives. This is  
necessary so that you can write or read data from the hard disk. Make sure  
to set the partition of the Primary IDE hard disk drives to active.  
After making your selections on this sub-menu, press the <Esc> key to return to  
the Main menu. The Main menu displays the hard disk drive field with your  
configuration.  
Access Mode [Auto]  
Select the hard disk drive type in this field. When Logical Block Addressing (LBA)  
is enabled, the 28-bit addressing of the hard drive is used without regard for  
cylinders, heads, or sectors. Note that LBA Mode is necessary for drives with more  
than 504MB storage capacity. Select [CHS] to make manual entries for configuring  
the fields below. Configuration options: [CHS] [LBA] [Large] [Auto]  
Cylinders  
This field configures the number of cylinders. Refer to the drive documentation to  
determine the correct value. To make changes to this field, set the IDE Primary  
Master field to [Manual] and the Access Mode to [CHS].  
Head  
This field configures the number of read/write heads. Refer to the drive  
documentation to determine the correct value. To make changes to this field, set  
the IDE Primary Master field to [Manual] and the Access Mode to [CHS].  
Precomp  
This field displays the precompressed volumes on the hard disk, if any, in MB.  
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2-11  
Landing Zone  
This field displays the drives maximum useable capacity as calculated by the  
BIOS based on the drive information you entered.  
Sector  
This field configures the number of sectors per track. Refer to the drive  
documentation to determine the correct value. To make changes to this field, set  
the Type field to [User Type HDD] and the Translation Method field to [Manual].  
Transfer Mode  
This field selects the UDMA transfer mode. Configuration options: [Auto] [UDMA0]  
[UDMA1] [UDMA2] [UDMA3] [UDMA4] [UDMA5]  
2.5 Advanced Menu  
CPU Type  
CPU Speed  
AMD Athlon(tm)  
1050MHz  
CPU Cache RAM  
256K  
100MHz  
133MHz  
[By SPD]  
[Enabled]  
[Enabled]  
Current FSB Frequency  
Current DRAM Frequency  
DRAM Clock  
CPU Internal Cache  
External Cache  
Press [Enter] to  
select the DRAM clock.  
PS/2 Mouse Function Control [Enabled]  
USB Legacy Mode Support  
Chip Configuration  
[Auto]  
I/O Device Configuration  
PCI Configuration  
Frequency/Voltage Control  
The Advanced menu displays the CPU type, speed, cache RAM, front side bus  
frequency and DRAM frequency information. It also contains the following BIOS  
parameters.  
DRAM Clock [By SPD]  
The DRAM clock are set according to the DRAM SPD (Serial Presence Detect).  
You can manually set the DRAM clock parameters.  
Configuration options: [By SPD] [133] [166]  
CPU Internal/External Cache [Enabled]/[Enabled]  
These fields allow you to choose from the default of [Enabled] or choose [Disabled]  
to turn on or off the CPU internal and external built-in cache.  
Configuration options: [Disabled] [Enabled]  
2-12  
Chapter 2: BIOS Information  
PS/2 Mouse Function Control [Enabled]  
Setting this option to Enabled allows the operating system to determine whether to  
enable or disable the mouse. Set to Disabled prevents any installed PS/2 mouse  
from functioning and frees up IRQ 12. Configuration options: [Enabled] [Disabled]  
USB Legacy Support [Auto]  
This motherboard supports Universal Serial Bus (USB) devices. The default of  
[Auto] allows the system to detect a USB device at startup. If detected, the USB  
controller legacy mode is enabled. If not detected, the USB controller legacy mode  
is disabled.  
When you set this field to [Disabled], the USB controller legacy mode is disabled  
whether or not you are using a USB device. Configuration options: [Disabled]  
[Enabled] [Auto]  
2.5.1 Chip Configuration  
Chip Configuration  
AGP & P2P Bridge Control  
DRAM Clock/Drive Control  
CPU & PCI Bus Control  
VIA OnChip IDE Device  
Press [Enter] to go  
to sub menu.  
VGA Share Memory Size  
System BIOS Cacheable  
Video RAM Cacheable  
[32MB]  
[Disabled]  
[Disabled]  
VGA Share Memory Size [32M]  
This field displays the share memory size for the onboard VGA.  
Configuration options: [16] [32] [64] [Disabled]  
System BIOS Cacheable [Disabled]  
This field establishes whether or not the BIOS is cacheable. Disabled by default.  
Configuration options: [Enabled] [Disabled]  
Video RAM Cacheable [Disabled]  
This field establishes whether or not the video RAM is cacheable. Disabled by  
default. Configuration options: [Enabled] [Disabled]  
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AGP & P2P Bridge Control  
AGP & P2P Bridge Control  
AGP Aperture Size  
AGP Mode  
AGP Fast Write  
AGP Master 1 WS Write  
AGP Master 1 WS Read  
AGP 3.0 Calibration Cycle  
Select Display Device  
TV_Type  
[128MB]  
[4X]  
[Disabled]  
[Disabled]  
[Disabled]  
Enabled  
[CRT]  
Press [Enter] to  
select.  
[NTSC]  
TV_Connector  
[CVBS]  
AGP Aperture Size [XXXMB]  
This field sets the size of mapped memory for AGP graphic data.  
Configuration options: [4M] [8M] [16M] [32M] [64M] [128M] [256M] [512M] [1G]  
AGP Mode [4X]  
AGP 4X transfers video data at 1066MB/s and is backward-compatible to AGP 1X  
video card. When set to [1X], the AGP interface only provides a peak data  
throughput of 266MB/s even if you are using an AGP 4x card.  
Configuration options: [1X] [2X] [4X]  
AGP Fast Write [Disabled]  
This field enables or disables the AGP Fastwrite function.  
Configuration options: [Disabled] [Enabled]  
AGP Master 1 WS Write [Disabled]  
Configuration options: [Disabled] [Enabled]  
AGP Master 1 WS Read [Disabled]  
Configuration options: [Disabled] [Enabled]  
AGP 3.0 Calibration Cycle [Enabled]  
This item is enabled by default.  
Select Display Device [CRT]  
This item allows you to select the type of display device.  
Configuration options: [CRT] [TV] [CRT+TV] [DVI] [CRT+DVI] [TV+DVI]  
2-14  
Chapter 2: BIOS Information  
TV_Type [NTSC]  
This option allows you to select the TV standard for TV display output.  
Configuration options: [NTSC] [PAL] [PALM] [PALN] [PALNc]  
TV_Connector [CVBS]  
This item allows you to select the TV connector.  
Configuration options: [CVBS] [S-Video 0]  
DRAM Clock/Drive Control  
DRAM Clock/Drive Control  
DRAM Timing  
DRAM CAS Latency  
Bank Interleave  
[Safe]  
[2.5]  
[Disabled]  
Press [Enter] to  
select DRAM Timing  
Mode. [Safe] is  
recommended. [Manual]  
allows you to set each  
configuration on your  
own.  
Pre-charge to Active (Trp) [2T]  
Active to CMD (Trcd)  
DRAM Burst Lenght  
DRAM Command Rate  
Write Recovery Time  
[2T]  
[4]  
[2T Command]  
[3T]  
DRAM Timing [Safe]  
It is recommended that you set this parameter to [Safe]. Setting to [Auto by SPD]  
synchronizes the DRAM timing with the DRAM Clock. Setting to [Manual] allows  
you to set the values for DRAM CAS Latency, Bank Interleave, Pre-charge to  
Active (TRP) and Active to CMD (Trcd) prameters.  
Configuration options: [Safe] [Auto By SPD] [Manual]  
DRAM CAS Latency [2.5]  
This field sets the override clock cycle for the latency time between the DRAM read  
command and the moment that the data actually becomes available. Normally, the  
system determines the rate automatically by default. Configuration options: [1.5] [2]  
[2.5] [3]  
Bank Interleave [Disabled]  
Configuration options: [Disabled] [2 Bank] [4 Bank]  
Precharge to Active (Trp) [2T]  
Configuration options: [2T] [3T]  
Active to CMD (Trcd) [2T]  
Configuration options: [2T] [3T]  
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2-15  
DRAM Burst Lenght [4]  
Configuration options: [4] [8]  
DRAM Command Rate [2T Command]  
Configuration options: [2T Command] [1T Command]  
Write Recovery Time [3T]  
Configuration options: [3T] [2T]  
CPU & PCI Bus Control  
CPU & PCI Bus Control  
PCI1 Master 0 WS Write  
PCI2 Master 0 WS Write  
PCI1 Post Write  
PCI2 Post Write  
VLink 8X Support  
[Enabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Enabled]  
Press [Enter] to  
select [Enabled] or  
[Disabled].  
PCI Delay Transaction  
PCI1 Master 0 WS Write [Enabled]  
PCI2 Master 0 WS Write [Enabled]  
Configuration options: [Enabled] [Disabled]  
PCI1 Post Write [Enabled]  
PCI2 Post Write [Enabled]  
Configuration options: [Enabled] [Disabled]  
VLink 8X Support [Enabled]  
This option enables or disables the VLink 8X feature of the motherboard. The  
VLink 8X technology allows high bandwidth connection between the North bridge  
and South bridge chipsets. Configuration options: [Enabled] [Disabled]  
PCI Delay Transaction [Enabled]  
When set to [Enabled], this feature frees the PCI bus when the CPU is accessing  
8-bit ISA cards. This process consumes 50-60 PCI clocks without PCI delayed  
transaction. Set this field to [Disabled] when using ISA cards that are not PCI 2.2  
compliant. Configuration options: [Enabled] [Disabled]  
2-16  
Chapter 2: BIOS Information  
VIA OnChip IDE Device  
VIA OnChip IDE Devices  
IDE DMA Transfer Access  
OnChip IDE Channel 0  
OnChip IDE Channel 1  
IDE Prefetch Mode  
[Enabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Auto]  
Press [Enter] to  
select [Enabled] or  
[Disabled].  
Primary Master  
Primary Slave  
PIO  
PIO  
[Auto]  
Secondary Master PIO  
Secondary Slave PIO  
[Auto]  
[Auto]  
[Auto]  
[Auto]  
Primary Master  
Primary Slave  
UDMA  
UDMA  
Secondary Master UDMA  
Secondary Slave UDMA  
[Auto]  
[Auto]  
IDE DMA Transfer Access [Enabled]  
Configuration options: [Enabled] [Disabled]  
OnChip IDE Channel 0 [Enabled]  
OnChip IDE Channel 1 [Enabled]  
Configuration options: [Enabled] [Disabled]  
IDE Prefetch Mode [Enabled]  
Configuration options: [Enabled] [Disabled]  
Primary Master PIO [Auto]  
Primary Slave PIO [Auto]  
This option lets you set a PIO (Programmable Input/Output) mode for Primary IDE  
devices. Configuration options: [Auto] [Mode 0] [Mode 1] [Mode 2] [Mode 3]  
[Mode4]  
Secondary Master PIO [Auto]  
Secondary Slave PIO [Auto]  
This option lets you set a PIO (Programmable Input/Output) mode for Secondary  
IDE devices. Configuration options: [Auto] [Mode 0] [Mode 1] [Mode 2] [Mode 3]  
[Mode 4]  
Primary Master/Slave UDMA [Auto]  
Secondary Master/Slave UDMA [Auto]  
UltraDMA capability allows improved transfer speeds and data integrity for  
compatible IDE devices. Set to Auto to for automatic configuration. Configuration  
options: [Auto] [Disabled]  
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2-17  
2.5.2 I/O Device Configuration  
I/O Device Configuration  
Swap Floppy Drive  
Onboard FDC Controller  
Onboard Serial Port 1  
Onboard Parallel Port  
Parallel Port Mode  
ECP Mode USE DMA  
[Disabled]  
[Enabled]  
[3F8/IRQ4]  
[378/IRQ7]  
[ECP+EPP]  
[3]  
[EPP1.7]  
[Auto]  
[Auto]  
If the system has two  
floppy drives, choose  
[Enable] to assign  
physical drive B to  
logical drive A and  
vice-versa.  
EPP Mode Select  
VIA-3058 AC97 Audio  
VIA-3043 OnChip LAN  
Onboard LAN Boot ROM  
Game Port Address  
MIDI Port Address  
MIDI Port IRQ  
[Disabled]  
[201]  
[330]  
[10]  
Swap Floppy Drive [Disabled]  
Enable this option to assign physical drive B to logical drive A, and vice-versa.  
Configuration options: [Disabled] [Enabled]  
Onboard FDC Controller [Enabled]  
This field allow you to enable the onboard FDC controller.  
Configuration options: [Enabled] [Disabled]  
Onboard Serial Port 1 [3F8/IRQ4]  
These fields allow you to set the address for the onboard serial connector.  
Configuration options: [3F8/IRQ4] [2F8/1RQ3] [3E8/IRQ4] [2E8/IRQ3] [Auto]  
[Disabled]  
Onboard Parallel Port [378/IRQ7]  
This field allows you to set the address of the onboard parallel port connector.  
Configuration options: [378/IRQ7] [278/IRQ5] [3BC/1RQ7]  
Parallel Port Mode [ECP+EPP]  
This field allows you to set the operation mode of the parallel port. [SPP] allows  
normal-speed operation but in one direction only; [EPP] allows bidirectional parallel  
port operation; [ECP] allows the parallel port to operate in bidirectional DMA mode;  
[ECP+EPP] allows normal speed operation in a two-way mode.  
Configuration options: [ECP+EPP] [EPP] [ECP] [SPP]  
ECP Mode USE DMA [3]  
This field sets the parallel port DMA channel for the selected ECP mode. The  
default setting is 3. This selection is available only if you select [ECP] or  
[ECP+EPP] in the Parallel Port Mode item. Configuration options: [3] [1]  
2-18  
Chapter 2: BIOS Information  
EPP Mode Select [EPP1.7]  
This item allows you to set the EPP mode. The default setting is EPP1.7. This  
selection is available only if you select [EPP] or [ECP+EPP] in the Parallel Port  
Mode item. Configuration options: [EPP1.7] [EPP1.9]  
VIA-3058 AC97 Audio [Auto]  
This field allows you to enable or disable the onboard AC97 audio controller.  
Configuration options: [Auto] [Disabled]  
VIA-3043 OnChip LAN [Auto]  
This field allows you to enable or disable the onboard LAN controller.  
Configuration options: [Auto] [Disabled]  
Onboard LAN Boot ROM [Disabled]  
This field allows you to turn on or off the onboard LAN boot ROM. This item  
appears only when onboard LAN is enabled.  
Configuration options: [Disabled] [Enabled]  
Game Port Address [201]  
This field allows you to select the onboard Game port address.  
Configuration options: [201] [209] [Disabled]  
MIDI Port Address [330]  
This field allows you to select the onboard MIDI port address.  
Configuration options: [330] [300] [290] [Disabled]  
MIDI Port IRQ [10]  
This field allows you to set the IRQ assignment of the onboard MIDI port.  
Configuration options: [330] [300] [290] [Disabled]  
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2-19  
2.5.3 PCI Configuration  
PCI Configuration  
Resources controlled by  
IRQ Resources  
[Auto (ESCD)]  
BIOS automatically  
configure all boot  
Plug and Play  
compatible devices. If  
you choose [Auto], you  
cannot select IRQ DMA  
and memory base  
PCI/CGA Palette Snoop  
Assign IRQ for VGA  
Assign IRQ for USB  
[Disabled]  
[Enabled]  
[Enabled]  
address fields, since  
BIOS automatically  
assigns them.  
Resources Controlled by [Auto (ESCD)]  
When set to [Auto (ESCD)], BIOS automatically configures all boot Plug and Play  
devices. Setting to [Manual] enables the IRQ Resources sub-menu for manual  
assignment of IRQ addresses. Configuration options: [Auto (ESCD)] [Manual]  
PCI/VGA Snoop Palette [Disabled]  
Some non-standard VGA cards, like graphics accelerators or MPEG video cards,  
may not show colors properly. Setting this field to [Enabled] corrects this problem.  
If you are using a standard VGA card, leave this field to the default setting  
[Disabled]. Configuration options: [Disabled] [Enabled]  
Assign IRQ for VGA [Enabled]  
Setting this option to [Enabled] allows the BIOS to automatically assign an IRQ  
address for the VGA controller. Configuration options: [Enabled] [Disabled]  
Assign IRQ for USB [Enabled]  
Setting this option to [Enabled] allows the BIOS to automatically assign an IRQ  
address for the USB controller. Configuration options: [Enabled] [Disabled]  
2-20  
Chapter 2: BIOS Information  
IRQ Resources  
IRQ Resources  
IRQ 3 assigned to  
IRQ 4 assigned to  
IRQ 5 assigned to  
IRQ 7 assigned to  
IRQ 9 assigned to  
IRQ 10 assigned to  
IRQ 11 assigned to  
IRQ 12 assigned to  
IRQ 14 assigned to  
IRQ 15 assigned to  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
Select [PCI Device] to  
assign the IRQ to a  
PCI/PnP device. Select  
[Reserved] to allocate  
the IRQ to a legacy  
ISA device.  
IRQ 3, 4, 5, 7, 9, 10, 11, 12, 14, 15 assigned to [PCI Device]  
The IRQ Resources sub-menu is activated when the Resources Controlled by  
parameter is set to [Manual]. Select [PCI Device] to assign an IRQ address to a  
Plug and Play device. Setting to [Reserved] reserves the IRQ address.  
Configuration options: [PCI Devices] [Reserved]  
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2-21  
2.5.4 Frequency/Voltage Control  
Frequency/Voltage Control  
Spread Spectrum  
CPU Clock  
[Disabled]  
[100]  
Spread Spectrum [Disabled]  
This field enables or disables the clock generator spread spectrum.  
Configuration options: [Disabled] [-1.50%] [-1.00%] [-0.70%] [-0.50%] [+/-0.75%]  
[+/-0.50%] [+/-0.35%] [+/-0.25%]  
CPU Clock [100]  
This item allows you to set the CPU frequency. To do so, highlight the item, then  
press <Enter> to display a pop-up menu. Key-in a value from the specified range,  
then press <Enter>. Configuration options: [Min=100] [Max=165]  
2-22  
Chapter 2: BIOS Information  
2.6 Power Menu  
ACPI Function  
[Enabled]  
[S1 (POS)]  
[User Define]  
[Disabled]  
ACPI Suspend Mode  
Power Management Option  
HDD Power Down  
Press [Enter] to  
select [Enabled] or  
[Disabled].  
Auto Suspend Timeout  
Video-off Option  
Video Off Method  
PWR Button < 4 Sec  
Run VGA BIOS if S3 Resume  
AC Loss Auto Restart  
C.O.P. Control  
[Disabled]  
[Suspend -> Off]  
[V/H Sync+Blank]  
[Instant-off]  
[Auto]  
[Previous State]  
[85 degree]  
Power Up Control  
Hardware Monitor  
ACPI Function [Enabled]  
Allows you to enable or disable the ACPI 2.0 support.  
Configuration options: [Enabled] [Disabled]  
ACPI Suspend Mode [S1 (POS)]  
Allows you to select the ACPI state to used for system suspend.  
Configuration options: [S1 (POS)] [S3 (STR)] [S1 & S3]  
Power Management Option [User Define]  
Configuration options: [User Define] [Min Saving] [Max Saving]  
HDD Power Down [Disabled]  
Shuts down any IDE hard disk drives in the system after a period of inactivity as  
set in this user-configurable field. This feature does not affect SCSI hard drives.  
Configuration options: [Disabled] [1Min]...[15Min]  
Auto Suspend Timeout [Disabled]  
Sets the time period before the system goes into suspend mode.  
Configuration options: [Disabled] [1Min] [2Min] [4Min] [6Min] [8Min] [10Min] [20Min]  
[30Min] [40Min] [1Hour]  
Video Off Option [Suspend -> Off ]  
This field determines when to activate the video off feature for monitor power  
management. Configuration options: [Suspend -> Off] [Always On]  
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2-23  
Video Off Method [V/H Sync+Blank]  
This field defines the video off features. The Display Power Management System  
(DPMS) feature allows the BIOS to control the video display card if it supports the  
DPMS feature. [Blank Screen] only blanks the screen. Use this for monitors without  
power management or greenfeatures. Configuration options: [V/H Sync+Blank]  
[Blank Screen] [DPMS support]  
PWR Button < 4 Sec [Instant-off]  
When set to [Instant-off], the ATX switch can be used as a normal system  
power-off button when pressed for less than 4 seconds. [Suspend] allows the  
button to have a dual function where pressing less than 4 seconds puts the system  
in sleep mode. Regardless of the setting, holding the ATX switch for more than 4  
seconds powers off the system. Configuration options: [Instant-off] [Suspend]  
Run VGA BIOS if S3 Resume [Auto]  
Configuration options: [Auto] [Yes] [No]  
AC Loss Auto Restart [Previous State]  
This allows you to set whether or not to reboot the system after AC power loss.  
[Off] leaves your system off while [On] reboots the system. [Previous State] sets  
the system back to the state it was before the power interruption.  
Configuration options: [Previous State] [On] [Off]  
C.O.P. Control [85 degree]  
Sets the threshold value for the CPU temperature. The ASUS CPU Overheating  
Protection (C.O.P.) feature of this motherboard automatically shuts down the  
system when the CPU temperature reaches or exceeds the threshold value.  
Configuration options: [85 degree] [95 degree]  
2-24  
Chapter 2: BIOS Information  
2.6.1 Power Up Control  
Power Up Control  
PS2KB Wakeup Select  
[Hot Key]  
PS2KB Wakeup from S3/S4/S5 [Disabled]  
PS2MS Wakeup from S3/S4/S5 [Disabled]  
Allows keyboard keys  
to turn on the system.  
USB Resume from S3  
Power On by PCI Card  
Modem Ring Resume  
RTC Alarm Resume  
Date (of Month)  
Resume Time  
[Disabled]  
[Disabled]  
[Disabled]  
[Disabled]  
0
0 : 0 : 0  
PS2KB Wakeup Select [Hot Key]  
This parameter allows you to use specific keys on the 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] [Ctrl+F1]...[Ctrl+F12] [Power] [Wake] [Any Key]  
PS2KB Wakeup from S3/S4/S5 [Disabled]  
When set to [Enabled], this parameter allows you to use the PS/2 keyboard to turn  
on the system. Configuration options: [Disabled] [Enabled]  
PS2MS Wakeup from S3/S4/S5 [Disabled]  
When set to [Enabled], this parameter allows you to use the PS/2 mouse to turn on  
the system. This requires an ATX power supply that provides at least 1A on the  
+5VSB lead. Configuration options: [Disabled] [Enabled]  
USB Resume from S3 [Disabled]  
Configuration options: [Disabled] [Enabled]  
Power On by PCI Card [Disabled]  
When set to [Enabled], this parameter allows tyou to turn on the system through the  
PCI LAN or modem card. This feature requires an ATX power supply that provides at  
least 1A on the +5VSB lead. Configuration options: [Disabled] [Enabled]  
Modem Ring Resume [Disabled]  
This allows either settings of [Enabled] or [Disabled] for powering up the computer  
when the external modem receives a call while the computer is in Soft-off mode.  
Configuration options: [Disabled] [Enabled]  
RTC Alarm Resume [Disabled]  
Allows you to enable or disable RTC to generate a wake event. When this item is  
enabled, the Date and Resume Time fields are activated for manual setup.  
Configuration options: [Disabled] [Enabled]  
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2-25  
2.6.2 Hardware Monitor  
Hardware Monitor  
CPU Fan Check  
System Fan Check  
CPU Temperature Warning  
[Enabled]  
[Disabled]  
[Disabled]  
Press [Enter] to  
select.  
M/B Temp  
CPU Temp  
34°C/ 93°F  
47°C/116°F  
Chassis Fan  
CPU Fan  
0RPM  
5443RPM  
Vcore  
+3.3V  
+5V  
1.79V  
3.37V  
4.94V  
11.36V  
+12V  
CPU Fan Check [Enabled]  
Setting this option to Enabled allows the onboard hardware monitor to check the  
CPU fan speed. Configuration options: [Enabled] [Disabled]  
System Fan Check [Enabled]  
This option allows the onboard hardware monitor to check the system fan rotation.  
Configuration options: [Enabled] [Disabled]  
CPU Warning Temp [Disabled]  
This option allows BIOS to set a threshold value for the CPU temperature. The  
system shuts down when the CPU temperature reaches the threshold value.  
Configuration options: [Disabled] [50°C/122°F] [53°C/127°F] [56°C/133°F]  
[60°C/140°F] [63°C/145°F] [66°C/151°F] [70°C/158°F]  
M/B Temp [xxx°C/xxx°F]  
CPU Temp [xxx°C/xxx°F]  
The onboard hardware monitor automatically detects and displays the  
motherboard and CPU temperatures.  
Chassis Fan [xxxxRPM] or [0RPM]  
CPU Fan [xxxxRPM] or [0RPM]  
The onboard hardware monitor automatically detects and displays the CPU and  
chassis fan speeds in rotations per minute (RPM). If any of the fans is not  
connected to the motherboard, that field shows 0RPM.  
Vcore, +3.3V, +5V, +12V  
The onboard hardware monitor automatically detects the voltage output through  
the onboard voltage regulators.  
2-26  
Chapter 2: BIOS Information  
2.7 Boot Menu  
First Boot Device  
Second Boot Device  
Third Boot Device  
Fourth Boot Device  
PNP OS Installed  
Reset Configuration Data  
Quick Power On Self Test  
Boot Up Floppy Seek  
APIC Mode  
[HDD-0]  
[CDROM]  
[Floppy]  
[Disabled]  
[Yes]  
[Disabled]  
[Disabled]  
[Disabled]  
[Enabled]  
Select your boot  
device priority.  
First, Second, Third, Fourth Boot Device  
The Boot Menu allows you to select 13 types of boot devices. Promotion or  
demotion of devices alters the priority which the system uses to boot device on  
system power up. Configuration options include [Floppy] [LS120] [HDD-0] [SCSI]  
[CDROM] [HDD-1] [HDD-2] [HDD-3] [ZIP100] [USB-FDD] [USB-ZIP]  
[USB-CDROM] [USB-HDD] [LAN] [Disabled]  
PNP OS Installed [Yes]  
This field allows you to use a Plug and Play (PnP) operating system to configure  
the PCI bus slots instead of using the BIOS. When [Yes] is selected, interrupts may  
be reassigned by the OS. If you installed a non-PnP OS or if you want to prevent  
reassigning of interrupt settings, keep the default setting [No].  
Configuration options: [Yes] [No]  
Reset Configuration Data [Disabled]  
Select [Enabled], if you want to clear the Extended System Configuration Data  
(ESCD). Configuration options: [Disabled] [Enabled]  
Quick Power-On-Self-Test [Disabled]  
This field speeds up the Power-On-Self Test (POST) routine by skipping retesting  
several times. Configuration options: [Disabled] [Enabled]  
Boot up Floppy Seek [Disabled]  
When enabled, the BIOS will seek the floppy disk drive to determine whether the  
drive has 40 or 80 tracks. Configuration options: [Disabled] [Enabled]  
APIC Mode [Enabled]  
When enabled, this option allows you to distribute interrupt routings other than the  
16 IRQs. The Programmable Interrupt Controller (PIC) setting allows you to use  
the 16 IRQs only. Configuration options: [Enabled] [Disabled]  
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2-27  
2.8 Exit Menu  
Save & Exit Setup  
Exit Without Saving  
Load Optimized Defaults  
Discard Changes  
Save data to CMOS.  
Save Changes  
Save & Exit Setup  
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. The CMOS  
RAM is sustained by an onboard backup battery and stays on even when the PC is  
turned off. When you select this option, a confirmation window appears. Select  
[Yes] to save changes and exit.  
Exit Without Saving  
Select this option only if you do not want to save the changes that you made to the  
Setup program. If you made changes to fields other than system date, system  
time, and password, the BIOS asks for a confirmation before exiting.  
Load Optimized Defaults  
This option allows you to load the optimized values for each of the parameters on  
the Setup menus. When you select this option or if you press <F7>, a confirmation  
window appears. Select [Yes] to load optimized values. Select Save & Exit or make  
other changes before saving the values to the non-volatile RAM.  
Discard Changes  
This option allows you to discard the selections you made and restore the  
previously saved values. After selecting this option, a confirmation appears. Select  
[Yes] to discard any changes and load the previously saved values.  
Save Changes  
This option saves your selections without exiting the Setup program. You can then  
return to other menus and make further changes. After you select this option, a  
confirmation window appears. Select [Yes] to save changes to the non-volatile RAM.  
2-28  
Chapter 2: BIOS Information  
Chapter 3  
This chapter describes the contents of the  
support CD that comes with the motherboard  
package.  
Software support  
3.1 Installing an operating system  
This motherboard supports Windows® 98SE/ME/2000/XP as well as Linux Red  
Hat, SuSE, TurboLinux and Caldera operating systems (OS). Always install the  
latest OS version and corresponding updates so you can maximize the features of  
your hardware.  
Because motherboard settings and hardware options vary, use the setup  
procedures presented in this chapter for general reference only. Refer to your  
OS documentation for more information.  
3.2 Support CD information  
The support CD that came with the motherboard contains useful software and  
several utility drivers that enhance the motherboard features.  
The contents of the support CD are subject to change at any time without  
notice. Visit the ASUS website for updates.  
3.2.1 Running the support CD  
To begin using the support CD, insert the CD to your CD-ROM drive. The CD  
automatically displays the Drivers menu if Autorun is enabled in your computer.  
Click an item to install  
Click an icon to display  
more information  
If Autorun is NOT enabled in your computer, browse the contents of the  
support CD to locate the file ASSETUP.EXE from the BIN folder. Double-  
click the ASSETUP.EXE to run the CD.  
Some menu items appear only to specific operating system versions.  
3-2  
Chapter 3: Software support  
3.2.2 Drivers menu  
The drivers menu shows the available device drivers if the system detects installed  
devices. Install the necessary drivers to activate the devices.  
Screen display and driver options may not be the same for other operating  
system versions.  
VIA 4 in 1 Driver  
The item installs the following drivers:  
VIA Registry (INF) driver  
VIA AGP VxD driver  
VIA ATAPI vendor support driver  
VIA PCI IRQ Miniport driver  
KM266 Display Driver  
Click this item to install the KM266 display driver for the onboard VGA.  
AD1980 SoundMAX Audio Driver  
This item installs the AD1980 SoundMAX audio driver and applications.  
VIA 10/100Mb LAN Driver  
Click this item to install the VIA 10/100Mb Fast Ethernet Adapter driver for your  
local area network (LAN).  
AGP Patch file for AMD K7  
Click this item to install the AGP patch file for AMD K7 systems.  
USB 2.0 Driver  
This item installs the USB 2.0 driver.  
ASUS A7V266-MX motherboard user guide  
3-3  
3.2.3 Utilities menu  
The drivers menu shows the available device drivers if the system detects installed  
devices. Install the necessary drivers to activate the devices.  
ASUS PC Probe  
This utility continuously monitors vital system information such as fan rotations,  
CPU temperature, and system voltages, and alerts you on any detected problems.  
This utility helps you keep your computer in a healthy operating condition.  
ASUS Update  
The ASUS Update is a utility that allows you to update the motherboard BIOS and  
drivers. This utility requires an Internet connection either through a network or an  
Internet Service Provider (ISP).  
Microsoft DirectX 8.1  
This item installs the Microsoft DirectX 8.1 drivers.  
PC-CILLIN 2002  
This item installs the PC-cillin 2002 anti-virus program. View the PC-cillin online  
help for detailed information.  
Adobe Acrobat Reader  
This item installs the Adobe Acrobat Reader. The Acrobat Reader software is for  
viewing files saved in Portable Document Format (PDF).  
ASUS Screensaver  
This item installs the ASUS screensaver.  
3-4  
Chapter 3: Software support  
3.2.4 ASUS contact information  
Click the Contact tab to display ASUS contact information.  
ASUS A7V266-MX motherboard user guide  
3-5  
3-6  
Chapter 3: Software support  

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