Asus Computer Accessories ASUS Motherboard User Manual

A7V8X-LA  
Kelut  
User Guide  
A7V8X-LA specification summary  
CPU  
Socket A for AMD Athlon™/Athlon™XP  
Core frequency up to Athlon™ XP 3200+  
Chipset  
VIA KM400A  
VIA VT8237  
Front Side Bus (FSB)  
Memory  
400/333/266MHz  
2 x 184-pin DDR DIMM sockets support up to maximum  
2GB unbuffered PC2700/2100 non-ECC DDR  
SDRAM memory  
Expansion slots  
Storage  
3 x PCI  
1 x AGP 8X/4X (1.5V)  
2 x UltraDMA100 IDE connectors  
2 x Serial ATA connectors  
Integrated Graphics  
Audio  
Integrated VIA UniChrome™ Graphics  
Realtek ALC658 6-channel AUDIO CODEC  
Digital audio via an S/PDIF out interface  
LAN  
Southbridge integrated 10/100 Mbps LAN controller and  
VT6103 LAN PHY  
IEEE 1394  
VIA VT6307 supports two IEEE 1394 ports  
Hardware Monitoring  
Super I/O integrated monitoring of CPU/chassis fan and  
MB/CPU temperature  
Rear Panel I/O Ports  
1 x Parallel  
1 x Serial  
1 x PS/2 Keyboard  
1 x PS/2 Mouse  
1 x RJ45 port  
1 x Audio I/O  
1 x VGA port  
1 x IEEE 1394 port  
4 x USB 2.0/1.1  
Internal I/O  
Connectors  
2 x USB connectors support additional 4 USB 2.0 ports  
1 x IEEE 1394 connector for an additional IEEE 1394 port  
CPU/chassis fan connectors  
20-pin ATX power connector  
Front panel connector  
CD/AUX connectors  
Front panel audio connector  
S/PDIF out connector  
(Continued next page)  
iii  
A7V8X-LA specification summary  
BIOS features  
4Mb Flash ROM, Award BIOS, Enhanced ACPI, DMI2.0,  
Green, PnP features  
Industry standard  
Manageability  
PCI 2.2, USB 2.0/1.1  
WOL, WOR, Wake on KB, Wake on PS/2 mouse  
Support CD contents  
Device drivers  
ASUS PC Probe  
ASUS Screensaver  
Award BIOS Flash Utility  
Microsoft® Direct X  
Adobe Acrobat Reader  
Trend MicroPC-cillin 2002  
Accessories  
Form Factor  
User Guide  
ASUS A7V8X-LA support CD  
UltraDMA cable  
FDD cable  
I/O shield  
Micro-ATX form factor: 9.6 in x 9.6 in  
* Specifications are subject to change without notice  
iv  
1. Motherboard layout  
24.5cm (9.6in)  
PS/2KBMS  
T: Mouse  
B: Keyboard  
CPU_FAN  
Socket 462  
COM1  
VGA  
ATX12V  
Bottom:  
T:USB1  
B:USB2  
Top:  
1394  
VIA  
KM400A  
(VT8378)  
CHA_FAN  
USB2.0  
T: USB3  
B: USB4  
Top:  
RJ-45  
Top:Line In  
FRONT_1394  
Center:Line Out  
Below:Mic In  
VIA  
VT6307  
Accelerated Graphics Port (AGP1)  
SATA2  
SATA1  
VIA  
VT6103  
PCI1  
A7V8X-LA(KELUT)  
VIA  
VT8237  
SPDI/F  
PCI2  
Super  
I/O  
AUX-IN  
CD-IN  
BUZZER  
CLPWD  
BAT1  
CLRTC  
PCI3  
ALC658  
PRONT_AUDIO  
FRONT_USB1  
FRONT_USB2  
ASUS A7V8X-LA motherboard  
1
2. Central Processing Unit (CPU)  
The motherboard comes with a Socket A (462) for the AMD processor. AMD  
processors offer gigahertz speeds to support all latest computing platforms and  
applications. The A7V8X-LA supports AMD Athlon™/Athlon XP™ 3200+  
processors. This motherboard also supports 400/333/266MHz front side bus  
(FSB), and allows data transfers of up to 2.7 GB/s with PC2700 DDR.  
Each AMD CPU has a “marked” corner. 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 a heatsink should be attached to the CPU to prevent overheating.  
CPU NOTCH  
TO INNER  
CORNER  
LOCK  
LEVER  
A7V8X-LA(KELUT)  
CPU NOTCH  
AMD™ CPU  
A7V8X-LA(KELUT) Socket 462  
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 fits only in one correct orientation. DO NOT force the CPU into the  
socket to prevent bending the pins and damaging the CPU!  
2
ASUS A7V8X-LA motherboard  
3. System memory  
The motherboard comes with two Double Data Rate (DDR) Dual Inline Memory  
Module (DIMM) sockets. These sockets support up to 2 GB system memory using  
184-pin unbuffered non-ECC PC/2700/PC2100/PC1600 double-sided DDR  
DIMMs.  
The following figure illustrates the location of the DDR DIMM sockets.  
A7V8X-LA(KELUT)  
A7V8X-LA(KELUT) 184-Pin DDR DIMM Sockets  
CAUTION: DIMMs are keyed to fit with only one direction. DO NOT force a  
DIMM into a socket to avoid damaging the DIMM.  
Installing a DIMM  
You may install 64MB, 128MB, 256MB, 512MB, 1GB DDR DIMMs into the DIMM  
sockets using the memory configurations in this section.  
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.  
Follow these steps to install a DIMM.  
DDR DIMM notch  
1. Unlock a DIMM socket by pressing  
the retaining clips outward.  
2. Align a DIMM on the socket such  
that the notch on the DIMM  
matches the break on the socket.  
3. Firmly insert the DIMM into the  
socket until the retaining clips  
snap back in place and the DIMM  
Unlocked Retaining Clip  
is properly seated.  
ASUS A7V8X-LA motherboard  
3
4. Expansion slots  
The motherboard has three PCI slots and one Accelerated Graphics Port (AGP) slot.  
To install and configure an expansion card:  
1. Install an expansion card following the instructions that came with the chassis.  
2. Turn on the system and change the necessary BIOS settings, if any.  
3. Assign an IRQ to the card. Refer to the tables below.  
4. Install the drivers and/or software applications for the expansion card  
according to the card documentation.  
Standard interrupt assignments  
IRQ  
0
Priority  
Standard Function  
1
System Timer  
1
2
Keyboard Controller  
2
N/A  
11  
12  
13  
14  
15  
3
Programmable Interrupt  
Communications Port (COM2)  
Communications Port (COM1)  
Sound Card (sometimes LPT2)  
Floppy Disk Controller  
3*  
4*  
5*  
6
7*  
Printer Port (LPT1)  
8
System CMOS/Real Time Clock  
ACPI Mode when used  
IRQ holder for PCI steering  
IRQ holder for PCI steering  
PS/2 Compatible Mouse Port  
Numeric Data Processor  
Primary IDE Channel  
9*  
4
10*  
11*  
12*  
13  
14*  
15*  
5
6
7
8
9
10  
Secondary IDE Channel  
*
These IRQs are usually available for ISA or PCI devices.  
IRQ assignments for this motherboard  
A
shared  
––  
B
––  
C
––  
D
––  
PCI slot 1  
PCI slot 2  
shared  
––  
––  
––  
PCI slot 3  
––  
shared  
––  
––  
AGP slot  
shared  
––  
––  
––  
Onboard 1394 controller  
––  
––  
shared  
4
ASUS A7V8X-LA motherboard  
PCI slots  
There are three (3) 32-bit PCI slots on this motherboard. The slots support PCI  
cards such as a LAN card, SCSI card, USB card, and other cards that comply with  
PCI specifications. The figure below shows a typical PCI card installed into a slot.  
AGP slot  
This motherboard has an Accelerated Graphics Port (AGP) slot that supports  
AGP 8X/4X cards. When you buy an AGP card, make sure that you ask for one  
with +1.5V specification.  
Note the notches on the card golden fingers to ensure that they fit the AGP slot on  
your motherboard.  
Install only +1.5V AGP cards on this motherboard!  
A7V8X-LA(KELUT)  
Keyed for 1.5v  
A7V8X-LA(KELUT)  
Accelerated Graphics Port (AGP)  
ASUS A7V8X-LA motherboard  
5
5. Jumpers  
1. Clear CMOS (3-pin CLRTC)  
This jumper allows you to clear the RAM data in CMOS, except the system  
date and time. The RAM data in CMOS, is powered by the onboard button cell  
battery.  
To erase the CMOS RAM:  
1. Turn OFF the computer and unplug the power cord.  
2. Move the jumper cap from pins 2-3 (Default) to pins 1-2 (Clear CMOS).  
Keep the cap on pins 1-2 for about 5~10 seconds, then move the cap back  
to pins 2-3.  
3. Plug the power cord and turn ON the computer.  
4. Hold down the <F1> key during the boot process and enter the BIOS setup  
to re-enter data.  
Except when clearing the CMOS RAM, never remove the jumper cap on CLRTC  
jumper default position. Removing the cap will cause system boot failure!  
CLRTC  
1 2  
2 3  
A7V8X-LA(KELUT)  
Clear CMOS  
Normal  
(Default)  
A7V8X-LA(KELUT) Clear RTC RAM  
6
ASUS A7V8X-LA motherboard  
2. Clear Password (3-pin CLPWD)  
This jumper allows you to clear the BIOS setup password.  
To erase the BIOS setup password:  
1. Turn OFF the computer and unplug the power cord.  
2. Move the jumper cap from pins 2-3 (Default) to pins 1-2 (Clear Password).  
Keep the cap on pins 1-2 for about 5~10 seconds, then move the cap back  
to pins 2-3.  
3. Plug the power cord and turn ON the computer.  
4. Hold down the <F1> key during the boot process and enter the BIOS setup  
to set a new password.  
CLPWD  
1 2  
2 3  
A7V8X-LA(KELUT)  
Clear Password Normal  
(Default)  
A7V8X-LA(KELUT) Clear Password Setting  
ASUS A7V8X-LA motherboard  
7
6. Connectors  
This section describes and illustrates the internal connectors on the motherboard.  
1. Floppy disk drive connector (34-1 pin FLOPPY)  
This connector supports the provided floppy drive ribbon cable. After  
connecting one end to the motherboard, connect the other end to the floppy  
drive. (Pin 5 is removed to prevent incorrect insertion when using ribbon cables  
with pin 5 plug.)  
FLOPPY  
NOTE: Orient the red markings on  
the floppy ribbon cable to PIN 1.  
A7V8X-LA(KELUT)  
PIN 1  
A7V8X-LA(KELUT) Floppy Disk Drive Connector  
2. ATX power connectors (20-pin ATXPWR; 4-pin ATX12V)  
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.  
Make sure that your 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.  
ATXPWR  
ATX12V  
+12V DC  
+12V DC  
GND  
+12.0VDC  
+5.0VDC  
GND  
+5VSB  
PWR_OK  
COM  
+5.0VDC  
-5.0VDC  
COM  
+5.0VDC  
COM  
COM  
COM  
+5.0VDC  
COM  
PS_ON#  
COM  
A7V8X-LA(KELUT)  
+3.3VDC  
+3.3VDC  
-12.0VDC  
+3.3VDC  
A7V8X-LA(KELUT) ATX Power Connectors  
8
ASUS A7V8X-LA motherboard  
3. IDE connectors (40-1 pin PRIMARY_IDE, SECONDARY_IDE)  
This connector supports the provided UltraDMA IDE hard disk ribbon cable.  
Connect the cable’s blue connector to the primary (recommended) or secondary  
IDE connector, then connect the gray connector to the UltraDMA100 device  
(hard disk drive) and the black connector to the UltraDMA100 master device. It is  
recommended that you connect non-UltraDMA100 devices to the secondary IDE  
connector. If you install two hard disks, you must configure the second drive as a  
slave device by setting its jumper accordingly. Refer to the hard disk  
documentation for the jumper settings. BIOS supports specific device bootup. If  
you have more than two UltraDMA100 devices, purchase another UltraDMA  
cable. You may configure two hard disks to be both master devices with two  
ribbon cables – one for the primary IDE connector and another for the secondary  
IDE connector.  
1. 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.  
2. The hole near the blue connector on the UltraDMA cable is intentional.  
NOTE: Orient the red markings  
(usually zigzag) on the IDE  
ribbon cable to PIN 1.  
A7V8X-LA(KELUT)  
PIN 1  
A7V8X-LA(KELUT) IDE Connectors  
ASUS A7V8X-LA motherboard  
9
4. CPU and Chassis Fan Connectors (3-pin CPU_FAN, 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. 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!  
CPU_FAN  
CHA_FAN  
A7V8X-LA(KELUT)  
GND  
+12V  
Rotation  
A7V8X-LA(KELUT) 12-Volt Fan Connectors  
5. Internal audio connectors (4-pin AUX-IN, CD-IN)  
These connectors allow you to receive stereo audio input from sound sources  
such as a CD-ROM, TV tuner, or MPEG card.  
A7V8X-LA (KELUT)  
AUX-IN (White)  
CD-IN (Black)  
A7V8X-LA (KELUT) Internal Audio Connectors  
10  
ASUS A7V8X-LA motherboard  
6. USB headers (10-1 pin FRONT_USB1)  
If the USB ports on the rear panel are inadequate, a USB header is available  
for additional USB ports. The USB header complies with USB 2.0 specification  
that supports up to 480 Mbps connection speed. This speed advantage over  
the conventional 12 Mbps on USB 1.1 allows faster Internet connection,  
interactive gaming, and simultaneous running of high-speed peripherals. You  
may connect a USB module to the USB header.  
FRONT_USB1 FRONT_USB2  
A7V8X-LA(KELUT)  
1
1
A7V8X-LA(KELUT) USB 2.0 Header  
7. S/PDIF out connector (3-pin SPDI/F)  
This connector is for an S/PDIF audio module that allows digital instead of  
analog sound output. Connect one end of the audio cable to this connector and  
the other end to the S/PDIF module.  
SPDI/F  
A7V8X-LA(KELUT)  
A7V8X-LA(KELUT) Header SPDI/F Connector  
ASUS A7V8X-LA motherboard  
11  
8. IEEE 1394 connector (10-1 pin FRONT_1394)  
This connector is for a 10-to-6-pin 1394 serial connector cable that connects to  
a 1394 module. Attach the 10-1 pin cable plug to this connector, and the 6-pin  
cable plug to the 1394 module. You may also connect a 1394-compliant  
internal hard disk to this connector.  
NEVER connect a USB cable to any of the IEEE 1394 connectors. Doing so  
will damage the motherboard!  
1
A7V8X-LA(KELUT)  
TPA+  
GND  
TPB+  
+12V  
TPA-  
GND  
TPB-  
+12V  
GND  
FRONT_1394  
A7V8X-LA(KELUT) FRONT_1394 Connector  
The IEEE 1394 module is purchased separately.  
9. Front audio connector (10-1 pin FRONT_AUDIO)  
This connector is for a chassis-mounted front panel headphone and MIC-IN  
jack.  
PHONE_AUDIO  
1
A7V8X-LA(KELUT)  
A7V8X-LA(KELUT)  
Front HeadPhone & MIC-IN Header Connector  
12  
ASUS A7V8X-LA motherboard  
10. Serial ATA connectors (7-pin SATA2, SATA1)  
These next generation connectors support the thin Serial ATA cables for Serial ATA  
hard disks. The current Serial ATA interface allows up to 150 MB/s data transfer  
rate, faster than the standard parallel ATA with 133MB/s (Ultra ATA133).  
SATA2  
SATA1  
A7V8X-LA(KELUT)  
A7V8X-LA(KELUT) SATA Connectors  
Important notes on Serial ATA  
The Serial ATA cable is smaller and more flexible allowing easier  
routing inside the chassis. The lower pin count of the Serial ATA  
cable eliminates the problem caused by the wide, flat ribbon cables  
of the Parallel ATA interface.  
Hot plug support for Serial ATA drive and connections are not available in  
this motherboard.  
Adjust the necessary BIOS settings when using the Serial ATA interface.  
Install Windows® XP™ Service Pack 1 when using Serial ATA.  
ASUS A7V8X-LA motherboard  
13  
11. System panel connector (10-1 pin FRONT_PANEL)  
This connector accommodates several system front panel functions.  
Power LED Power Button  
FRONT_PANEL  
A7V8X-LA(KELUT)  
HDD LED Reset  
A7V8X-LA(KELUT)  
Front Panel Audio Connector  
System Power LED Lead (2-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.  
Hard Disk Activity LED Lead (2-pin HDLED)  
This 2-pin connector is for the HDD LED cable. The read or write activities of the  
device connected to the any of IDE connectors cause the IDE LED to light up.  
ATX Power Switch / Soft-Off Switch Lead (2-pin PWRBTN)  
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.  
Reset Switch Lead (2-pin RESET)  
This 2-pin connector connects to the case-mounted reset switch for rebooting  
the system without turning off the system power.  
14  
ASUS A7V8X-LA motherboard  

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