Asus A7N8X LA User Manual

A7N8X-LA  
(Focus)  
User Guide  
A7N8X-LA (Focus) specifications summary  
CPU  
Socket A for AMD Athlon™/Athlon XP™  
Supports up to Athlon XP™ 3200+  
Chipset  
nVidia nForce2 400 SPP  
nVidia MCP-T  
Front Side Bus (FSB)  
Memory  
400/333/266 MHz  
2 x 184-pin DDR DIMM sockets for up to 2GB memory  
Supports PC2700/PC2100 double-sided DDR  
Expansion slots  
IDE  
1 x AGP 8X slot  
3 x PCI slots  
2 x UltraDMA100/66/33 connectors, PIO Mode 3/4  
Supports ATAPI IDE, CD-ROM, CD-R, CD-RW and LS-120  
Onboard Audio  
RealTek ALC650 6-channel audio CODEC subsystem  
AC’97 2.2 compliant  
Onboard LAN  
Realtek 8201BL LAN PHY supports 10/100 Mbps  
Onboard IEEE 1394  
Agere FW802C PHY supports 2 x 1394 ports with  
400/200/100Mbps data transfer rate  
Hardware monitoring  
Special features  
Super I/O integrated monitoring of CPU and chassis fan  
rotations and CPU/chassis temperature  
Wakeup on Ring, LAN, Keyboard, PS/2 Mouse, RTC Timer  
Supports ACPI STR (S3) function  
Restart/Off Setup of AC recovery from power failure  
Rear panel I/O  
1 x Parallel port  
1 x Serial port  
1 x PS/2 keyboard port  
1 x PS/2 mouse port  
4 x USB 2.0 ports  
1 x RJ-45 port  
1 x IEEE 1394 port  
Line In/Line Out/Microphone ports  
Internal I/O  
1 x USB 2.0 connector for 2 additional USB ports  
1 x IEEE 1394 connector for additional 1394 port  
CPU/chassis fan connectors  
20-pin ATX power connectors  
S/PDIF out connector  
CD/AUX audio connectors  
Front headphone connector  
Front MIC-IN connector  
(Continued next page)  
iii  
A7N8X-LA (Focus) specifications summary  
BIOS features  
4Mb Flash ROM, AMI BIOS with Enhanced ACPI,  
DMI, Green, PnP features  
Industry Standard  
Form factor  
USB 2.0/1.1, PCI 2.2  
MicroATX form factor: 9.6 in x 9.6 in (24.5 cm x 24.5 cm)  
* Specifications are subject to change without notice  
iv  
1. Motherboard layout  
24.5cm (9.64in)  
PS/2  
T: Mouse  
B: Keyboard  
Socket 462  
CPU_FAN1  
COM1  
Bottom:  
Top:  
USB1  
1394  
nVidia  
USB2  
nForce2  
400 SPP  
Chipset  
Bottom:  
Top:  
RJ-45  
USB1  
USB2  
Top:Line In  
Center:Line Out  
Below:Mic In  
0
1
4
5
Accelerated Graphics Port (AGP8X1)  
Realtek  
RTL8201  
Super  
I/O  
A7N8X-LA/Focus  
CHA_FAN1  
PCI 1  
nVIDIA  
MCP-T  
Chipset  
BAT1  
J11  
ASPDIF1  
PCI 2  
Agere  
4Mb  
BIOS  
1394  
CLRTC1  
PHY  
HJACK1  
PCI 3  
CD1 AUX1  
BUZZ1  
Audio  
Codec  
FP_MIC1  
USB56  
IEEE1394_1  
HPANEL  
ASUS A7N8X-LA (Focus) Motherboard  
1
2. Central Processing Unit (CPU)  
The motherboard provides a Socket A (462) for CPU installation. AMD processors  
offer gigahertz speeds to support all latest computing platforms and applications.  
The A7N8X-LA supports AMD Athlon™/Athlon XP™ 3200+ processors. This  
motherboard supports 400/333/266MHz front side bus (FSB), and allows data  
transfers of up to 2.7GB/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  
A7N8X-LA/Focus  
CPU NOTCH  
AMDCPU  
A7N8X-LA/Focus  
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 A7N8X-LA (Focus) Motherboard  
3. System memory  
The motherboard comes with two Double Data Rate (DDR) Dual Inline Memory  
Module (DIMM) sockets. These sockets support up to 2GB system memory using  
184-pin unbuffered non-ECC PC2700/PC2100 double-sided DDR DIMMs.  
The following figure illustrates the location of the DDR DIMM sockets.  
104 Pins  
A7N8X-LA/Focus  
80 Pins  
A7N8X-LA/Focus  
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, and 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.  
DDR DIMM notch  
Follow these steps to install a DIMM.  
1. Unlock a DIMM socket by pressing  
the retaining clips outward.  
2. Align a DIMM on the socket such that  
the notch on the DIMM matches the  
break on the socket.  
3. Firmly insert the DIMM into the socket  
until the retaining clips snap back in  
Unlocked Retaining Clip  
place and the DIMM is properly  
seated.  
ASUS A7N8X-LA (Focus) 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  
System Timer  
1
1
2
Keyboard Controller  
2
3*  
4*  
5*  
6
7*  
8
9*  
10*  
11*  
12*  
13  
14*  
15*  
N/A  
11  
12  
13  
14  
15  
3
4
5
6
7
Programmable Interrupt  
Communications Port (COM2)  
Communications Port (COM1)  
Sound Card (sometimes LPT2)  
Floppy Disk Controller  
Printer Port (LPT1)  
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  
8
9
10  
Secondary IDE Channel  
*
These IRQs are usually available for ISA or PCI devices.  
IRQ assignments for this motherboard  
A
B
C
D
E
F
G
H
PCI slot 1  
shared  
PCI slot 2  
used  
PCI slot 3  
used  
AGP slot  
shared  
Onboard USB controller 1  
Onboard LAN  
Onboard audio  
Onboard 1394 controller  
4
ASUS A7N8X-LA (Focus) 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 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!  
AGP Card without Retention Notch  
A7N8X-LA/Focus  
A7N8X-LA/Focus  
Accelerated Graphics Port (AGP8X)  
ASUS A7N8X-LA (Focus) Motherboard  
5
5. Jumpers  
1. Clear RTC (3-pin CLRTC1)  
This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS.  
You can clear the CMOS memory of date, time, and system setup parameters  
by erasing the CMOS RTC RAM data. The RAM data in CMOS, that include  
system setup information, is powered by the onboard button cell battery.  
To erase the RTC RAM:  
1. Turn OFF the computer and unplug the power cord.  
2. Move the jumper cap from pins 1-2 (Default) to pins 2-3 (Clear CMOS).  
Keep the cap on pins 2-3 for about 5~10 seconds, then move the cap  
back to pins 1-2.  
3. Plug the power cord and turn ON the computer.  
4. Hold down the <Del> key during the boot process and enter BIOS setup  
to re-enter data.  
Except when clearing the RTC RAM, never remove the jumper caps on default  
position. Removing the cap will cause system boot failure!  
CLRTC1  
A7N8X-LA/Focus  
1 2  
2 3  
Normal  
Clear CMOS  
A7N8X-LA/Focus  
Clear RTC RAM  
(Default)  
6
ASUS A7N8X-LA (Focus) Motherboard  
2. Clear Password (3-pin J11)  
This jumper allows you to clear the password in CMOS. To erase the Password  
move the jumper cap from pins 1-2 (Default) to pins 2-3 (Clear Password).  
Keep the cap on pins 2-3 for about 5~10 seconds, then move the cap back to  
pins 1-2. Plug the power cord and turn ON the computer. Hold down the <Del>  
key during the boot process and enter BIOS setup to re-enter data.  
J11  
1 2  
2 3  
A7N8X-LA/Focus  
Normal  
Clear Password  
(Default)  
A7N8X-LA/Focus  
Clear Password Setting  
ASUS A7N8X-LA (Focus) Motherboard  
7
6. Connectors  
This section describes and illustrates the internal connectors on the motherboard.  
1. 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).  
FLOPPY1  
NOTE: Orient the red markings on  
the floppy ribbon cable to PIN 1  
A7N8X-LA/Focus  
PIN 1  
A7N8X-LA/Focus  
Floppy Disk Drive Connector  
2. ATX power connectors (20-pin ATXPWR1)  
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.  
ATXPWR1  
+12.0VDC  
+5VSB  
PWR_OK  
COM  
+5.0VDC  
+5.0VDC  
-5.0VDC  
COM  
+5.0VDC  
COM  
COM  
COM  
A7N8X-LA/Focus  
+5.0VDC  
COM  
PS_ON#  
COM  
+3.3VDC  
+3.3VDC  
-12.0VDC  
+3.3VDC  
A7N8X-LA/Focus  
ATX Power Connector  
8
ASUS A7N8X-LA (Focus) Motherboard  
3. IDE connectors (40-1 pin IDE1, IDE2)  
This connector supports the provided UltraDMA100/66/33 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  
UltraDMA100/66/33 slave device (hard disk drive) and the black connector to the  
UltraDMA100/66/33 master device. It is recommended that you connect non-  
UltraDMA100/66/33 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  
UltraDMA100/66/33 devices, purchase another UltraDMA100/66/33 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 UltraDMA100/66/33 cable is  
intentional.  
NOTE: Orient the red markings  
(usually zigzag) on the IDE  
ribbon cable to PIN 1.  
A7N8X-LA/Focus  
PIN 1  
A7N8X-LA/Focus  
IDE Connectors  
ASUS A7N8X-LA (Focus) Motherboard  
9
4. CPU and Chassis Fan Connectors (3-pin CPU_FAN1, CHA_FAN1)  
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_FAN1  
A7N8X-LA/Focus  
CHA_FAN1  
A7N8X-LA/Focus  
12-Volt Cooling Fan Power  
5. Internal audio connectors (4-pin CD1, AUX1)  
These connectors allow you to receive stereo audio input from sound sources  
such as a CD-ROM, TV tuner, or MPEG card.  
CD1 (Black) AUX1 (White)  
A7N8X-LA/Focus  
A7N8X-LA/Focus  
Internal Audio Connectors  
10  
ASUS A7N8X-LA (Focus) Motherboard  
6. USB headers (10-1 pin USB56)  
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.  
The USB module is purchased separately.  
A7N8X-LA/Focus  
USB56  
1
A7N8X-LA/Focus  
USB 2.0 Header  
7. IEEE 1394 connector (10-1 pin IEEE1394_1)  
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!  
IEEE1394_1  
A7N8X-LA/Focus  
1
A7N8X-LA/Focus  
IEEE-1394 Connectors  
ASUS A7N8X-LA (Focus) Motherboard  
11  
8. Front headphone connector (5-pin HJACK1)  
This connector is for a chassis-mounted front panel headphone jack.  
HJACK1  
A7N8X-LA/Focus  
1
A7N8X-LA/Focus  
Front HeadPhone Header Connector  
9. Front microphone connector (3-pin FP_MIC1)  
This connector is for a chassis-mounted front panel microphone jack. Use a  
3-pin audio cable to connect the microphone jack to this connector.  
FP_MIC1  
A7N8X-LA/Focus  
A7N8X-LA/Focus  
Front Microphone Connector  
12  
ASUS A7N8X-LA (Focus) Motherboard  
10. Digital audio connector (3-pin ASPDIF1)  
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.  
ASPDIF1  
A7N8X-LA/Focus  
A7N8X-LA/Focus  
Digital Audio Interface  
ASUS A7N8X-LA (Focus) Motherboard  
13  
11. System panel connector (10-pin HPANEL)  
This connector accommodates several system front panel functions.  
ATX Power  
Switch*  
Power LED  
HPANEL  
A7N8X-LA/Focus  
HDLED Reset SW  
A7N8X-LA/Focus  
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 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.  
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 A7N8X-LA (Focus) Motherboard  

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