Abit SG 80DC User Manual

SG-80DC  
Motherboard  
Intel Pentium 4  
Socket 775  
Installation Instruction  
Contents  
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iii  
1. Introduction  
1.1 Features & Specifications  
CPU  
LGA775 Socket for Intel® Pentium D/ Pentium 4/ Celeron Processors with 800/533  
MHz FSB  
Compatible with Intel® P4-05A processors  
Supports Intel® Hyper-Threading / XD-bit / EM64T Technology  
Chipset  
Northbridge: SIS 661FX  
Southbridge: SIS 964  
Memory  
Two 184-pin DIMM slots  
Supports DDR 400 Un-buffered Non-ECC memory  
Supports maximum memory capacity up to 2GB  
Graphics  
Integrated SIS Mirage Graphics GPU high performance 256-bit 3D engine and 2D  
Accelerator  
Serial ATA  
2x SATA 1.5Gb/s Supports SATA RAID 0, RAID 1  
LAN  
Onboard 10/100M PHY  
Audio  
Onboard 5.1 channels Audio CODEC  
Expansion Slots  
1x AGP 8X slot  
3x PCI slots  
Internal I/O Connectors  
1x Floppy port  
1x UDMA 133/100/66/33 connector  
2x SATA 1.5Gb/s connectors  
2x USB 2.0 headers  
1x AUDIO1 header  
1x CD_IN header  
Rear Panel I/O  
1x PS/2 Mouse connector  
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1x PS/2 Keyboard connector  
1x Serial Port  
1x Parallel Port  
1x VGA connector  
4x USB 2.0 connectors  
1x RJ-45 LAN Connector  
1x Audio connector (Line-out, Line-in, MIC-in)  
Miscellaneous  
ATX form factor (244mm x 244mm)  
Specifications and information contained herein are subject to change without  
notice.  
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1.2 Motherboard Layout  
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2. Hardware Setup  
In this chapter we will elaborate all the information you need upon installing this motherboard  
to your computer system.  
Always power off the computer and unplug the AC power cord before adding or  
removing any peripheral or component. Failing to so may cause severe damage  
to your motherboard and/or peripherals. Plug in the AC power cord only after  
you have carefully checked everything.  
2.1 Choosing a Computer Chassis  
This motherboard carries an mATX form factor of 244 x 244 mm. Choose a chassis big  
enough to install this motherboard.  
As some features for this motherboard are implemented by cabling connectors on the  
motherboard to indicators and switches or buttons on the chassis, make sure your chassis  
supports all the features required.  
If there is possibility of adopting some more hard drives, make sure your chassis has  
sufficient power and space for them.  
Most chassis have alternatives for I/O shield located at the rear panel. Make sure the I/O  
shield of the chassis matches the I/O port configuration of this motherboard. You can find  
an I/O shield specifically designed for this motherboard in its package.  
2.2 Installing Motherboard  
Most computer chassis have a base with  
many mounting holes to allow the  
motherboard to be securely attached, and at  
the same time, prevent the system from  
short circuits. There are two ways to attach  
the motherboard to the chassis base:  
1. use studs, or  
2. use spacers  
In principle, the best way to attach the board  
is to use studs. Only if you are unable to do  
this should you attach the board with spacers.  
Line up the holes on the board with the mounting holes on the chassis. If the holes line up and  
there are screw holes, you can attach the board with studs. If the holes line up and there are  
only slots, you can only attach with spacers. Take the tip of the spacers and insert them into  
the slots. After doing this to all the slots, you can slide the board into position aligned with slots.  
After the board has been positioned, check to make sure everything is OK before putting the  
chassis back on.  
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To install this motherboard:  
1. Locate all the screw holes on  
the motherboard and the  
chassis base.  
2. Place all the studs or spacers  
needed on the chassis base  
and have them tightened.  
3. Face the motherboard’s I/O  
ports toward the chassis’s rear  
panel.  
4. Line up all the motherboard’s  
screw holes with those studs or  
spacers on the chassis.  
5. Install the motherboard with  
screws  
tightened.  
and  
have  
them  
To prevent shorting the PCB circuit, please REMOVE the metal studs or spacers if  
they are already fastened on the chassis base and are without mounting-holes  
on the motherboard to align with.  
2.3 Checking Jumper Settings  
For a 2-pin jumper, plug the jumper cap on both pins will make it CLOSE (SHORT). Remove the  
jumper cap, or plug it on either pin (reserved for future use) will leave it at OPEN position.  
SHORT  
OPEN  
OPEN  
For 3-pin jumper, pin 1~2 or pin 2~3 can be shorted by plugging the jumper cap in.  
Pin 1~2 SHORT  
Pin 2~3 SHORT  
2-2  
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2.3.1 CMOS Memory Clearing Header and Backup Battery  
The time to clear the CMOS memory occurs when (a) the CMOS data becomes corrupted, (b)  
you forgot the supervisor or user password preset in the BIOS menu, (c) you are unable to  
boot-up the system because the CPU ratio/clock was incorrectly set in the BIOS menu.  
This header uses a jumper cap to clear the CMOS memory and have it reconfigured to the  
default values stored in BIOS.  
Pins 2 and 3 shorted (default): Normal operation.  
Pins 1 and 2 shorted: Clear CMOS memory.  
To clear the CMOS memory and load in the default values:  
1. Power off the system.  
2. Set pin 1 and pin 2 shorted by the jumper cap. Wait for a few seconds. Set the jumper cap  
back to its default settings --- pin 2 and pin 3 shorted.  
3. Power on the system.  
4. For incorrect CPU ratio/clock settings in the BIOS, press <Del> key to enter the BIOS setup  
menu right after powering on system.  
5. Set the CPU operating speed back to its default or an appropriate value.  
6. Save and exit the BIOS setup menu.  
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CMOS Backup Battery:  
An onboard battery saves the CMOS memory to keep the BIOS information stays on even after  
disconnected your system with power source. Nevertheless, this backup battery exhausts after  
some five years. Once the error message like “CMOS BATTERY HAS FAILED” or “CMOS  
checksum error” displays on monitor, this backup battery is no longer functional and has to  
be renewed.  
To renew the backup battery:  
1. Power off the system and disconnect with AC power source.  
2. Remove the exhausted battery.  
3. Insert a new CR2032 or equivalent battery. Pay attention to its polarity. The “+” side is its  
positive polarity.  
4. Connect AC power source and power on the system.  
5. Enter the BIOS setup menu. Reconfigure the setup parameters if necessary.  
CAUTION:  
Danger of explosion may arise if the battery is incorrectly renewed.  
Renew only with the same or equivalent type recommended by the battery  
manufacturer.  
Dispose of used batteries according to the battery manufacturer’s instructions.  
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2.4 Connecting Chassis Components  
2.4.1 ATX Power Connectors  
These connectors provide the connection from an ATX power supply. As the plugs from the  
power supply fit in only one orientation, find the correct one and push firmly down into these  
connectors.  
2.4.2 FAN Power Connectors  
These connectors each provide power to the cooling fans installed in your system.  
CPU_FAN: Power connector for CPU cooling fan  
SYS_FAN: System Fan Power Connector  
PWR_FAN: Auxiliary Fan Power Connector  
These fan connectors are not jumpers. DO NOT place jumper caps on these  
connectors.  
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2.4.3 Front Panel Switches & Indicators Headers  
This header is used for connecting switches and LED indicators on the chassis front panel.  
Watch the power LED pin position and orientation. The mark “+” align to the pin in the figure  
below stands for positive polarity for the LED connection. Please pay attention to connect these  
headers. A wrong orientation will only cause the LED not lighting, but a wrong connection of  
the switches could cause system malfunction.  
Pin  
1
Definition  
HD LED +  
HD LED -  
RESET  
Pin  
2
Definition  
Message LED +  
Message LED -  
Power Switch  
Power Switch  
3
4
5
6
7
RESET  
8
9
Reserved  
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2.5 Installing Hardware  
DO NOT scratch the motherboard when installing hardware. An accidentally  
tiny surface-mount component may seriously damage the  
scratch of  
motherboard.  
a
In order to protect the contact pins, please pay attention to these notices:  
1. A maximum 20 cycles of CPU installation is recommended.  
2. Never touch the contact pins with fingers or any object.  
3. Always put on the cap when the CPU is not in use.  
2.5.1 CPU Socket 775  
1. Place the board so as to let the  
lever-hook of the socket is on your left  
side. Use your left thumb and forefinger  
to hold the lever hook, pull it away from  
the retention tab. Rotate the lever to  
fully open position.  
2. Use your right thumb on the  
bottom-right side of the load plate and  
lift it up to fully open position.  
3. Use your right thumb and forefinger to  
grasp the CPU package. Be sure to  
grasp on the edge of the substrate, and  
face the Pin-1 indicator toward the  
bottom-left side. Aim at the socket and  
place the CPU package vertical down  
into the socket.  
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4. Visually inspect if the CPU is seated well  
into the socket. The alignment key must  
be located in the notch of package.  
5. Use your left hand to hold the load  
plate, and use your right thumb to peel  
the cap off.  
The cap plays an important role in  
protecting contact pins. In order to  
prevent bent pin, PUT ON the cap  
after operation or testing.  
6. Lower the plate onto the CPU package.  
Engage the load lever while gently  
pressing down the load plate.  
7. Secure the lever with the hook under  
retention tab.  
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8. Place the heatsink and fan assembly  
onto the socket. Align the four fasteners  
toward the four mounting holes on the  
motherboard.  
9. Press each of the four fasteners down  
into the mounting holes. Rotate the  
fastener clock-wise to lock the heatsink  
and fan assembly into position.  
10. Attach the four-pin power plug from the  
heatsink and fan assembly to the CPU  
FAN connector.  
The installation procedures vary with different types of CPU fan-and-heatsink  
assembly. The one shown here is served for demo only. For detailed information  
on how to install the one you bought, refer to its installation guidelines.  
A higher fan speed will be helpful for better airflow and heat-dissipation.  
Nevertheless, stay alert to touch any heatsink since the high temperature  
generated by the working system is still possible.  
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2.5.2 DDR Memory Slots  
This motherboard provides two 184-pin DDR DIMM slots for un-buffered and non-ECC modules,  
memory size expansible up to 2GB (DDR400).  
DIMM  
DIMM Module  
256MB, 512MB, 1GB  
Total Memory  
256MB ~ 1GB  
256MB ~ 1GB  
256MB ~ 2GB  
1
2
256MB, 512MB, 1GB  
Total System Memory  
Power off the computer and unplug the AC power cord before installing or removing memory  
modules.  
1. Locate the DIMM slot on the board.  
2. Hold two edges of the DIMM module  
carefully, keep away of touching its  
connectors.  
3. Align the notch key on the module with  
the rib on the slot.  
4. Firmly press the module into the slots  
until the ejector tabs at both sides of the  
slot automatically snaps into the mounting notch. Do not force the DIMM module in with  
extra force as the DIMM module only fit in one direction.  
5. To remove the DIMM modules, push the two ejector tabs on the slot outward  
simultaneously, and then pull out the DIMM module.  
Static electricity can damage the electronic components of the computer or  
optional boards. Before starting these procedures, ensure that you are  
discharged of static electricity by touching a grounded metal object briefly.  
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2.5.3 Floppy and IDE Disk Drive Connectors  
The FDD connector connects up to two floppy drives with a 34-wire, 2-connector floppy cable.  
Connect the single end at the longer length of ribbon cable to the FDD on the board, the two  
connectors on the other end to the floppy disk drives connector. Generally you need only one  
floppy disk drive in your system.  
The red line on the ribbon cable must be aligned with pin-1 on both the FDD port  
and the floppy connector.  
Each of the IDE port connects up to two IDE drives  
at Ultra ATA/100 mode by one 40-pin, 80-conductor,  
and 3-connector Ultra ATA/66 ribbon cables.  
Connect the single end (blue connector) at the  
longer length of ribbon cable to the IDE port of this  
board, the other two ends (gray and black connector)  
at the shorter length of the ribbon cable to the  
connectors of your hard drives.  
Make sure to configure the “Master” and “Slave” relation before connecting two  
drives by one single ribbon cable. The red line on the ribbon cable must be  
aligned with pin-1 on both the IDE port and the hard-drive connector.  
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2.5.4 Serial ATA Connectors  
Each SATA connector serves as one single channel to connect one SATA device by a thin SATA  
cable.  
The disk array for RAID 0 or RAID 1 configuration is also provided through these SATA  
connectors.  
To connect SATA device:  
1. Attach either end of the signal cable to  
the SATA connector on motherboard.  
Attach the other end to SATA device.  
2. Attach the SATA power cable to the  
SATA device and connect the other end  
from the power supply.  
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2.5.5 Accelerated Graphics Port Slot  
This slot supports an optional AGP graphics card up to AGP 8X/4X mode.  
This motherboard does not support 3.3V AGP cards. Use only 1.5V or 0.8V AGP  
cards.  
2.5.6 PCI Add-on Slots  
These slots provide the connection of add-on cards that comply with PCI specifications.  
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2.6 Connecting Optional Devices  
2.6.1 Additional USB 2.0 Port Headers  
Besides the 4x USB 2.0 ports located at rear I/O part, this motherboard also features 2x more  
USB 2.0 headers onboard. Each header supports 2x additional USB 2.0 ports by connecting  
bracket or cable to the rear I/O panel or the front-mounted USB ports of your chassis.  
Pin  
1
Pin Assignment  
VCC  
Pin  
2
Pin Assignment  
VCC  
3
Data0 -  
4
Data1 -  
Data1 +  
Ground  
NC  
5
Data0 +  
Ground  
6
7
8
10  
Make sure the connecting cable bears the same pin assignment.  
2.6.2 Internal Audio Source Connector  
This connector connects to the audio output of internal CD-ROM drive or add-on card.  
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2.6.3 Front Panel Audio Connection Header  
This header provides the connection to audio connector at front panel.  
To use the audio connector at front panel, remove all the jumpers on this header, and then  
connect to front panel by the extension cable provided with the chassis.  
To use the audio connector at rear panel, disconnect the extension cable, attach the  
jumpers back at pin 5-6, and pin 9-10 (default setting).  
Pin Signal Name  
Function  
1
2
3
4
5
AUD_MIC  
Front Panel Microphone input signal  
Ground used by Analog Audio Circuits  
Microphone Power  
AUD_GND  
AUD_MIC_BIAS  
AUD_VCC Filtered  
AUD_F_R  
+5V used by Analog Audio Circuits  
Right Channel audio signal to Front Panel  
Right Channel Audio signal to Return from Front  
Panel  
6
AUD_RET_R  
7
8
9
REVD  
Reserved  
Key  
No Pin  
AUD_F_L  
Left Channel Audio signal to Front Panel  
Left Channel Audio signal to Return from Front  
Panel  
10  
AUD_RET_L  
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2.7 Connecting I/O Devices  
The rear I/O part of this motherboard provides the following I/O ports:  
Mouse: PS/2 mouse connector.  
Keyboard: PS/2 keyboard connector.  
LPT1: Parallel port connector.  
COM1: Serial port connector.  
VGA1: Monitor signal connector.  
USB1/USB2: USB 2.0 connectors.  
LAN1: 10/100Mbps LAN connector.  
AUDIO:  
Line In: Connects to the line out from external audio sources.  
Line Out: Connects to the front left and front right channel in the 5.1-channel or regular  
2-channel audio system.  
Mic In: Connects to the plug from external microphone.  
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3. BIOS Setup  
This motherboard provides a programmable EEPROM that you can update the BIOS utility. The  
BIOS (Basic Input/Output System) is a program that deals with the basic level of  
communication between processor and peripherals. Use the BIOS Setup program only when  
installing motherboard, reconfiguring system, or prompted to “Run Setup”. This chapter  
explains the Setup Utility of BIOS utility.  
After powering up the system, the BIOS message appears on the screen, the memory count  
begins, and then the following message appears on the screen:  
PRESS DEL TO ENTER SETUP  
If this message disappears before you respond, restart the system by pressing <Ctrl> + <Alt>  
+ <Del> keys, or by pressing the Reset button on computer chassis. Only when it failed by  
these two methods can you restart the system by powering it off and then back on.  
After pressing <Del> key, the main menu screen appears.  
In order to increase system stability and performance, our engineering staffs are  
constantly improving the BIOS menu. The BIOS setup screens and descriptions  
illustrated in this manual are for your reference only, and may not completely  
match with what you see on your screen.  
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4. Driver & Utility  
The “Driver & Utility CD” that came packed with this motherboard contains drivers, utilities and  
software applications required for its basic and advanced features.  
Place the “Driver & Utility CD” into the CD-ROM drive in your system. The following installation  
auto-run screen appears. If not, browse the root directory of the CD-ROM via the File Manager,  
and double click the “AUTORUN” file.  
[Drivers]: Click to enter the driver installation menu.  
[Manual]: Click to enter the user’s manual menu.  
[Utility]: Click to enter the utilities installation menu.  
[
[
Browse CD]: Click to browse the contents of this “Driver & Utility CD”.  
Close]: Click to exit this installation menu.  
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5. Appendix  
5.1 Troubleshooting (How to Get Technical Support?)  
5.1.1 Q & A  
Q: Do I need to clear the CMOS before I use a new motherboard to assemble my new computer  
system?  
A: Yes, we highly recommend that you clear the CMOS before installing a new motherboard. Please move  
the CMOS jumper from its default 2-3 position to 1-2 for a few seconds, and then back. When you boot  
up your system for the first time, follow the instructions in the user's manual to load the optimized  
defaults.  
Q: If my system hangs when I update the BIOS or set the wrong CPU parameters, what should  
I do?  
A: Whenever you update the BIOS or if the system hangs due to wrong CPU parameters setting, always  
clear CMOS jumper before booting up again.  
Q: Why does the system fail to boot up again right after a mechanical power-off?  
A: Please keep a 30-second interval between each mechanical power On/Off.  
Q: Why does the system fail to boot up and nothing displays on the screen after I did some  
over-clocking or non-standard settings inside the BIOS?  
A: It should not cause hardware or permanent damage to motherboard when BIOS settings were changed  
from default to over-clocking or non-standard status.  
We suggest the following three troubleshooting methods to discharge CMOS data, recover the hardware  
default status, and then making the motherboard work again. There is no need to bother returning the  
motherboard to where you bought it from or go through an RMA process.  
Step 1. Switch off the power supply unit and then switch it on again after one minute. If there is no  
power-switch on the power supply unit, disconnect its power cord for one minute and then reconnect.  
Press and hold the <Insert> key on the keyboard, and press the power-on button to boot up system. If  
it works, release the <Insert> key and hit <Del> key to enter the BIOS setup page to apply the correct  
settings.  
If the situation remains the same, repeat the procedures in Step 1 for three times, or try Step 2.  
Step 2. Switch off the power supply unit or disconnect the power cord. Open the chassis cover. Locate  
the CCMOS jumper near the button battery. Change the jumper position from default 2-3 to 1-2 for one  
minute to discharge the CMOS data, and then put it back to default 2-3 position.  
Close the chassis and switch on the power supply unit or plug in the power cord. Press the power-on  
button to boot up system. If it works, hit <Del> key to enter the BIOS setup page to do the correct  
settings.  
If the situation remains the same, try Step 3.  
Step 3. The same procedure as Step 2, but while discharging the CMOS data, pull out the ATX power  
connectors from motherboard and remove the button battery during CMOS discharge.  
Q: How to get a quick response for my request on technical support?  
A: Please carry out a simple troubleshooting before sending “Technical Support Form”:  
System boot-up fails after the system had been assembled:  
Check the motherboard’s supporting specifications first to see if all the key components attached in your  
system can meet.  
To do so, you may:  
Remove all the unnecessary add-on devices (except the CPU, VGA card, DRAM, and Power Supply),  
and then reboot.  
If the trouble still exists, try another VGA card of different brand/model to see if the system will  
start.  
If the trouble still exists, try another memory module of different brand/model.  
If the trouble still exists, try another CPU and Power Supply.  
If the system runs successfully, shut it down and start re-installing the interface cards and devices that  
were previously installed in the system. Re-install and start the system one at a time until the system  
won’t start.  
Malfunction in the OS:  
If the system hangs after resuming from S3 or some testing program, if the CPU cannot be recognized  
properly, if the display resolution mixed, or if a certain program cannot be executed, etc, you may:  
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Upgrade the motherboard’s latest BIOS version.  
Upgrade the add-on device’s latest driver version.  
Check if there is any conflict in the “Control Panel/System Properties”.  
Q: How to fill in the “Technical Support Form”?  
A: To fill in this “Technical Support Form”, please refer to the following instructions:  
Region: Type in your country name.  
E-mail: Type in your contact E-mail information.  
First name: Type in your first name.  
Last name: Type in your last name.  
Subject: Type in the model name and the problem of your motherboard.  
Example 1: AA8XE and SCSI 29160 malfunction  
Example 2: AA8XE boot fails, POST code AF  
Example 3: AA8XE (system hang when S3 resume)  
Motherboard: Type in the model name and revision number of your motherboard.  
Example: AA8XE REV: 1.00  
BIOS Version: Type in the BIOS version of your motherboard. (You can find it on the screen  
during the POST sequence.)  
CPU: Type in the brand name and the speed (MHz) of your CPU. (Illustrate the over-clocking status  
if you had done so.)  
Example: Intel 650 3.4GHz (OC FSB=220MHz)  
Memory brand: Type in the brand and model name of your memory module.  
Example: Memory brand: Kingston (KVR533D2N4/1G)  
Memory size: Type in the size of your memory module.  
Example: 512M* 4PCS  
Memory configuration: Type in the memory configuration in BIOS setting.  
Example: Memory Timing: 2.5-3-3-7 @533MHz  
Graphics information: Note Graphics card’s brand, model and driver version  
Graphics card: Type in the brand and model name of your graphics card.  
Example: ATI RADEON X850 XT PE  
Graphics driver version: Type in the driver version of your graphics card  
Example: Catalyst 5.12V  
Power supply maker: Type in the brand and model name of your power supply unit.  
Power supply wattage: Type in the power wattage of your power supply unit.  
Storage devices: Type in the brand and specifications of your HDD drive and quantity. Specify if it  
was inserted on IDE (Master or Slave) or SATA ports, including the RAID allocation status.  
Example 1: WD Caviar WD600 60GB (on IDE2 master), Maxtor DiamondMax 10 SATA 300GB (on  
SATA 3)  
Example 2: Maxtor DiamondMax 10 SATA 300GB *2 (on SATA 3, SATA 4 RAID 1)  
Optical devices: Type in the brand and specifications of your optical drives and quantity. Specify if  
it was inserted on IDE (Master or Slave) or SATA ports.  
Other devices: Indicate which add-on cards or USB devices that you absolutely sure are related to  
the problem. If you cannot identify the problem’s origin, indicate all the add-on cards or USB devices  
inserted on your system.  
Example: AHA 29160 (on PCI 2), Sandisk Cruzer mini 256MB USB Flash-disk.  
Operating system: Indicate which OS and language version  
Example: Microsoft Windows XP SP2, English version  
Example: Microsoft Media Center Edition 2005, Korean version  
Problem description: Describe the problem of your system configuration. Indicate the steps to  
duplicate problem if possible.  
See the next page for a blank Technical Support Form, or visit our website to fill in the form on line  
Q. Is the motherboard dead? Do I need to return it to where I bought from or go through an  
RMA process?  
A: After you had gone through the troubleshooting procedures, yet the problem still exists, or you find an  
evident damage on the motherboard. Please contact our RMA center.  
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5.1.2 Technical Support Form  
Country:  
First name:  
Last Name:  
Subject:  
Motherboard:  
BIOS Version:  
CPU:  
Memory brand:  
Memory size:  
Memory configuration:  
Graphics card:  
Graphics driver version:  
Power supply maker:  
Power supply wattage:  
Storage devices:  
Optical devices:  
Other devices:  
Operating system:  
Problem description:  
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ABIT Computer Corporation  
Rev. 1.00  

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