Question about Abit SG-72 Motherboard

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Working SG-72 MOBOs failing 1 by 1, no POST after BSOD, just fans

I own 12 motherboards of this kind, I got them assembled and working, could install windows XP and used them for a while, suddenly, one by one failed, usually with XP "blue screens of dead" (BSOD) with a hardware error message, then CPU's would never restart again, there is no POST, no turn on signal to standby monitor (black screen), no beeps, no hard disk activity, just power supply and microprocessor fans working.

Initially I thought this was caused by a power supply failure, faulty memory, microprocessor, dust, on board video failure, etc. now, after testing everything I think BIOS has failed, I don't know the reason, but I guess this might have been caused by virus attacks.

If anyone knows a way to confirm and fix this, I will appreciate your comments.

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Test the cpus in other machines. if your not getting any boot or beeps, then it is the bios or cpu.

Posted on Jul 04, 2009

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1 Answer

Abit sg-72 mother board the computer turn it self off when i try to install win the computor was runing linux if you try to used the cd rom it will turn off some times the computer will turn off after a...


Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your "((MOTHERBOARD TO YOUR HARD DRIVE))" make sure they have a secure connection and are not faulty or just replace them they could be faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they could be faulty a computer needs its connections to continue its cycle and have an end so any faulty leads will end up with a computer error even something as small as a faulty electrical extension or fan lead can cause this problem hope this helps

follow the troubleshooting procedure a computer needs all of the data and electrical current to travel through every device and to have an end to be able work properly

a motherboard and a hard drive any leads between them will fail before your motherboard or your hard drive if its a flat ribbon 40 pin type IDE replace it this will be the first to fail check all electrical extensions make sure they are securely seated even the cd/dvd floppy drives need to have current go through make sure these drives are working

hope this helps

also it could be a dirty computer clean all of the dust from your computer you could use a vacuum cleaner but whatever you use make absolutely sure there is no moisture gets to anything in your computer

hope this helps

Jun 25, 2011 | Abit SG-72 Motherboard

1 Answer

I have 2 Asus P5N32-SLI Premium mobos, both have the same problem! each powers up, i have lights, hdd power, fans are working, but they will not post or beep! i wonder if its a bios chip problem?


Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your "((motherboard to your hard drive))" make sure they have a secure connection and are not faulty or just replace them they could be faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they could be faulty a computer needs its connections to continue its cycle and have an end so any faulty leads will end up with a computer error hope this helps

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I have trouble with my SG-72 board. I clean the CMOS. Now I can't see the screen and there are a long beep and two short beep.


see to it that your VGA card if you have or SOUND card or LAN card is seated properly. Then check also your memory card are seated properly...

good luck

Feb 26, 2011 | Abit SG-72 Motherboard

1 Answer

I got trouble on the BIOS setting of my Abit SG-72 board. I reset CMOS and then I can't boot anymore(No screen). There are a long beep, two short beep. Why?


You could try removing the video card and re-seating it. It looks like a video problem.
Try reset bios by jumpers.

If this helps orsolves the issue, please rate it and give a testimonial for myresponse.

Feb 26, 2011 | Abit SG-72 Motherboard

1 Answer

My pc does not display POST BIOS... when i switch it on.. no beeps sound wen i on it..


That's a really nice motherboard. I've had ASUS mobos for 5 years now.

When there are no beeps, that usually means that you've been upgrading the system and something isn't plugged in exactly right.

I take it the fans come on and stay on, you just don't get beyond that.

If you upgraded a PCI or AGP adapter, please power off the machine and reseat it firmly in the motherboard. Same with memory chips.

If you've replaced your power supply, make sure that the ATX plug is also inserted in the right socket of your motherboard.

If you've done no maintenance, then it could be dust... vacuum carefully.

If that doesn't restore your system to working condition, then you might need to follow the procedures to reset your BIOS in section 1.9 of the manual "Jumpers" Item 1 - CLRTC on page 1-21 of your manual.

The manual is also available online (english edition)

Good luck.

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this is not a hardware related issue. please verify the sharing and security settings of the folder/drive on SG-72

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BSOD at start of Windows XP Setup


try F8 to got to the startup menu, and choose last known good configuration, use a ps2 keyboard or an adaptor and nothing that needs the USB.SYS Driver to function, and you should be able to reinstall Windows, if last known good configuration doesn't work, i hope this helps, please give good rating

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Perdi el disco de drivers de la tarjeta Abit SG-72


Bajalos del website de ellos, problema resuelto.

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