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Anyone hot flash a bios ?


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Hi , I have a ABIT SG-72 socket 478 motherboard that's been sitting idle since the day I bought it and the thing would not fire up . I tried different speed cpu's and single and double sided ram to see if there was some sort of incompatibility problem but still no luck.

 

This thing will not boot up , the cpu fan works so its getting some power but I get a black screen from the monitor, have tried resetting cmos and removing battery but still nothing . Just wanted to ask if anyone does bios reprogramming or can hot flash the chip otherwise its going in the bin :( .

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just a guess but I'd first try swapping the power supply and change the cmos battery. if the motherboard speaker is connected you may get some clues from the POST beeping to what may be wrong. from there swap the memory just use one in the first slot - mem has to be compatible. sometimes ive had a touchy video card fitting. check nothing is earthing underneath the motherboard.
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If it has onboard video - try putting a seperate video card in and see if you get anything.

 

I have performed a hotflash before, it is a very risky and dodgy thing to do, but we were desperate and had little to lose.

 

These days the bios is usually an AT29C010 flash, which many eprom progammers support.

 

I really doubt it is the flash unless you were performing a bios upgrade and something went wrong though. Very rarely indeed is it the part that will fail on a motherboard.

 

+1 on flat cmos battery - it can cause all kinds of weirdness

+1 on hooking up the mobo speaker too

 

Cheers

Jacob

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yeah and the power switch lol

 

minimum board configuration is:

1 x memory - check in spec for motherboard, check in 1st slot.

1 x video + monitor

1 x power (some boards have two power connectors)

1 x cmos battery $2-3 new

 

unplug everything else

swap with known working and test

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I will give all those suggestions a try . I have a 3ghz northwood with 800fsb which is the only variant I have not tried , previously tried a 400fsb and a 533fsb cpu . I cant remember if I tried a single unit of double sided memory of if I tried a matched pair so another avenue to explore . I know I tried a single high density and it did nothing .

 

I had bought this a number of years back with a celeron D cpu and later sold the cpu which was working but the motherboard was never booting so I kept it . I have tried with and without a video card ,dont know if one brand is better than the next with that .

 

I havent tried flashing this board as I was never able to get it to boot to floppy . The battery on this board stands on its side which is unusual from what Ive seen before , currently does not have one in it and Im going to have to look up some info to make sure I put it in the right way lol .

 

I will hook up the minimum cables to start the thing just in case its the reset and try the speaker for sound . I read something similar to my problems for the same board on the net and its sounds like its a flaky sort of board with bad compatibility with other parts .

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