Gigabyte B85M DS3H reboots after a few seconds

Stoly

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Jul 26, 2005
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6,714
I have a mobo that boots, the fan spins for a few seconds and reboots. I timed anywhere from about 8 to 15 seconds.

If I keep it on, sometimes it posts for a few seconds and reboots and not post again for several times.

furthermore, every now and then it will post and run for hours completely stable until I turn it off or reboot.

I already baked it a couple of times but no change

Any ideas?, I know its old but I"d like to bring it back to life.
 

70 Polara

Limp Gawd
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Jul 31, 2004
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218
Ahhh......most likely the good 'ol Gigabyte boot loop problem.

Last one of these I dealt with on a friends Gigabyte B75M board, I followed this video and it worked!

Was investigating external flashing the board with a test clip and a USB CMOS flasher I have for all my retro computing needs, but the above video did the trick. Good luck.
 

auntjemima

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6,372
I have a mobo that boots, the fan spins for a few seconds and reboots. I timed anywhere from about 8 to 15 seconds.

If I keep it on, sometimes it posts for a few seconds and reboots and not post again for several times.

furthermore, every now and then it will post and run for hours completely stable until I turn it off or reboot.

I already baked it a couple of times but no change

Any ideas?, I know its old but I"d like to bring it back to life.
I had this same problem in an old 775 system. Turns out it was my power supply.
 

Stoly

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I had this same problem in an old 775 system. Turns out it was my power supply.
I tested the board with a PS from my main rig, same issue.

also tried diffent ram and even different CPU.

No visible physical damage, nothing seems burned.
 

Stoly

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stupid me it says dualbios right on the mobo Lol, anyway it didn't work
I tried shorting the pins, now it will cycle between a couple of seconds to about a minute. only post once a garbled bios screen, it rebooted before I could take a picture
 

Stoly

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btw I noticed the chipset heatsink gets much hotter than before.

So it seems it did something
 

70 Polara

Limp Gawd
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Bummer, unfortunately if it's not something else wrong with the board, your best bet would be an external EEPROM burner and a SOIC8 SOP8 test clip to flash the BIOS chips externally. I am aware of many people having to do that as a last ditch resort to get these trouble prone 'dual-BIOS' boards working again after they decide to crash and burn.

Something along the lines of the info here: https://www.win-raid.com/t4217f16-G...g-with-CH-A-possible-without-desoldering.html or here
 

Stoly

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unfortunately the chips are soldered
I used to do bios hot swap on my ABIT NFS-7. As it got corrupted if you overclocked too much.

I don"t have access to an eeprom programer but I think a friend of mine does.

so maybe there"s still hope
 
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