Yes there is a jumper for which BIOS version you want to use. The two sets are below the (first) PCI-E x16 slot. I don't see a real picture of the board yet. I am going to bet there is a jumper on the second block. The first block is the backup BIOS. Wonder if you can move the jumper to that one and see if it boots? You can see this on Page 7 of the manual. I didn't find where those were actually discussed! Maybe those are the chips and not jumper blocks? The manual says it is an Award BIOS! However I can't seem to find the "correct" instructions but you can try this I guess. Get the appropriate BIOS version from Gigabyte's website. There looks to be 3 different board revs, I will use the 3.0 in this example. But make sure you get the appropriate one for your rev. The rev should be printed on the board somewhere. Change the autoexec.bat file that comes with the update using this format: awdflash XXXXXXXX.BIN /py/sn/f/cc/r So the one I downloaded would look like this: flashpi 965pds4.f12 /py/sn/f/cc/r Curious how they say you can use this method to recover the BIOS, but if the system doesn't POST, I can't see why booting off a floppy disk would work! This could be why: Sorry, not linking to where quote came from. But if that special part is damaged, you can't do a floppy boot and looks like chip swaps are the only way to fix that case... or get new motherboard. HOWEVER, your symptoms of the system turning on and off like that is a common thing in 965 boards, at least Intel. The reason for it was that the board doesn't see the CPU and shuts off, but of course it turns back on to try again. You can try to reseat the CPU if you can as well. Considering the events that led to this problem of yours, I wouldn't be surprised if there wasn't a hardware failure on the system. Either there was a heat or voltage issue, a bad cap, etc.