Yeah, i have been able to boot into windows from time to time
I've tried all 3 sticks of memory in all 3 grey slots, no difference.
I talked to EVGA tech support, and they told me it was probably a bad cpu, since i am able to use the computer for about 3 hours when i raise the VTT voltage high (around +225)
and im having the same problem. I shipped out my motherboard to get it replaced and when i got it back it worked for 30 min then started to do the same problem. called up Evga they said its a bad cpu. I shipped out my cpu, and just got it back. I just installed it and its the same F3/F6 68 reboot problem. Im really pissed off. Now do i send out my mother board again? I ve been computerless for about 3 months lol.
I have replaced the PSU with another UltaX4 1200. The first one was putting out 12.55v. EVGA said that was too high and may be causing the problem. So I exchanged it with another one that is nw putting out 12.33v. It is important to note that both meet the specs. PSU are allowed +/- 5% of documented voltage. ALL boards are built to this spec. After the second PSU failed I tried a Corsair TX750 PSU. It failed to correct the problem. I swapped out the memory with 3 more sticks of the Corsair RAM. It did not help. (memtest86+ test was fine). Then I swapped out the CPU thinking it was a bad memory controller on the CPU. At this point EVGA is totaly perplexed and told me I should bring it to a computer repair shop tio have another set of eyes look at it. I told them I've been mbuilding PC for 20 years and I know what I am doing. I've gone into the BIOS and manualy entered all of the RAM timing and voltages to apec. I even decreased the freq to 1333 thinking that would hlep and boosted the QPI slightly to the CPU in hopes the CPU would see the RAM. It did not. Iam on my 3rd RMA with this board. They tell me the Board I sent back specs out fine during thier internal testing. They are currenlty testing another board for me and will ship it wen they feel confidant this board will work. We will see. I betting it wont work.