I have not overclocked at all as well.
here is the problem.
One day while installing the sp1 update for vista, the computer restarted itself. When it restarted it did have anything show up on the screen. I tried to restart the computer again, same problem. No bios, no system beeps, no nothing.
I tried repositioning the ram, reinstalling the cpu, clearing the cmos/bios, taking it out of sli, and basically everything
I think the problem lies with the motherboard somehow, but im not sure
ive tried all the sticks of ram alone, and none of them work, i have also tried switching the gpus and that did nothing, also resetting the processor, nothing, all it says on the mobo is c1 on the little display, which would refer to ram issues, but with 3 different sticks of ram, the chances of all of them being bad is very slim, right?