Quote Originally Posted by Mark View Post
All of a sudden today my PC started to lose its video signal, then reboot at random. Its even doing this while I am in the bios settings, and when windows is loading. Sometimes right away, sometimes I can use my PC for hours.
My initial suspicion would be the VRAM. You have two 8800's in SLI, right? Try pulling one and see if you stabilize. If not, swap cards.