I was playing a game and the computer seemed to restart but the keyboard/mouse didn't turn off and was still tracking movement (monitor went into sleep mode for not having an input. Forced a restart and now the cpu doesn't seem to turn on and there is no post sound, graphic cards turn on and the normal lights turn on but still no post or cpu activity.

I removed the spu heatsink and everything seems in check, no burns or smells.

my guess woul dbe the cpu isn't receiving power but all the cables check out.

I build this comp about 2 years ago, would have to dredge up model names for anything specific, but it has 2 sli'd 470s, 1000watt antec ps, evga classified mobo, i7 bloomfield at 2.8ghz. nothing was overclocked.