I've been running an Ivy Bridge i5 3570K in the truck for several months now. M2-ATX, Asus P8Z77 and everything runs like a champ. No issues at all. I checked pretty closely before I installed, and the highest power draw I ever saw was 105 watts for a couple of seconds under HEAVY load (encoding HD webcam while playing back HD video). Runs quite a bit cooler than the i5 Sandy Bridge that was in there before.