Got my ac running full blast right now, gawd it's nice! Got my old es version 965x running at 3.84ghz, not sure if I'll get more at under 1.4v, poor old chip. At 3.84ghz I've got 1.312vcore, and 72c max core temp at 100% load like prime ect. I need 1.4+v to do 4ghz stable, so I figure early stepping, not going to do it.... Waiting for my 2nd x58 mobo to come, then I'll see what this puppy can do.