Its a corsair TX650W, 52A on a single 12V rail. I can run 3dmark and a few others at something like 2880 with 241HT but anything above that requires 1.5+ vcore.

This was the best I could do with 3dmark06 @ 3Ghz

http://service.futuremark.com/compare?3dm06=7272413

I'm really hoping that the new SB750 boards will help me get over the 2.8Ghz bump and past 3 Ghz with a reasonable vcore.