I just got a 2500k over a 3570k for overclocking. I can run it at 4.9GHz at 1.28v 2h prime stable (I didn't have much time to test..). Settings: - 1.4v vcore with level 5 LLC -> On full load goes down 1.28v - 1.2v vtt - 1.8v pll - 1.5v Vdram Temps below 60ºC The problem is reaching 5GHz, even with LLC off. Windows just freezes on boot. No bsod. Any suggestions?