Guys, I think I finally broke my e8400. I had my VTT at 1.37v for a long time and recently I have lost any OC ability. I am running my e8400 at 8X333=2.6Ghz because if I leave everything at default my PC will shutdown and I lose video during the Windows splash screen. Its quite bizarre. I am actually not sure if its my DFI BloodIron, or my e8400?

Also, what is the difference between VTT and vcore? On this mobo all I can find is VTT and CPU VID Special ADD?