Oh, jason I saw that you are running with hyperthreading off, only the 4 actual cores. I can do 20x200 and 4.2ghz on turbo mode also stable. If I turn HT on, then thats a different story....I can do 4.025GHZ with HT on. The funny thing is everything runs way faster with HT turned off!! I got 27000 3dmark 06 points with HT turned off and 25000 with it turned on!! Weird.......