Im having a heck of a time getting stable over 4.0ghz with a e8400/p5q-deluxe and a Thermalright ultra 120(non-extreme). My load temps are about 8C different between cores but the hot core never goes over 54C. Im running 1.3125V on the cpu. Ram is 1:1 with fsb which is 445x9. Any ideas how i can get over the 4ghz barrier?