Hi guys. I have this board and a Phenom II X4 965, and the highest prime95-stable OC I can get is 3.94 GHz. Increasing it to 3.96 causes reboot after just a few minutes of prime95. Is this sudden transition from stable to unstable common, and is there anything to do about it? It would be nice to have a stable 4 GHz OC.

I also can't seem to get my NB higher than 2.6 GHz, even though I've tried raising voltages all across the board.