If I was in your place I would run 425 x 9, also 3.82ghz and much easier to setup... and I think more durable in the long run... my Q6600 hit's a brick wall at 470-475 need to much voltage to get it stable... I would surely set ya PLL voltage by yourself as the baord really overvolts there, plz verify it asap as it could fry ya PCU