Quote Originally Posted by sesdave View Post
You probably want more vcore to get higher than your current settung. About 1.45 -1.5 for 390-400 FSB. You only need to try increase MCH if you cant post or get stable. I would recheck you heatsink mounting - Ifrom what I have read you should get much lower load temps than that with the ultra extreme - I was going to get one but I wont bother if you have it mounted okay! and thats the best it can do!!!!.
I was also expecting better performance from this HS. You won't believe the number of times I've reseated it though. Even though I can remove the motherboard tray, with the HS installed it won't slide back in (hs too tall).

There seems to be no difference in cooling performace with the attached fan at high and low speeds which seems a little odd. The base is always cool to the touch also (even under load).

I guess I may have to consider lapping.