Thank you alot saaya! This is going to work for me. I was with a really simple configuration for my Q9550, yesterday I took it off and put a PIV 631 in the BlackOps, and now is a pain for my ass to get that config.

PD: I'm having problems to get to 310 FSB with the 631, indeed, is rock solid in 4500Mhz with less than 1.325v, but when I reach 310Fsb, not matter what config I place in the Bios, it will not reach Windows, and when using SetFSB is the same, 310fsb and BSOD. Can you give me a hand or at least some tips for this mother?