Quote Originally Posted by BND|MOD View Post
now i probe



For 600 FSB doesn-t work :s

But for 4Ghz 4.1-4.2-4.3-4.4-4.5 Ghz this setting work
BND: It is likely that the board is changing the FSB Strap once you hit 600. I'd recommend to see which FSB strap is active and stable below 600 and then set this strap manually. Just guessing...I remember on the P5B Deluxe when people were getting to FSB 400 it all got stable but from 366-399 there was a stability hole...