Man, i'm havin a hellova time getttin my Q9450 stable @4.0... It seems that the bios "lacks" the fine tuning adjustments for runnin a quad anywere near the "4.0" mark..... I was thinkin of gettin a Giga P45, but i've got too much damn $$$ wraped up in all the Asus stuff i've got...... Your 9650 oughta be a bit easier with the 9x multi, but like i said, its the "fine tuning" thats gonna make it, or break it.....