Thanks Polar Bear, Crystal clear, I was confused with the fsb (QDR) = 1333 which makes sense. CPU clock in AI bios is 333 = 333x4 = 1333fsb(QDR) or 333 x 9 for 3ghz cpu clock speed. You also explained why my multiplier is locked. I'm good to go now. I want a modest overclock where I don't have to do much with voltages. I will wait for a faster processor when the prices drop a bit. Thanks West side for the memory timings, they worked with no modifications to voltages necessary. Guess I could push them a bit since I am not going as high as you did with the frequency. The guides are a great help.