who wouldnt want speedstep or C1E enabled? Do you like your energy bill? It doesnt make a difference in performance whatsoever anyway. I overclock to 3.6ghz.... due to the games I play I see no need for 4.5ghz, I did it once for a benchmark and was satisfied and want to keep this puppy so I overclock 1600mhz fsb and 1.225v in bios and 1.2 cpuid. I think that's pretty good... what do you all think?