I have a toshiba laptop with an amd turion x2 64 supposed to run at 1.8 ghz but only running at 800 mhz. i checked all power setting updated bios and looked at all settings there . I assume it is a driver issue for the PowerNow function of the chip but i cant find no fix for this and its really annoying that it has this problem cause i thought it was the new windows causeing the prob but vista had the same issue with this proccessor and thats the OS that came with this laptop. I had tried xp 64 in this and there was no problems with clock speeds but i couldnt find any drivers for this laptop for xp so im back to Win 7 which runs real sluggish considering it running at less then half speed.