HPET stands for High Precision Event Timer. (http://en.wikipedia.org/wiki/High_Precision_Event_Timer) This requires changing a setting in the BIOS and Windows command prompt (CMD). Do this at your own risk. I recommend this to people who are comfortable changing a BIOS and Windows CMD setting. If your BIOS doesn't have an HPET option, then your hardware does not support HPET. The guy means run CMD as admin by the way. Just in case anyone got confused. If it's at 14 Mhz, then HPET is fully enabled. If like 3-4 Mhz, then it isn't enabled and Windows is still using the default timer(s). Me and my friend's results: My friend is able to play Black Ops II smoothly now. It somehow lagged on his i5 and HD 7850... And me? I don't stutter in Planetside 2 when entering new areas also somewhat better FPS, it's really smooth while flying around in my Mossie now. I've only tested this with Planetside 2 so far but overall very happy with the results of this 3 minute tweak.