hey everyone, i dont quite understand the voltage thing but here's what ive done so far. i used nvidia control panel to overclock my cpu from stock 2.5GHz (Q9300 with multiplier of 7.5x) to 2.7GHz. and its running at 2.7GHz because thats what cpu-z says. i trust that cpu-z doesnt lie. it mustn't because 3dmark vantage rates my internal cpu clock at 2.7GHz also. but my question is a voltage of 1.238 good for this overclock? my pc is running fine, a little faster. is there any way to test the stability of this overclock? i guess that the voltage only needs to be changed after i oc and my pc freezes right? then i would up the voltage. if that sounds right or wrong please let me know as to im very happy i overclocked for the first time and nothing went wrong. thanks to all who help in advanced