Hey, I have an Asus P5K pro MB and I am attempting to overclock a q6600 to 3Ghz. I used the stickied guide for overclocking quadcores to do this. One thing it says in the guide is to leave the voltage on auto and then use cpu-z to figure out the voltage. The only problem was that I could not get into windows, there was a short BSOD followed by a restart. I eventually upped the voltage to 1.30 and got into windows, where I checked out cpu-z which showed 1.28v (which I am assuming is the vdroop). I started Prime95 and it bsod and restarted immediatly. Right now it is sitting at 1.35-1.36 (1.32 in cpu-z) after multiple attempts. The error I keep getting in Prime is "FATAL ERROR: rounding got .5 expected .4", something along those lines. Right now only one core experiences this (others did but was corrected when I upped vcore). So my question is: why is my voltage so high (for my oc), lots of things I have been reading say 1.2x is good enough for 3ghz? My temps are at 50c at load, 33c idol. I can play games and do all my computer needs just fine also.

Some other things: I did not change voltages for North or South, as I have not seen them in to many overclocking guides and dont really know what they do. My ram timings are 5-5-5-15 rated for 1.8-1.9 (1.84 currently...I increased this to 1.9 [to attempt to correct "fatal error"] and got a bsod).

The vcore and temps seem perfectly safe albeit a bit abnormal from what I have read, what do you guys think?

Thanks.

u might have a chip with high VID or just a dud chip.

got my own q6600 @ 3.0 ghz (333x9) with 1.28125 vcore.