Quote Originally Posted by LasVegas View Post
Yes, I've always set that to standard. The flashing red warning was enough for me...


(Did you mean 1.325 BIOS, per your signature?)

The bios setting is 1.40V. At idle, "sensors" (the linux utility for reporting on hardware state) reports the cpu at 1.36V, I believe, although that's a bit of a guess (Its labeled "in0"). Under load it drops to 1.31V. A curious thing vdroop. Although having tested this now, idle is now 1.34V, and 1.31V under load. Perhaps I do have a bit of leeway to tweek the core voltage up a bit.

I would guess that RAM voltage, set to 2.0 in BIOS (+0.2V) is being reported as 1.95V. (labeled as "in1")

I'm never quite sure if things are being reported correctly, though...

I forgot to mention that I have a version 2.0 GA-P35-DS3R MB.

Added later: I've just tried 1.425 V and 9X366=3.3 GHz. That locked up under mprime in a few seconds. Too bad. I wonder if the OEM versions of the Q6600 overclock less than the boxed versions. The former perhaps being intended for computer makers who would not overclock, the latter intended for afficionados.
You might be a bit limited by your cooling. The ACF7 Pro was great back in K8 dual core days...but with the quads, something a little beefier would be more appropriate for high OCs. Watch your temps, and make sure your staying under 80C at load. I've run my Q6600 with up to 1.575V without problems (got me 8hrs prime95 stable at 3.85GHz) with "only" air cooling, so you still have plenty of headroom with your voltage....so long as your cooling is up to the task.

FYI - my "only" air cooling setup was at ambient temps around 8C and 110CFM blowing through my TRUE.