Quote Originally Posted by fordf250 View Post
I have change from air to water and back with cpu,s from 2 diff mb,s and never seen a cpu need more volts when going from water to air so if your cpu is stable at 3.8G with 1.4V on water it will be stable at 1.4V at 3.8G on air it your heatsink can get that heat out. I ran the first q6600 I had at 3.8G and 1.725V for 68C 1hour OCCT on air. When I put it under water it did not clock any better and still needed the same volts just running 20C cooler.

The q6600 I have now in the same rig runs 4G at 1.55V and 51C all the time and runs 3.8G easy at 1.4V even at 475fsbx8 on 780i.
You and I are essentially saying the same thing. I was not implying that you needed water cooling for better overclocks. You need watercooling for 24x7 overclocks to get up to 4Ghz. When I see vcore between 1.55v-1.7v with water cooling, I know it's stable and will work. I admire watercooling but I'm too scared to try it. It takes a lot of expertise to do watercooling better than the best air cooling solution.

I just think 3.6Ghz is the sweetspot or the max overclock stable 24x7 with air. Mine will run 3.2Ghz at stock voltage as well.

We all have different motherboard but seem to be hitting the same wall regardless of motherboard. The P35's seem to handle the Q6600 the best.

Running at 1.5v or higher is a waste of energy and provides diminished returns. But this is extreme forums so the sky is the limit.

I'm looking forward to 45nm Quad Cores which should provide 4.0Ghz with air.