Quote Originally Posted by Hyperhorn View Post
If you just raise up the CPU-multiplier you don't need more vNB oder vFSB. But not all Q6600 can handle 3.6 Ghz on air. A friend of mine had a Q6600 which wasn't primestable at 3.5 Ghz @1.42V, so it depends on your CPU. (And don't forget: No one likes to share crappy results, so the normal results for a certain CPU regularly are worser than shown at forums)
But you can test your maximum following:
Try for example 420*7, then 440*7 and so on, but don't step over the known primestable CPU clock. I'm pretty sure you need at first some extra vNB and then when you arrive FSB Wall some extra vFSB.
Then decide what you like for 24/7. Maybe 440*8 is better for you than 400*9, even if CPU clock is 80 Mhz lower (just an example of course, it depends on your memory, too etc. )
+0.1V vNB is okay, but more than +0.1V vFSB is not useful for 24/7 IMO
That's what I thought since the FSB was constant and I assumed vFSB would only increase max FSB a little. I backed down again now. Maybe I will try again later when I feel like it. But in general, increased vFSB and/or vNB can only increase stable FSB, right?

Maybe I will try bumping up the FSB some more or tweak NB performace level or memory timings. I'm guessing some more vNB might be needed when overclocking the ram since I'm using 4 sticks. I guess this is what you risk when buying the CPU relatively early. All things aside though, running it at 400x8 is actually enough since my GPU is probably more limiting in gaming anyway and I always seem to have enough CPU-power whatever I do. It's just that having a little overclocking project is fun.