Quote Originally Posted by Grinder View Post
For 2800 nb at 3.8 gig cpu I needed 1.35v to the cpunb. The cpu was at 1.4125. Just for fun I had ramped it from there to 1.4875v to try (unsuccessfully) for 3.9.
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Howdy,

I tried again for 4ghz on air and I had no luck, I can bench up to 4.1 on air kinda easy, with 2600-2800 NB, but 4ghz stable is not going to happen for me at least not on win 7 64. What I am able to do is 3.9ghz 100% stable @1.45v under air. Now When I added my water setup, even before trying to chill it, I can do 4ghz easy. bring the temp down to the 20*C rang at idle and 36*C load, I can do 4.3ghz stable. You might have a chip that will be awsome under xtreme cooling. Which is what I think mine might be. Good luck, hope you can eak out a little more.