Quote Originally Posted by ChaosAD View Post
Pacha, my previous Q6600 had a VID of 1.325. To run it stable at 3.4Ghz (8x425) i needed 1.41v real for cpu and 1.56v real for NB. For 3.5Ghz i needed 1.51v real for cpu and 1.6v real for NB. I also had to increase FSB VTT some but dont remember how much exactly. My new Q6600 has a vid of 1.30. I need 1.39v real for cpu and 1.37v real for NB to run at 3.6GHZ (9x400).
Mh interesting. Thank you for this remark, so maybe mine would need that too.
What are the batches you have for these two quads? What vFSB do you use with your new quad?

Anyway, if it requires 1.55V to be stable at 3.4G it's not worth the overheating and the risk of burning my NB again for +100MHz, as I am stable at 3.3G 1.35V NB.

I don't catch very well why the quads need so much secondary voltages increase over dual, on my E6600 the vFSB didn't changed anything about stability, and I've seen other people reporting the same.
Maybe much more power drained and stronger signals are required on the FSB and so does the nb?
Btw, my MB capacitors whistle quite a lot while they didn't with my dual so I guess it's because this chip is a gas plant compared to the dual.