Well after a few more hours of testing, I think I must conclude that this setup is not going to be an adequate overclocker. Any NB setting over 1.375 causes high instability. I have not been able to get through a 3DMark06 run without error. Perhaps I just have a bad batch of E8400 or the NB is cooking, I can't be certain. As mentioned before, I can run windows stable enough, even prime won't crash after a long run, but Sandra benchies and 3Dmark06 die everytime. Here are the settings I used for basic windows stability:

FSB: 1700
Ram: 850
Dram Timing: Auto
CPU +.025000
Ram: 2.05
NB: 1.375 - 1.4
SB: Auto
CPU GTL: 0.866
FSB Term: 1.313
Rest Auto

I don't imagine the P7N BIOS is going to get much more refined than the 2.0, at least not for dual cores. I'll put this to rest for now, unless anyone has suggestions on what might be causing the failures. Thx.

OS