TinTin,

Ive got this board (0402 bios.) and Im trying to get my Q6600 G0 (1.2125VID) small FFT stable at 4ghz.

It will run blend @ 4Ghz no problem with only 1.5v and ran 3.980Ghz with 1.52v Small FFT .

With just a small increase in FSB from 443 to 445 the pc will restart after a few seconds of small FFT's and Im trying all sorts of different bios options to fix it without success. Load temps are in the low-mid 60's before it reboots.

Any ideas? I noticed you ran 30mins small FFT at 4005.

Do you think it is my motherboard limit ? Not sure why it doesn't just fail prime rather than rebooting.

I thought it may be FSB wall but I can get it upto 515 with x8 multi.