Here is the funny thing, I'm testing and upping FSB now, and have all the volts at minimum. Testing is going great. Last night I tested 490 FSB (6 multi) and it was stable for a couple of hours... but... when I restart I only get fans spinning. Comp wont even post... And I have to reset BIOS and do all the settings over again, test stability in Windows no probs, than I reboot and same thing again. What could be the problem? I tried 2 different BIOS-es as I thought it might be BIOS issue but still the same thing happens.

Any ideas?