Freqy: I have the ddr3 board, my settings are different in places.

Sobek: Hmmmm, I did remove the Easy Tune software at the same time, so perhaps that was the conflict. The actual error that I got that led me to start disabling everything was "Gpcidrv could not start" or some such, and it wouldnt recognized the 2nd card in device manager, but it took a while for that to show up....Settings for me in the MIB page of bios that helped stability before the removal of the drivers/software was to set the GMCH overvoltage to +.05 instead of the recommended +.15, and the G(MCH) clock skew to +900 ps...interesting note on that, it seemed that in tweaking that setting that the board was 'more' stable on increments of 300 ps (300,600,900,1200 and 1500) with sort of like a bell curve of those points...most other values would not even boot for me there....But I have the ddr3 board and memory, so your mileage may vary on that setting....My settings are still at what I said above, and I havent adjusted them since I got the board stable, since I was so freakin happy to run prime for >15 minutes without a lockup...btw I ran it for 24 hours with no problems. Gonna spend my free time this weekend seeing how fast we can go and will post screenies accordingly

Good Luck