Hmm... That's not very encouraging. On the other hand, it may be that nothing is wrong with your BIOS or mobo, and that some other aspect of the system is preventing you from OCing. Probing deeper, I notice that you have 8 gigs of RAM in this system. That's going to put a good deal of stress on the north bridge of any chipset, nVidia or Intel. Try 1440 for the FSB again, and keep RAM at 800mhz. Also, try upping the NB voltage by, a step up until say 1.4-1.45 and see if that gets you stable. Alternatively, the FSB Termination voltage may need a kick. I haven't played with that voltage on this board, but on the reference boards, 1.4v was a good bet to get 1600mhz stable, and sometimes 1.5v would be needed. If bumping up the NB voltage doesn't solve anything, take a look at your FSB termination voltage. I'd imagine NB needs at least 1.4v however with 8 gigs of RAM.