Yeah I would also suggestion BIOS version 0511 as I tried 0603 earlier and was not impressed (granted I could have given it more time but I went back to 0511). Also I would suggest manually adjusting the BIOS settings instead of using the "CPU Level Up" options (although that setting may work I would start by just manually going in and selecting the settings you want to use). Plus doing it that way will allow you to try more options and maybe get more stable than you are. I hate to say it but I would also stick with a single GPU for now, just until your able to get things up and running without problems, unfortunately your not the only one having SLI issues! I apologize if you have already tried manually going through BIOS without any luck and that is why your using the "CPU Level Up" option instead. Also make sure to try different combinations of settings even if they result in the same overall clockspeeds (like locked, unlocked, different dividers, etc..). At least that is how I fianlly got things up and running somewhat.

I should also add that I just gamed for about an hour (first time playing a game since getting this motherboard) and I had zero problems. No freezing or glitching (Yet anyway)! Being able to game without issues is another plus in favor of this board for me (going from wanting to sell to being pretty impressed is awesome)! To be honest however I'm just waiting for things to start going downhill again anytime, I have a feeling that even though I'm running pretty stable now (able to game, browse internet, run some 2d benchies, etc..) as soon as I fire up Orthose (Prime) its going to fail right off (that would suck)! I will update thread later tonight before I hit the sack about stability. Good luck guys, just keep at it!