Ive also found F2 to be the most stable and requires the least amount of voltage for a decent OC. I can successfully OC to 4.6 @ 1.3v....For every day use I have it down to 4.3 @ 1.2v. When I use F6 or F7B - this OC fails miserably

Im going to stick with F2 for now as I like 4.3 @ 1.2v...Idle temps are between 26c-30c..Load is @ 50c...

My MAIN issue with this board is the USB3.0. Any time I connect a 1TB+ drive it detects it, then drops it, detects and it drops it...While doing this, it sees a drive but suggests I need to format it....Very annoying.

For it to remain connected, I have to first connect it to USB 2.0 and then back over to USB 3.0..

Anyone else have this issue? I too am seriously considering returning this and getting the P8P67 Pro...