I updated my Bios to F9 and stupidly didn't save what ever version I had.
F9 proved to be no good. My rear USB 2.0 ports stopped working and BSOD on shutdown.
So I read on another person thread that F6 was working, so that is where I ended up. Works fine.
Updating the BIOS always makes my heart rate go up, so is F11 working good. I haven't seen anybody post anything bad or good about it.