Unfortunately this mainboard has problems with dual boot setups using Linux besides Windows 7-x64, warmstarts result in networking problems. Whenever I boot into Windows, the NIC goes nuts in an "em1: link up" loop after rebooting into Linux, which makes it unusable. You always have to completely shutdown the system after using Windows, otherwise you will end up without reliable networking under Linux:
http://forums.fedoraforum.org/showth...89#post1492789
I contacted AsRock support about the issue weeks ago but got no response yet and UEFI 1.60 didn't fix it either.