CDdude55 :
Only if the new board is a new chipset, then yes a reinstall is needed. But i see no issue in just backing up your data and reinstalling.
i went from intel's X58 chipset to Z68 to Z87 to X99 without re-installing even once. the chipset and RAID drivers just worked in the new build. i had to remove some of the old USB and NIC drivers and replace them with new ones, but for the most part it was problem free. all i had to do was turn on RAID in the BIOS before booting into windows for the first time since my OS volume is on two SSDs in RAID 0 and everything fired right up .
i didn't even bother re-installing when i migrated to new SSDs. i just used acronis true image to move my OS from 2x OCZ Vertex 3 Pro to 2x Samsung 840 Pro then to 2x Samsung 250 Pro.
i haven't used an AMD CPU since the San Diego core FX 57 days (summer of 2005 i believe when AMD was kicking the **** out of Intel), so i don't know what it's like in the green camp right now. but from what i read their sockets and chipsets last anywhere from 2 to 4 generations of CPUs. so i'm sure that there will be an APU utilizing the FM2+ socket in the near future again since it was only introduced in 2012.