I have seen people face difficulty getting 8GB to cooperate with this board, but I'm sure that's true of many boards and might just require further perseverance. I'm assuming that you would be moving your signature's system to the P7N Diamond, though. The P series BIOS is geared towards performance and, as is mentioned on the first post in this thread, is based on 1.1B6. I personally would remain with 1.2B1 as it has worked well for me and 1.2B2 still lacks notes as far as I know. If I had to guess, though, I'd say 1.2B2 is probably an attempt to fix lingering 780i video corruption issues.