I would update the bios to F13. Plus I still would do what Autotech said. That board is over 6 yrs old. So it could support the 8gb sticks but you might be taking a chance on it. The last real update for the bios was almost 5yrs ago.
Support for DDR3 2100+/1333/1066/800 MHz memory modules. I wouldn't go any higher than 1333 on the memory too. Yes you can run higher memory, but run the memory that the CPU will support.
One other thing is why do you want to max out the memory just asking? I ran about 6 of those boards. I have run 6, 9, 12 & 18 gbs of memory. Now this is just me, I feel that anything past 9gbs is really a waste of time.