One more thing, before buying XFX 650i Ultra check whether all the RAM slots are working or not. The problem is that, I had to change the same mobo since it won't boot with all the ram slots occupied. Will be getting the replacement by wednesday. Even the BIOS update doesn't help.
After repeated effort was able to boot with 1gb*3 modules but when I installed the module into the slot closest to the cpu (white) the machine won't boot.
Even if install a single module into that first slot the system would still not boot but that same ram module works fine with other memory slots.
Anyhow, my friend had bought 3 of these mobo and out of the three one had this same problem.
So please check at the time of purchase.