Why would you recommend a different power supply? He has a 550 right now. Anyways, I would just say don't be a noob like me and install dual memory sticks in the wrong slot, or go out and buy an ATX power converter because the mobo has four too many sockets (there's a way to plug it in, leaving a few sockets open). And do what MrCommunist said and always get the newest Drivers. Current release is 84.21. A number of games, including those I didn't expect crashed at certain points because my drivers were a little behind.