A:Answer I would buy a better power supply 750w or higher. Its a 650w no name brand from china. Here's what I added and changed. Bought a 212 Cooler Master EVO, Black & White Wires, Added 16 Gigs of Ram 3000hz, Corsair top fan, and ordering a nother 212 fan to complete the cpu cooler. "Mind you I'm still using stocked power" But sometimes it freezes when sleeping because how much power the motherboard/cpu&gpu. Oh and 1 more thing I bought a 512 m,2 with a heatsink also. Keep your pc cool! This thing is powerful esp when upgraded! I'm waiting for power supply to go on sale! :) Best way to shop! Save your coins and invest!