I'm planning to build my own computer and I found all of the parts. But now I need to find out how many watts I need for the power supply. This is my first time, so can you help me? Here's the tech specs of my computer:
Corsair 650W TX would be your best bet for that. You'd have enough headroom for OCing and upgrades with that - 550 would technically work, but you'd be cutting down on your headroom quite a bit, and the price difference isn't big.