Will this PSU work? Yes, it is a Coolmax. However it is 80 certified and has great reviews. I know Coolmax is a low quality brand, but this PSU my be an exception. Every brand has good and bad products right?
Agreed. CX430 is better than Coolermaster a bit. And you can get it cheaper on Newegg now. As far as power needs you don't need to be worried about wattage. Your system will draw 250W max and both of these supplies will be sufficient.
I would just like to be clear on the amount of watts my PC will need. I'm using a radeon 7770 and AMD athlon x4 quad core 750k processor. 4gb ram ddr3 (1 stick), an optical drive (dvd-rom or below) and a 7200rpm hard drive (3.5") My motherboard is a regular desktop, nothing high end. ($60) Can you please tell me how much watts I'll need?
I would say between 300W - 350W.
I picked the cooler master 450w. Will it be enough?
Can you clarify what the efficiency % means? Does that mean how much wattage it will actually put out, or is it the amount it takes in? (So a 85% would be really good on electricity and cost lower to run?)
The efficiency of the PSU's ability to convert AC to DC.