Well that's pretty much the question. The manual to my mother board says that I'm going to need a +12V power connector. I've seen power supplies that are called ATX12V and then power supplies taht they call P4 compliant. Is P4 compliant another way of saying that it has a 4-pin 12v connector thing? Will a Thermotake Silent purepower 420W W0009R work with a board that needs the 12V connector?