That is just fine, thing is though, does that PSU put out about 15-20 amps of current or is it the 1.5A kind? You need more amps then a regular PSU will put out. That's the sole reason mine aint hooked up. I am running straight water and am very pleased with my temps.
WATT is the electricity running through and AMP is like a river. The bigger, more, watter running through tho more powerful the current. Make sense? The WATT is the water in the river. The AMP is the driving force, the current, for which the water runs. I am never that good at explaining these types of things. Hope I did ok.