The coolermaster, if the specs are correct on the sticker can channel 960(vs 840 from the PC Power and cooling) watts of its total power to its 12 volt rails. This assumes that the 5 and 3.3 are not loaded too much. Either way, you have more then enough power for anything on the market. PC Power and Cooling are known for quality. Both are overkill so unless you have problems, i would not worry.