When you run across a 750W power supply for $120, even if it is from Cooler Master you ought to think before you buy.  The Cooler Master GX 750W seems great, with an 80+ rating, 4 PCIe plugs for your graphics and a slew of SATA power connectors and a 120mm fan to keep it relatively cool.  Then you see the results that Hardware Secrets found in their testing; noise on the +3.3 V and +5V outputs caused them to head way out of spec at a 600W power draw.  As a 450W-500W PSU, it is solid but asking more from it could endanger some of your components.

“GX is the new mainstream power supply series from Cooler Master that is arriving on the market today, so far featuring 550 W, 650 W and 750 W models. Let’s see if the 750 W model is a good buy.”

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