Corsair CMPSU-620HX 620 Watt Power Supply Review

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Testing Results

AMD Testing:

We ran the Corsair HX620W on the latest and greatest AMD platform using an FX-62 processor and a pair of reference GeForce 7800 GTX 512MB video cards as they are more power hungry than the GeForce 790GTX’s.  We loaded the system up with 4GB of Corsair PC2-6400C3 memory, an AGEIA PhysX PPU card, a Corsair Nautilus 500 water cooler running on high, a couple 80mm fans, a 120mm fan, a 250GB Western Digital hard drive and a Sony DVD player.  We then ran prime 95, 3DMark2006, and played a music CD from the optical drive using Windows Media Player 9.

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Our testing left our processor running at 100% load with each and every 12V rail drawing more power than at idle. The results are graphed below.

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Intel Testing:

We also ran the Corsair HX620W on the latest and greatest Intel platform using an Intel Core 2 Extreme X6800 processor and an ATI X1900 CrossFire video card paired with an ATI X1900XTX video card.  We loaded the system up with 4GB of Corsair PC2-6400C3 memory, an AGEIA PhysX PPU card, a Corsair Nautilus 500 water cooler running on high, a couple 80mm fans, a 120mm fan, a 250GB Western Digital hard drive and a Sony DVD player.  We then ran prime 95, 3DMark2006, and played a music CD from the optical drive using Windows Media Player 9 just like we did on the AMD system above.

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Our testing left our processor running at 100% load with each and every 12V rail drawing more power than at idle. The results are graphed below.

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The Corsair HX620W Power Supply ran both the AMD FX-62 and Intel X6800 processors with multiple GPU’s and a physics card just fine. Not once did the voltage rails drop enough to cause concern and the most we could get the rails to budge was 0.08V on the 12V2 rail, which happened on the Intel test platform. The Corsair HX620W power supply is by far one of the most stable PSU’s that I have seen to date.

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