Cooler Master Silent Pro PSUsby Christoph Katzer on September 8, 2008 3:00 AM EST
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We knew before even cracking the casing that this power supply is from Enhance, which is fine since we like their craftsmanship. We have seen many different models made by this ODM, but they are usually 850W to 1000W. These are the first 500W-600W models we've seen from Enhance, and we were eager to begin testing. As you will see shortly, they don't let us down.
The heatsinks are large and occupy almost all of the free space in the casing. Cooler Master advertises their use of small copper plates on the heatsinks as a means of increasing heat dissipation, since copper transfers heat faster than aluminum. Aluminum still dissipates the heat faster to the surrounding air, which is one reason the whole cooler isn't made of copper. The second reason is of course the much higher price of copper. In fact looking a little bit closer at the "copper" plates, we don't actually think they are made of pure copper - more likely a copper alloy (i.e. bronze). That is again cheaper than pure copper since there is a higher percentage of zinc in the alloy. This keeps most of the good features of copper and only decreases the outcome slightly.
The layout is another good Enhance feature. The input filtering stage reaches from the AC input over the whole upper side of the PCB to the right side. After that comes the PFC stage with a large coil. There are two main capacitors made by Nippon Chemi-Con (450V, 180µF, 105°C). In the secondary, we find mostly Teapo capacitors and two made by Su'scon.