80 Plus, and what it means when it comes to PSUs

Subject: Cases and Cooling | September 25, 2006 - 02:16 PM |
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SPCR likes to talk about PSU that are certified 80 Plus.  As taken from the website, that means "The 80 PLUS® performance specification requires power supplies in computers and servers to be 80% or greater energy efficient at 20%, 50% and 100% of rated load with a true power factor of 0.9 or greater."

The problem being that they are very hard to find.  The 500W Zalman ZM360B-APS is an 80 Plus PSU, though there are other issues that SPCR discovered while reviewing this power supply.

"80 Plus approved models are the most efficient of the efficient power supplies. 80 Plus certified PSUs are difficult to find on the retail market, however, because the program is aimed at system builders, not DIY enthusiasts. That's beginning to change with increasing consumer recognition that 80 Plus certification is a sign of a good power supply. The Silverstone Element Plus is one of a handful 80 Plus power supplies now beginning to appear on the retail market."

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