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Switching Power Supplies A to Z
Switching Power Supplies A to Z, by Sanjaya Maniktala (Newnes), starting at $49.00
Home » Power
PC Power & Cooling Silencer 750 Quad Power Supply Review
Author: Gabriel Torres
Type: Reviews Last Updated: May 14, 2008
Page: 10 of 10
Real-time pricing for OCZ PPCMK2S750.
PC Power & Cooling PPCMK2S750 Silencer Mk II Supply 750W 80 Plus Silver 135mm Fan SLI Ready CrossFire Active PFC at OCZ Buy the PSU a super low price. is your one source for best computer and
TigerDirect: $94.99 CompUSA: $94.99

Conclusions
Hardware Secrets Golden Award

We were really impressed by this power supply. It not only could deliver its labeled power at 50º C, but we could pull up to 868 W also at 50º C!



Efficiency was one of the highlights of this product during our tests. If you pull up to 80% of its labeled capacity (i.e., up to 600 W) you will have at least 85% efficiency, peaking almost 90% when you pull 40% of its capacity (300 W). We could see an efficiency of 82.8% when it was delivering 750 W, which isn’t bad at all! Even when we overloaded it efficiency was still above 80%.

It is a very quiet power supply if you run it below its maximum capacity.

Featuring a 5-year warranty (the product box says 3 years, but it is wrong), four video card power cables (two of them with 6/8-pin connectors) and a sufficient number of peripheral power connectors, this product is perfect for high-end users looking for a power supply on the 750 W-850 W range. And the best of all, it isn’t expensive for a power supply on this power range (it costs between USD 150 and USD 160 in the US), providing a terrific cost/benefit ratio for this kind of user.

Therefore PC Power & Cooling Silencer 750 Quad deserves no less than our “Golden Award” seal.

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