PC Power & Cooling Silencer Quad 750W
Author: Rutledge Feman
Editor: Shawn Knight
Date: 01-21-2008
Provided by: PC Power & Cooling

MSI 975x Platinum PUE (BIOS 7.4)
intel E6600 Core2 Duo 4MB @ 3.30 GHZ : CoolIT Eliminator
ATi Radeon X1900XTX 512MB : Arctic Cooling Accelero S1
HIS Radeon X1900 Crossfire 512MB : Zalman ZF-900
Corsair 2x1GB DDR2-667 4-4-4-12
Creative SoundBlaster X-Fi XtremeMusic
WD 74GB Raptor (10K), WD 250GB Caviar (7.2K), WD 500GB Caviar (7.2K)
PC Power & Cooling Silencer Quad 750W Crossfire Edition
Lite-On 20x DVD±R/W SATA,NEC 16x DVD±R/W IDE
NZXT. Apollo Orange Chassis
2x CCFL Cathodes
3x USB Powered components

To test the PCPC Silencer, I measured the 3.3, 5, and 12 volt outputs to the motherboard at idle and load using a Craftsman volt meter. Idle situations consisted of a blank Windows desktop. Load situations include two instances of Folding@Home, one running on each core, a CD in each optical drive ripping to each storage drive, the primary drive defragmenting, and the ATi Tool 3D view to stress the video card. Next, I used the OCCT stress test in conjunction with my motherboard's CPU core voltage sensor to get a sense of real time ripple on the CPU.

The Silencer performed extremely well under our tests. Like most power supplies I've used, the 3.3 and 5 volt rails were pretty solid. The 12V rail, though, was exceptional and possibly the most accurate and consistent I've ever seen.

The CPU ripple was a little higher than expected, but certainly nothing out of spec or below average in any sense. Looks like the Silencer earned itself some great numbers in our testing, so continue on as we wrap this one up.

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