Our load tests utilize a couple of FAST ATE active load testers and a variety of other equipment such as an oscilloscope, power conditioner, temperature probe and a power consumption meter. You can read more about our standard testing approach here.
The tests performed are based around six conceivable setups that are out there and progressively load down the PSU up to the power supply's limits or 1000W, whichever comes first. Since our test equipment's limits lower than that of the PC Power & Cooling 760W, we can test it to the maximum.
Taking a look at the results, it is clear that PC Power & Cooling is still producing quality power supplies with the Silencer 760W. Voltages throughout all of the tests are solid from start to finish and well within ATX specifications. From start to finish, both the 3.3V and 12V rails showed only a drop of .02V. The single 12V rail showed a little bit more of a drop during the full range of testing, with a total drop of .13V. This is still excellent voltage regulation all the way around as the largest change in voltages was 1% on the 12V rail.
Ripple on the 12V rail was also excellent throughout all of the tests. At 30% load, the Silencer 760W showed only 9mV of noise on the 12V line. As the load increased throughout testing, so did the noise on the 12V rail, but in very small increments. Even at the end of testing, the ripple measured a maximum of 23mV peak to peak. PC Power & Cooling claims that the Silencer 760 has "Rock-Solid, Super-Clean DC Output". It doesn't get much more rock-solid and super-clean than this.
The PC Power & Cooling Silencer 760 is an 80Plus Silver power supply, meaning that it is rated for 85%, 88%, and 85% efficiency at 20%, 50%, and 100% loads respectively. Our tests show that the unit is well deserving of that title as the efficiency is well above that, although not quite good enough to earn it an 80Plus Gold rating.
As was stated at the beginning of the article, many feared what was to come from PC Power & Cooling after OCZ purchased the company in 2007. As we can see by the performance of the Silencer 760W, the buyout has had little, if any effect on the company to produce power supplies that perform spectacularly. The PC Power & Cooling Silencer 760W performs spectacularly in all aspects. Voltages and ripple were great throughout all of the tests performed and the efficiency great for an 80Plus power supply. All of this is thrown in a package at a price of only $130 backed by a 7-year warranty, so no matter how you look at it, you score a win.
Very little can be said that needs to change with the Silencer 760W power supply. The only flaw that we could find was the lack of a cable guard/grommet where the native cabling exits the power supply. Native cabling will also be something that a buyer should be aware of as there will surely be extra cables floating around inside the PC that you will have to find somewhere to hide them or just deal with it. Excellent performance at a great price often comes with a few sacrifices and if these are the only two to be had with the Silencer 760W, then it is hardly a sacrifice at all.
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- Page 1 [Introduction, Specifications, Availability and Pricing]
- Page 2 [The Packaging]
- Page 3 [Inside the Box]
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