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PC Power & Cooling Silencer 750 Quad PSU
We take a look at PC Power & Cooling's high-end 750W PSU that not only keeps things running smoothly, but also does it without a lot of noise.
|Before diving into our , perhaps a small history lesson is in order. are well known for manufacturing high-end power supplies as well as a host of related products. Here is a snip from their home page:
"Over the last 22 years, has produced many innovative products including: the first CPU cooler, the first PC heat alarm, the first independently-regulated PC power supply, the first redundant power system, the first NVIDIA-certified SLI supply, the first One Kilowatt computer power supply, and the first power supply with its own certified test report (Turbo-Cool 1KW)."
I would imagine many of our readers are aware of PC Power & Cooling given their long history and respect within the enthusiast community. I would also guess some of our readers know, as well as some who do not know, the are part of the group. Development is still kept in-house but OCZ's distribution muscle will further expose products to a wider audience.
Hence, the name of the product is actually PC Power & Cooling Silencer, though in retail you may find it labeled as the OCZ Technology Silencer. For the purposes of this review, we will refer to the PSU as the former.
The retail box is well put together, with the power supply and accessories securely stored inside. There isn't anything particularly spectacular about the artwork, but since it's "only a PSU", I'll look over that. The box contains some product information which will assist potential buyers in making a decision. Some of the key features pointed out on the box are SLI certification, high efficiency (80 Plus), 8-pin PCI-E, low noise, and 5-year warranty. We'll cover the additional features in a few moments.
Other than the PSU, the rest of the package is rather sparse. There is a small folded cardboard sheet outlining installation (very basic) and warranty information. I would have liked to have seen a spec sheet or booklet covering some of the PSU's features in more detail. There are four installation screws, a power cable and a print out of PC Power & Cooling's internal test results. This is a nice touch as each PSU is QA tested and signed off before shipping.
The PC Power & Cooling Silencer is a matte black, though other colours are available. One of the first things that caught my attention is the weight. This is easily the heaviest PSU I have ever had the chance to work with.
Much of the weight is attributed to the large heatsinks that take care of the circuitry's cooling requirements. All of the capacitors are Japanese made and are of very high quality.
As some of you may have heard, one informal and completely unscientific way of gauging a PSU's quality is the weight. The heavier the better. I have seen some instances where this is not the case, so we'll reserve judgment until further testing.
Unlike some performance PSUs, the PC Power & Cooling Silencer is devoid of any 120mm bottom fan. The only fan present on the PSU is the rear exhaust.
As you might imagine, the name "Silencer" implies that the PC Power & Cooling Silencer is designed to generate very little noise, and thus explaining why there is only one fan. PC Power & Cooling rates the Silencer up to 10dB less noise per Watt compared to similar power rated units.
There is an automatic fan speed control circuit that will scale back the fan depending on the internal PSU temperature. While one fan is quieter than having two, as the temperature increases, the fan speed must as well. This will result in a fan working very hard, or in other words, spinning at very high RPMs to control the heat. Being that an 80mm fan needs to spin faster than a 120mm fan to move the same amount of air, the noise levels can get very high when under load.
The PC Power & Cooling Silencer measures 7" in length, slightly longer than some PSUs we've worked with. I happen to own fair large mid-towers, so the Silencer fit without any issues, but those of you with small cases should double check.
The cables route out of the PSU, neatly secured with a zip tie.
There are some additional ventilation holes for intake purposes.