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Tuniq Potency 650W Power Supply
Author: Jason Kohrs
Manufacturer: Tuniq
Source: Tuniq
Comment or Question: Post Here
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Tuniq Potency 650W Power Supply
February 18, 2009

We have taken a look at a couple of Sunbeamtech's higher end Tuniq brand of power supplies over the past year, and have been impressed with what we have seen so far. The first two units offered all of the features and specifications a computer enthusiast might want, but they also carried substantial price tags. While the unit provided for today's review might not have a total power rating of 950W or 1200W, hopefully some of the other desirable features have been carried over to this 650W, sub-$100 unit.

Up for review is the Tuniq Potency 650W power supply, shown in the promotional image above. It is a standard ATX sized unit that offers a no nonsense, monochrome appearance. Before taking a closer look at the unit provided for review, let's take a look at some published data on the Potency 650W power supply, as taken from the official product page on the Tuniq website.


High Efficiency 80 plus
SLI Certified
Active PFC
Advanced Off-Line Cooling (Fan will not stop working until the temp below 50C )
Silent 140mm Two-Ball Fan
3-year Warranty
Size : 160x150x86mm


AC input: 110~240 VAC, 50~60Hz
DC Terminal Current(A)
    12V1: 25A
    12V2: 25A
    5V: 25A
    3.3V: 25A
    -12V: 0.3A
    +5V USB: 2.5A
Maximum Combined Wattage:
    12v Rails: 552W
    3.3V and 5V Rails: 150W
    -12V Rail: 3.6W
    +5V USB Rail: 12.5W
Maximum: 650W

From the data above we see that there are two 12V rails rated for 25A each, and both the 5V and 3.3V rails are also rated for 25A. Many manufacturers are getting back to having one large 12V line in order to handle the needs of power hungry peripherals, but at least the two found in the Potency have decent ratings (as far as 650W units are concerned).

Another interesting feature is that the fan is configured to keep running after the system has been shut off if the temperature is above 50C. I have seen aftermarket items available to add similar capabilities to any fan, and have often wonder just how necessary they could be. I'll be sure to pay attention to the fan in order to see how it performs.

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