Articles: Cooling
 

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Dual-fan CPU coolers have become more common because it is not possible anymore to increase the performance of single-fan coolers by simply making their heatsinks larger or putting more heat pipes into them. So, some manufacturers have begun to ship coolers with two fans and others provide for the installation of a second fan by designing the heatsink in an appropriate way. With one intake and one exhaust fan, an air cooler is going to lower the peak temperature of a CPU by 5 to 7°C at low speeds and by 2 to 4°C at high speeds compared to itself working with only one fan. That’s the general rule I can infer from our tests of such coolers as Thermaltake’s FrioOCK and Frio, Sunbeamtech Twister 120, Noctua NH-C14, Spire TherMax Eclipse II, and others. Today, two more products from Cooler Master and Thermaltake Technology will be added to this list.

Cooler Master V6GT (RR-V6GT-22PK-R1)

The Cooler Master V6GT (RR-V6GT-22PK-R1) comes in a large and stylishly designed box with a flip-back cover.

The red text and smart photographs on the black background suggest that we’re dealing here with a serious and exciting product which is different from conventional and dull coolers.

You can find the product’s specs and key features and a few design drawings with its dimensions on the back of the box.

The V6GT lies in the center of the box and is inserted into a piece of foam material. Coupled with the top plastic cover, it makes the cooler fixed firmly inside together with the accessories box.

The latter includes fasteners for all modern computer platforms, a back-plate, a user manual, and Cooler Master’s thermal grease.

The cooler is manufactured in China and costs about $70. It comes with a 2-year warranty.

The Cooler Master V6GT is a rather large and heavy cooler. Its dimensions are 165x120x131 millimeters and its weight is 939 grams (I measured it to be 961 grams, the heatsink alone being as heavy as 628 grams). The cooler is enveloped in plastic almost from every side except for the bottom of the heatsink.

 

 

The cooler’s two fans are installed into plastic frames which are attached to the top plastic cap as well as to the sides of the heatsink:

  

As you can see, there is one intake and one exhaust fan. As opposed to the Thermaltake FrioOCK, they are both rotating in the same direction. The heatsink is covered from above with a plastic cap that has a regulator and what looks like a line of LEDs. I will talk about them shortly.

 

There are cutouts for cables in the bottom part of the fan frames. That’s all about the external features of the cooler. Now let’s take the plastic details off and have a closer look at the heatsink.

 

This seems to be a classic tower-design heatsink with six nickel-plated copper heat pipes, 6 millimeters in diameter. The heatsink consists of 55 aluminum plates which are 0.35 millimeters thick and 1.5 millimeters apart from each other. The plates are soldered to the pipes for efficient heat transfer.

 
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