Articles: Cooling

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Design and Functionality

Frankly speaking, there is nothing extraordinary about the design of the Deepcool Dracula cooler. It consists of six copper heatpipes going through the copper base and piercing two independent heatsink fin arrays:

There is an additional low-profile heatsink installed right above the cooler base. All parts of the Dracula heatsink are nickel-plated.

The heatsink arrays are not of the same size: the smaller one has 31 fins and the larger one – 53 fins. Each aluminum fin is 0.45 mm thick and the gaps between them measure 2.0 mm:

The entire heatsink measures 254x100x44 mm. Please, consult the layout below for more detailed dimensions:

The heatsink weighs 555 grams, which is not too much, according to contemporary standards.

The heatpipes pierce Deepcool Dracula heatsink almost evenly at 9-11 mm intervals:

I have to point out that they used soldering in all contact spots between the heatpipes and the heatsink fins as well as heatpipes and cooler base. The entire structure is very stable and sturdy. The heatsink fins have a variable-height profile where the airflow enters and exits the heatsink body. It allows reducing not only the airflow resistance, but also the generated noise.

The heatpipes are spaced at 1.5 mm distance from one another in the base of the cooler:

The contact surface of the Dracula base plate is not only ideally even, but is also remarkably finished:

As a result, Nvidia GF110 (GeForce GTX 580) produced a perfectly even imprint on the base of the cooler even with the smallest amount of thermal paste applied to the GPU heat-spreader:

Deepcool Dracula is equipped with two 120 mm fans, which are very similar to Deepcool UF120, but feature unique teal impeller and a shiny silver sticker on the rotor:

Unfortunately, so far we haven’t found the detailed specifications for these fans, but our measurements showed that their maximum rotation speed was 1230 RPM, startup voltage – 6.1 V, and maximum power consumption of each individual fan didn’t exceed 2.3 W. These fans do not allow adjusting their rotation speed using pulse-width modulation approach, and Deepcool didn’t offer any other ways of controlling their rotation speed. Unfortunately, the Y-splitter is also missing, so you won’t be able to connect both of them to a single 3-pin fan connector. We hope that these are temporary issues typical of our specific pr-production sample and they will be eliminated in the mass production units. The last thing I would like to add is that the fans come with 500 mm long cables.

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