The fan on the HDT-S1283 is a normal 120x120x25 model with no leds. It is a Xigmatek's own model and we'll see later on how well it performs. The specifications for this fan are:
- Voltage: 12 V 0,13 A
- Speed: 800-1500 RPM
- Bearing type: Rifle bearing
- Air flow: 56,3 CFM
- Noise level: 27,2 dBA
The base of the HDT-S1283 is a rather special one, as the heatpipes are directly in contact with the heatspreader of the processor. This should theoretically make the cooler more effective, as there's one layer of copper less in between the CPU and the heatsink.
The Direct Touch heatpipes, as Xigmatek them calls, also bring some new problems. As the base of the cooler is made from three pipes and a block of aluminum, it's far harder to make it flat than just a solid piece of copper. To test the flatness of the base I first put a large amount of thermal paste to one edge of the base and then spread it using a blade. The blade is perfectly straight and doesn't bend, so in the second image the TIM is spread to an even layer. From the image one can see that especially the heatpipe on the center seems to have larger amount of thermal paste on it, which shows that it's lower than the other two. Also the second piece of aluminum from the left is mostly clean, which shows that it's one of the highest points of the base. This already shows that some extra paste has to be used when installing the HDT. Later on we'll see how this affects the overall performance.
The HDT-S1283 indeed is a large cooler. The side panel of the P180B cleared the cooler by 15 mm, but cases less than 180 mm in width (internal) will have a hard time fitting this cooler. The overall height of the cooler, measured from the botherboard tray, is about 175 mm.
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