Coolermaster Hyper6 KHC-V81-U1 Copper K8/P4 Heatsink Review
Fresh from the chrome plated Jet4 wonder, Coolermaster are back with the brand new 6-heatpipe packing Hyper6 KHC-V81-U1 Intel Pentium4 and AMD Athlon64 heatsink! Copper is the name of this game, and the Hyper6 certainly uses plenty of it. Mounted to the forged copper base are no less than six individual copper heatpipes which rise up through the center of 27 stacked copper fins to a height of just over 120mm. Levitating 40mm above the base is a 80x80x25mm fan, and its speed control dial can be hooked up to an aluminum 3.5" bay cover for quick fan adjustments.
As an added benefit, the raised height of the fan helps ensure the Coolermaster Hyper6 clears any nearby capacitors on either a Socket 754/940 or Socket 478 motherboard - since it is compatible with both processors. With the fan speed controls at hand, users can dial in just how loud or quiet they would like to run the heatsink, but of course for best performance, the speed needs to be cranked all the up.
The Coolermaster Hyper6 heatsink comes with an 80mm fan, a set of brackets for mounting the fan speed controller, an assortment of screws, clips, and a dual-purpose socket478/754 combination heatsink retention frame. In this way, the retention mechanism is greatly simplified, and makes it a real synch to use the heatsink on either processor type. Perhaps more importantly, should you ever decide to upgrade to another heatsink, the retention mechanism won't hold things back.
Looking at the Coolermaster Hyper6, you realize that all the cooling power of this heatsink comes down to just a few heatpipes. It can often seem like heatpipes are these magical little devices which somehow transfer massive amounts of heat energy from one point to another. In fact, were it not for the six copper heatpipes in this heatsink, the Coolermaster Hyper6 would be nothing more than a pretty chunk of copper.
But what exactly are heatpipes, and how is that these hollow metal tubes are able to move heat? What makes them tick?
To answer that question, we'll look at what happens as one of the heatpipes in the base of the Coolermaster Hyper6 heatsink warms up. As heat energy from the processor reaches the 6 heatpipes a reaction inside each of the copper tubes starts. Each copper heatpipe is sealed off at both ends, and contains a small amount of working fluid under a vacuum.
Now might also be a good time to remind you of chemistry class when you were taught that the lower the pressure, the lower the temperature (heat energy) needed to boil water.
As the copper base of the Hyper6 warms up, it transfers that heat energy to the heatpipes soldered to its surface. The working fluid inside each heatpipe absorbs this latent heat, causing the fluid to undergo a phase change into water vapour (ie. it converts to steam). In our daily lives, water boils at 100C, but as pressure is decreased the temperature gradient required also drops. In any case, the small amount of working fluid inside the heatpipe quickly converts to vapour as the temperature of the evaporator (hot side) end of the heatpipe heats up.
The vapour is subsequently drawn to the cooler end of the heatpipe and condenses. As the hot vapour cools back into a liquid, the heat energy that was previously stored is transferred into the fins of the heatsink. The condensed vapour, now working fluid once again, is drawn back towards the hot evaporator end of the heatpipe by capillary action along an internal wick structure. As the liquid reaches the hot end once more, the entire process repeats itself.
This is how heatpipes move thermal energy, and how the Coolermaster Hyper6 essentially works to keep an Athlon64 or Pentium 4 processor running cool.
The dual use socket 754/940 and Socket 478 heatsink retention frame holds the Hyper6 cooler firmly in place on either Intel or AMD processor. Coolermaster also ship the HSF with two brackets, so you have your choice of where to located the fan-speed controller.
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