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CoolerMaster Hyper 6 (KHC-V81-U1) Heatsink Review


Everything we've ever seen from CoolerMaster has been low-priced, and low performance. Which to a certain niche, is not a bad thing. From the looks of the new Hyper6 heat pipe CPU cooler from CoolerMaster, people may start thinking about the name CoolerMaster in a whole new way.

If I were to say nothing more about this heat sink, I'd say this beast looks sweet. It actually looks like something I'd expect to see from Thermalright or Zalman, defiantly not something I'd expect from CoolerMaster. It looks nice, and well, that's probably the only kind thing I can say about it.

I'll get into the issues I've had with this heat sink in just a moment. First, we'll take a look at the specifications, features, and everything that's included.


  • Six embedded heat pipes that provide superb heat conduction
  • Special heat sink design - cooling performance is maintained at any angle of declination
  • Raised base design to avoid interfering with components sourounding CPU such as capacitors
  • The user of 100% copper fins and special welding techniques enable perfict connections between fins and pipes
  • High-density fins provide a large surface area for heat dissipation
  • User can choose to use an 8cm fan with higher speeds that provides greater cooling performance
  • Suitable for all K8 and P4 CPUs



Socket Type
AMD K8 (socket 754/940) and Intel P4 (socket 478)
96mm x 82mm x 120mm
6 heat pipes + 100% copper stacked fin with copper base
P4 all frequencies and K8


Fan Specifications

80mm x 80mm x 25mm
Speed 1800 ~ 3000 RPM
Life Expectance
30,000 Hours
Bearing Type
Sleeve bearing
Voltage Rating 6 ~ 12V
Noise Level 21 ~ 34 dB(A)
Connector 4 Pin (Power Input), 3 Pin (Speed Detection)

What You Get
  • Hyper 6 CPU Heat Sink x 1
  • Universal Retentionn Module x 1
  • Universal Back Plate x 1
  • Spring Clip x 2
  • Fan x 1
  • Screws for P4 x 4
  • Screws for K8 x 4
  • Screws for Fan x 4
  • Thermal Greese x 1


  1. Introduction, Features, Specifications, Fan Specifications & What you get
  2. A Closer Look
  3. Installation, Testing, & Problems
  4. Conclusion
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