Be Quiet! Dark Rock 2 CPU Cooler Review




/ 12 years ago

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We always use the same test system with CPU coolers that we compare against each other. The full specifications of our test system are as follows:

Test system:

  • ASUS P8Z77-V
  • Intel Core i5 3570K with Gelid GC Extreme
  • 16GB Kingston HyperX 1866MHz DDR3
  • AMD Radeon HD 5870
  • 128GB Kingston SSDnow V100 (Boot Drive) and Samsung F3 1TB (storage)
  • Antec High Current Gamer 620W
  • Cooler Master Test Bench v1.0

We’d like to say a big thank you to ASUSAntecKingstonCooler Master and Intel for providing components that makes this testing possible.

Testing Methodology:

  • We always use Gelid GC Extreme or Noctua NT-H1 thermal paste (almost identical performance) to make sure testing reveals the efficiency of the tested coolers not the efficiency of the bundled thermal paste.
  • Prime 95 is run for 10 minutes and then the average maximum temperatures as recorded by CPUID HWMonitor are noted
  • The system is left in idle for 10 minutes on the desktop and then the average minimum temperatures as recorded by CPUID HWMonitor are noted
  • Fans are always left to operate at PWM speeds, if this is not supported then 100% fan speed is used
  • Delta temperatures are always used (Observed temperature minus ambient temperature) and we keep the ambient at 22 (+/- 1) degrees for all testing although Delta temperatures correct for the changing ambient anyway.
  • The average temperature across the four cores is taken on our quad core processor
  • Acoustic measurements are taken 10cm away from the CPU cooler with the VGA fan disabled
  • The cooling performance tests are run at stock 3.4GHz (with Intel Turbo up to 3.8GHz) and overclocked 4.5GHz settings
  • All other coolers in the graphs have been tested under identical settings
  • Each test is repeated 3 times for consistency of results
  • There is approximately a 1 degree celsius margin of error in our temperature recording software
  • There is approximately a 1dBA margin of error with our decibel meter

Software Used

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