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be quiet! Dark Rock 2 CPU Cooler Review - Test System Setup and Thermal Results

By: Chad Sebring | CPU Air Coolers in Cases, Cooling & PSU | Posted: Jun 7, 2012 4:44 pm
TweakTown Rating: 92%Manufacturer: be quiet!

Test System Setup and Thermal Results




I would first like to thank HIS and GIGABYTE for supplying products for me to test with.


Testing for the CPU coolers is done with the use of RealTemp to ascertain temperatures, Intel Burn Test to deliver the load to the CPU and CPU-Z to verify the CPU speed and the voltage being used in Windows.


For the "stock" runs, it's more of a plug and play setup where the PWM of the motherboard is in control of the fans speeds for both the idle and load results. For the overclocked runs, I load the CPU at 4.5GHz and idle results are obtained with 7.5V to the fans while the load run is set to deliver 12V to the fans.


For the sound testing results, I obtain those while I am controlling the voltage at 7.5V and 12V as well. Sorry for the change in the charts again, but I got the full effect of AVX support and 104 Gflops now, so the older results don't directly apply to the results I get now.




In order to get the 27 degree reading at stock speeds, I had to manually raise the fan speed to 7.5 volts to get these average results. As you power up the PC with PWM in control of the fan, I had times at idle when the ambient temperature was cool enough that the fan stopped running and would allow temperatures to climb a touch higher than these results before the fan would kick back on.




At stock the Dark Rock 2 falls just behind the Xigmatek and Cooler Master tower coolers, but just by a couple of degrees. With the overclock applied, again it was just behind the other two tower coolers on the list, but this cooler is virtually silent in any range of operation where the others are very audible solutions to use.

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