Articles: Cooling
 

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Cooling Efficiency

Inside a closed system case using the “weakest” cooling system of the today’s testing participants we managed to overclock our 45 nm quad-core processor to 3.78 GHz (+24.3%). The nominal processor Vcore was increased to ~1.5 V in the mainboard BIOS (+30.4%). The obtained results are given on the diagram below (the coolers are grouped according to the testing conditions and noise levels):

 

Unfortunately, Cooler Master didn’t win in our today’s test session. Moreover, with the disabled TEC unit V10 couldn’t outperform its younger brother – V8 cooler. As you can see, Peltier module allows Cooler Master V10 to improve CPU cooling by 4-6°C under maximum workload, which doesn’t justify the use of a TEC unit, in my opinion. According to the readings from Zalman ZM-MFC2, TEC consumes about 76 W of power. Moreover, when the CPU utilization is minimal the module continues to work at its full potential (as you can see from the CPU temperature in idle mode), so I couldn’t quite understand why they needed a thermal diode in the cooler base at all.

If we disregard all these facts, we will see that Cooler Master V10 is running neck and neck with one of the cooling leaders –ThermoLab BARAM. The latter is only 1-4°C more efficient than the newcomer. However, it is only if we “disregard all these facts”…

 
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