Articles: Cooling

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Cooling Efficiency and Acoustic Performance

Intel Core 2 Duo Platform

The new Gigabyte cooler performed very well in a platform with Intel’s dual-core Core 2 Duo CPU. Core 2 Duo E6750 processor with G0 core stepping overclocked to 3.8GHz inside a closed system case with the Vcore increased from the nominal 1.35V to 1.625V in the mainboard BIOS:

According to CPU-Z, Everest and SpeedFan, the voltage varied around 1.6V, and dropped to ~1.58V under high workload. Moreover, two processor tests from the OCCT suite launched one after another were passed successfully both times without any indication of attempted thermal throttling.

Here is the temperature diagram for the dual-core processor:

We know very well already what Thermalright SI-128 is capable of from our previous reviews, but the results of the Gigabyte G-Power II Pro cooler made a rally great impression on us. In quiet fan mode (~1020RPM) it lost only 2ºC to the competitor under peak workload, despite the fact that Thermalright SI-128 was equipped with a 38mm thick 120-mm fan! AT maximum fan rotation speed, Gigabyte G-Power II Pro proved even more efficient than Thermalright super cooler, but the performance difference between them is really small. Moreover, the overall temperatures are not very high. Later I will explain why there are no results for the 700RPM fan rotation speed mode, although I think you may have already guessed.

Now let’s check out the maximum processor frequency during overclocking:

The differences are also minimal.

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