Zalman CNPS8000A CPU Cooler ReviewRJR -
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Testing and Setup:
Testing of this cooler will involve a Prime95 run (4 threads) for 4 hours using the Blend setting at stock and a mild 3.61 GHz overclock. The load temperature will be the maximum temperature of any core as recorded by Coretemp. The idle temperature will be recorded as the average temperature after at least 30 minutes of an idle condition. The ambient temperature was maintained at 22c throughout the testing. The stock 3.06 GHz frequency of the i3 540 defaults to 1.212v vcore and a mild 3.61 GHz overclock was run using 1.224v vcore setting. Since this is mainly a slim case/HTPC cooler and not an overclocking cooler these mild settings should be more conducive to the real world application of this heatsink. All coolers are tested with the thermal grease supplied with the cooler.
Also, the testing of this cooler, since it does come with a Fan-Mate 2 fan controller, was performed without the controller installed, hence the fan was running at its maximum RPM (2600 RPM) giving us the high setting and then ran with the fan controller installed at the lowest obtainable speed (1400 RPM), giving us the low fan speed setting.
- CPU: Intel core i3 540 (3.06 stock and 3.61 OC)
- Motherboard: ECS P55H-AK
- Memory: Kingston HyperX blu 4GB DDR3-1600
- Video Card: Gigabyte HD 5870
- Power Supply: Enermax Modu-82+ 625W
- HDD: Seagate 640 GB 7200.11
- Optical Drive: Samsung DVD-R
- OS: Windows 7 Pro 64-bit
The 4 heat-pipe design of the Zalman CNPS8000A CPU cooler (on high fan speed) bettered the stock Intel heatsink by 12c on the stock load and 16c on the overclocked load, so, not too bad for a low-profile cooling solution.