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CoolIT PURE Silent Liquid CPU Cooler
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by William Kelley on February 11, 2008 in Water-Cooling

Having the ability to overclock a Quad-Core processor while keeping your machine quiet used to be a pipe-dream, until CoolIT’s latest CPU cooler came into the picture. With the PURE, we managed a nice 3.67GHz clock on our QX6850, all while being able to hear our hard drives over the cooler.

Testing


I used standard methodology of testing for the PURE. All tests were done 3 times to ensure accuracy. I used Windows XP Professional as the OS, while Prime95 was used to fully stress the CPU during testing. The latest version of CPU-Z was also used to verify processor frequencies as well.

All system drivers were updated to the latest as was Windows. All testing was done with everything installed in case and side panels fully attached. No special added cooling was used and the configuration was kept uniform during all testing. Ambient temperature was also kept nearly constant at 65°F (18°C) during the entire testing process.

One thing I want to mention right away is the sound levels, or should I say lack of sound levels. The PURE is one quiet cooler. It was easy to hear any other noise producing system component over the PURE – even the hard drives.

Enough talk. Here’s the down and dirty on the results.

Stock CPU speed @ idle:

Stock CPU speed @ full system load:

As you can see from my results, the PURE is quite capable of keeping your CPU temperatures well in line. If you consider the heat load of a Quad-Core processor running 3.0GHz, these results are very good. The noise level was also near silent. So of course, time for overclocking!

CPU set to 3.67GHz @ idle:

CPU set to 3.67GHz @ full system load:

As you can see, the PURE had no problem keeping the fully loaded Quad-Core well under the 100C throttle point.