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Deepcool Gamer Storm Castle 240EX AIO Cooler Review

To measure the performance of CPU coolers, we devised an easily repeatable series of tests. The only variable is the coolers themselves to ensure the results can be accurately compared against one another.

Test Rig

To reflect current hardware demands, our test system comprises of a Z390 platform and included is the Intel Core i9 9900k CPU, mated with a Gigabyte Z390 Aorus Master motherboard and 16GB (2x 8GB modules) Patriot Viper RGB running at 3600mhz CL16. Our storage device is the Corsair Force LE 120GB SATA SSD. Power to the test system is managed by a Seasonic Platinum Series 1000w PSU.

Thermal Testing Procedure

The procedure will consist of several tests, that will produce six temperature readings for each cooler. The data can then be used to compare cooling performance.

First, we will lock the 9900k at its 3.6GHz all core base clock speed, with a 1.15V Vcore applied in the BIOS. Then, let the system idle in windows for 15 minutes and measure temperature. At the same frequency, we will then measure the load temperature.

To simulate overclocked frequency, we will then lock the 9900k to 4.7GHz on all cores with a 1.20V Vcore and run the same idle and load test again. To measure an extreme overclocking situation, we will lock the 9900k frequency to 4.9GHz on all cores at 1.30V and run the tests one final time – this should push the limits of the cooling performance of even the very best CPU coolers.

Admittedly, the overclocked frequencies/voltage may not be the highest achievable, but, nevertheless, it will give us a good set of data to compare the effect frequency/voltage changes have on temperature.

The temperatures presented in the graphs will be average Delta temperatures measured over the length of the test. We will calculate the Delta temperature by deducting the ambient temperature in the test room from the measured CPU temperature, both at idle and under load.

All idle temperatures are measured by letting the system idle in Windows for 15 minutes. Load temperatures are achieved by running AIDA64 stressing CPU, FPU and cache again for 15 minutes. This should give the CPU enough time to reach its maximum temperature. Throughout testing, Load Line Calibration will be set to level 6 (turbo) in BIOS and all CPU Fans/pumps set to maximum RPM.

Noise testing

Noise levels will be measured with our sound meter at a distance of 1 meter from the test bench, the cooler’s fans will be set to their maximum rpm rating. Ambient Noise level in the room is measured at 37.5dBA. The peak noise level of the cooler will be recorded in dBA.

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