Chad's CPU Cooler Test System Specifications
- Motherboard: ASUS ROG Maximus VIII HERO (Intel Z170) - Buy from Amazon / Read our review
- CPU: Intel Core i7 6700K - Buy from Amazon / Read our review
- Memory: Patriot Viper 4 3000MHz 4X4GB - Buy from Amazon / Read our review
- Graphics Card: MSI GeForce GTX 1060 6GB OC - Buy from Amazon / Read our review
- Storage: Corsair Neutron XTi 480GB - Buy from Amazon / Read our review
- Case: INWIN D-Frame - Read our review
- Power Supply: Thermaltake Toughpower DPS 1050W - Buy from Amazon / Read our review
- OS: Microsoft Windows 10 Home 64-bit - Buy from Amazon
- Software: RealTemp 3.70, AIDA64 Engineer 5.75.3900, and CPU-z 1.77.0 x64
To see our testing methodology and to find out what goes into making our charts, please refer to our CPU Cooler Testing and Methodology article (October 2016) for more information.
Using the defined "modes" in iCUE software, we find three results for the stock round of testing. At 61.5-degrees, we see bottom of the barrel performance for the Quiet Mode. Moving up the list slightly is Balanced Mode where we look at 58.75 degrees as that result. However, if you opt for the Extreme Mode, we see the H100i PRO RGB tied for seventh place at 54.25-degrees.
Applying the overclock while still using the modes that iCUE provides, we find the cooler falls down the list quite a bit. Quiet Mode gets to 79.25-degrees, which is way too warm for us. Slightly better is the Balanced Mode where we saw 75.75-degree results. Again, the Extreme Mode does as it should, and while increasing efficiency some seven degrees from the Quiet Mode, the 72.25-degree result is not all that great, considering it gets bumped out of the top twenty.
However, there is one option left that we have not yet tried, and that is setting the pump and the fans to a fixed 100% and running the overclocked test again. With much noise to go with it, we were able to drop nearly two more degrees, resulting in this 70.5-degree result, which is the best the H100i PRO RGB can perform for us.
Noise Level Results
During the stock CPU testing, we also took sound measurements of the fans. For reference, the pump will always top out at 30 dB. In Quiet Mode, the fans never broke 25 dB at 690 RPM. Balanced Mode puts the fans topping out at 760 RPM with a 26 dB rating, and Extreme Mode has the fans turning at 1310 RPM with 32 dB measured at that time.
Applying the overclock did not change things much at all. In Quiet Mode, fans at 770 RPM now, the noise is only 26 dB. The Balanced Mode has the fans max at 880 RPM with 27 dB of noise. The Extreme Mode does not increase much either, even though the fans are spinning at 1480 RPM, the mouse only increases to 34 dB.
To get the best thermal performance from the H100i PRO RGB, you need to set the fans to the fixed 100% option in iCUE. Doing so allowed our fans to spin up to 2460 RPM, but the noise drastically increases to 59 dB as well.
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