Corsair H115i RGB Pro XT liquid cooler review - Core i9 9900K OC at 5000 MHz 1.35 volts

Name: Corsair H115i RGB Pro XT liquid cooler review
Brand: Corsair H115i RGB Pro XT

by Krzysztof Hukalowicz on: 02/25/2020 03:05 PM [

] 32 comment(s)

Core i9 9900K OC at 5000 MHz 1.35 volts

1.35 V and higher voltages can cause serious problems for Coffee Lake CPUs because of the TIM used under the heat spreader. Luckily the 9^th generation uses solder again. Our Core i9 9900K was set to 5000 MHz, at 1.35 volts. Again, wPrime 2.10 (3 times, 1024 M) was used. IDLE temperature measurements are taken in the desktop, with almost no stress to the CPU.

The temps shouldn’t go beyond 90°C, as otherwise, the CPU might degrade and also throttling can occur (especially applicable to the AMD Ryzen range, which normally operates at lower temperatures). AIO coolers usually perform well with our Core i9 9900K. The Corsair H115i Pro XT is not an exception. Let’s try it with a voltage higher than 1.35 V.

Core i9 9900K OC at 5000 MHz beyond 1.35 volts

There are five stages for the charts below:

Default
5.0 GHz @ 1.35 V
5.0 GHz @ 1.4 V
5.0 GHz @ 1.45 V

The Corsair H115i Pro XT managed to keep the CPU temperatures under control until 1.4 V. The final result is nice considering the size of the radiator (it’s 280, not 360 mm or even more).

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