I have an i5-8600K overclocked to 4.7GHz on all 6 cores, with Corsair H100i RGB Platinum 240mm AIO, with all 2 fans running at 1900RPM. As you can see in the pic it's clear that the temp goes on in a trend, the cpu is also being utilized 100%, and I use Intel XTU for stress testing. The highest temp it got to is 85 degree celcius, and the lowest it got to during the stress test was 68 decree celcius. Here are the photos.