Core i9 9900K OC at 5000 MHz 1.35 volts
Core i9 9900K OC at 5000 MHz 1.35 volts
Time for the overclocking. 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 9th 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 on 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). Air coolers usually have a tough time with our Core i9 9900K. The Scythe NINJA 5 is not an exception. Let’s try to push the voltage beyond the 1.35 V mark.
Core i9 9900K OC at 5000 MHz beyond 1.35 volts
There are four 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 Scythe NINJA 5 managed to keep the CPU temperatures under control until 1.35 V, it was a bit too much at 1.4 V. The final result is nice, considering the very low max rpm of the fans.
