Question CPU Fan very low RPM

Jul 10, 2020
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Hi i have some wierd problem. I bought aftermarket cooler for CPU, but it is going only up to around 300 RPM no matter the CPU temperature (i5 9400f). CPU temperatures go up to 95c but the fan is still at 300 rpm

https://prnt.sc/tfglu3

I did purchased other cooler, but the same thing happens, with intel stock cooler its all good.

I need to say that sometimes it just works, and CPU temps never go above 65c, but some other times its just stuck