so I started reading a lot about undervolting etc. and tried it myself. I use a lenovo yoga 920 and I dont do any hard workloads, but the fan noises annoyed me as lenovo is known for its loud fans. I wanted to do smth about the noise and came to the conclusion that undervolting could help to decrease the cpu's power use and therefore the noise of the fans. I use Intel XTU and did a few stress tests with undervolting up to -0.100V. Now my laptop runs at a core package temperature of 45C on average and max is 90C during the stress test. My problem is that, just now the fans totally stopped making noise even when the cpu is under heavy demand. When i did a stress test the temp. of the cpu went up to 93C but i couldn't hear any fan noise. Just yesterday I could still hear it. Are my fans damaged? is that even a possible result from undervolting? How can I check if the fans still work (speedfan doesn't work as it does not support new laptop models) and what should I do next?
thanks in advance!