i'm experiencing problems with my PCH fan. It's spinning with 3000-3500RPM and its temperatures on idle are from 70-75°C. I tried to stress test but I couldn't find appropriate software. My BIOS version is 1407. Before I figured it out it is PCH fan I thought it was Prism Wraith cooler but after replacing that with Dark Rock 4 Pro I found out it is PCH fan whining. I'm using meshify c case with 2 intake and 1 exhaust so airflow shouldn't be a problem... Does anybody have an idea if it is a faulty MB or is this how it should be?
CPU: 3700x w/ dark rock 4 pro
RAM: 16GB Corsair 3600MHz
MB: Asus TUF x570 Plus wifi
NVMe: Samsung 970 EVO
GPU: PowerColor 5700 XT red devil
Case: Fractal Meshify c with 3 bequiete fans
PSU: BeQuiete 700W Power 9 CM