Fans were working as they should few days ago, I did mess with some OC in the bios, nothing drastic. I have reset the bios to default just to make sure. Computer starts with fans spinning at low RPM and speed up a little inside Windows. When I start stress testing, they go even more silent practically spinning at their lowest RPM. Bios is set to Auto-PWM, didn't change anything. They don't spin faster upon reaching higher temps 60c+. Any help would really be appreciated as this is really odd behavior. 1st pic is idle, 2nd pic is Cinebench running.