9 hours ago
Maybe Windows did something weird to your BIOS...
Have you tried clearing the BIOS settings and NVRAM/DMI settings?
Or your motherboard could be failing... I had an old Socket 370 board that was dying, and one of the symptoms it had early on was loss of RPM readout for the fans. Maybe faulty SIO chip? not sure. Never figured it out at the time, maybe I could now...
Heck, sometimes Windows does BIOS updates without asking, it might even have flashed incorrectly or something... I've heard of laptops getting bricked because Windows decided to do a BIOS update for fun but did it wrong.
Have you tried clearing the BIOS settings and NVRAM/DMI settings?
Or your motherboard could be failing... I had an old Socket 370 board that was dying, and one of the symptoms it had early on was loss of RPM readout for the fans. Maybe faulty SIO chip? not sure. Never figured it out at the time, maybe I could now...
Heck, sometimes Windows does BIOS updates without asking, it might even have flashed incorrectly or something... I've heard of laptops getting bricked because Windows decided to do a BIOS update for fun but did it wrong.