I have fan problem with my HP Pavilion dv6 laptop. When turning on it shows "fan error 90b" and i don't hear the fan spinning . So i disassambled the laptop to see the fan. So now i can see the fan i turned the laptop on and the fan just spins for 1 second and stops and it does this repeatedly. So then i searched for solutions how to fix this problem. I tried all these solutions:
- cleaning the fan
- cleaning radiators
- checking fan wires
- checking if the fan is stuck
- replacing thermal-paste
- changing thermal-pads
- resetting bios by taking out cmos battery
- updating bios