Shut down your PC. Press the power button immediately press F2 to enter into BIOS setup. Press F9 ( or load the default button shown on the BIOS screen) to reset your BIOS. Press Esc or F10 and select "save and exit" press Enter and allow your system to restart then check if the fan now works.
Some of the best computer repair shops in Riverside:
1. A1 Computer Service & Parts.
2. CSS Computer Service & Sales.
4. Biztek Solutions.