Step 4. The fan speed settings will normally be expressed as a percentage of the maximum fan speed in the BIOS. The fan’s highest setting is 100, while its lowest setting is 0. A number of 0 represents the fan’s lowest setting. Save and exit after making the changes you desire to your settings.
If you try the above method and it does not work, it is possible that your computer does not allow you to change the CPU fan speed. It is possible that the system BIOS prevents this from happening, which is sometimes the case with laptops, or that your CPU fan is not attached to a motherboard fan connector that allows for fan speed adjustment.
