If your output does not display an RPM for your CPU fan, and you are positive it is running, you need to increase the fan divisor. If your fan speed is shown and higher than 0, skip the next step. The first line of the sensors output is the chipset your motherboard uses to read the speeds/temps/voltages. Make a backup first:Ĭode: $ sudo pwmconfigOne by one, all fans will be tested for 'speedcontrol' (Pulse Width Modulation, actually). Pwmconfig will write a config file in /etc. I set the interval to 5 seconds, just to be safe, but 10 should be fine too. Let the script run until you see 'Select fan output to configure, or other action:' (all default options are fine, you can basically enter you way through the script). Now press 5 to look at the configuration file. Go with the defaults until you see: 'Enter the minimum PWM value (0-255)Īt which the fan STARTS spinning (press t to test) (150):' Select a temperature that matches your CPU temp (usually the same number as the fan number, but check and double check!). Keep pressing enter until you hear (or better: see) the fan spinning up. Same for the next step, but the other way around. If you see the fan stops spinning, press y and enter.

Press 5 again to display the config file one more time, then press 4 to save and quit.

FanControl v164 for apple instal