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How can I set a speed for a certain PMW-driven fan manually? I tried LM-Sensors but there it seems the speed can be only set automatically.

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this may work ... you could try to edit your /etc/fancontrol file changing all the values for the specific pwm MINSTART, MINSTOP, MINPWM to all the same values .. that should make it a set speed. You may have to change MAXTEMP to a very high value so it doesn't try to spin up higher then the min values. you will probably have to restart it for the changes to take effect

  • Hmm. Nothing like "anytool -value 200" or anything like that? Curious – Christoph May 10 '16 at 19:53
  • sorry .. I'm actually just making a educated guess that what I answered would work .. I haven't really played with it and use variable pwm with my system so never had to try what you are trying – John Orion May 10 '16 at 19:57
  • if setting those settings helps .. maybe you can get someone who can write you a script that can change those settings by using one command and have it pass a variable so you could type a command like setfan 200 and it would change those values in the fancontrol to 200 and restart the service. Im not good at writing scripts so I cant help you there unfortunately – John Orion May 11 '16 at 1:18
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echo 2500 | sudo tee /sys/class/hwmon/hwmon2/fan3_min hwmon[0-9] and fan[0-9] vary by system.

The BIOS might take over and stop this working, though.

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