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Thread: Manual Fan Speed Control

  1. #1
    Join Date
    Aug 2006

    Manual Fan Speed Control

    I would like to be able to change my case and cpu fan speed under manual control. I installed pwmconfig and started its self-test, it increased the fan speeds to 100% GREAT!, but I was to afaid to let it test the system by turning off the fans and control-Ced out. I then ran my high load program and found that 100% was what I wanted for this job. I did not allow pwmconfig to store a config file. I then went back to windowsXP and tried speedfan, which also worked and allowed the kind of manual control I need.

    So I know that the hardware infrastructure is there. Could someone direct me to a Ubuntu friendly version of speedfan or tell me how to set up manual control of fans via pwmconfig without the scary part of turning off the fans.



  2. #2
    Join Date
    Nov 2005

    Re: Manual Fan Speed Control

    I can do this via the command line -


    #echo 1 > /sys/class/hwmon/hwmon0/device/pwm1_enable
    #echo 100 > /sys/class/hwmon/hwmon0/device/pwm1

    your device names might be different though, or require a slightly different input

    if it works for you, you can make it permanent by putting the commands in a script and running it at each boot from /etc/rc.local
    <a href="" title="The Ubuntu Counter Project - user number # 8807"><img src="" alt="The Ubuntu Counter Project - user number # 8807" /></a>

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