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I've to manage 50 workstations of different brands, mostly DELL T76** and HP Z800. They are all installed on CentOS 7.4.

I would like to have a tool to test fan speed in command line, not only CPU fans.

Is there such a general tool or will it always be depending on the motherboard?

  • I'm guessing you already looked under /sys/class/thermal? – Ignacio Vazquez-Abrams Jan 4 '18 at 10:54
  • No. I don't know this. – Kevin Lemaire Jan 4 '18 at 10:58
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    Google for lm_sensors, sensors-detect and fancontrol. The latter is a console tool to manipulate fan speeds, if your kernel can control the fan, that is. Neither new nor hidden ... – Bananguin Jan 4 '18 at 15:37
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I've solve this using lm_sensors as suggested by @bananguin. Here is an explanation for the basic usage:

To install on CentOS: sudo yum install lm_sensors

To set this up: sudo sensors-detect This will detect and setup the various hardware. The "safe" answers are the defaults.

Finally, using sensors command will display the value for the previously detected hardware. Also, I'm using Watch command to check live updates.


Fancontrol is based on pwm-capable sensors and it's apparently not my case.

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