My laptop fan runs continuously even when not using the application. CPU fan speed is 2300 RPM. Is that normal? This is my first time using elementary OS.


2 Answers 2


Use the top command in Terminal and check the %CPU column.

  • Good suggestion. I sometimes have one or more -bash commands eating up resources. After killing them, CPU usage (and thus fan speeds) return to normal. Commented Dec 10, 2017 at 9:42
  • Thanks for answering my question. My CPU is about 40%. When I use windows fans will turn slower when the machine is not working. But in the elementary os, it always rotates at a high speed. Does windows have BIOS, elementary not?
    – huyhungdev
    Commented Dec 11, 2017 at 12:18
  • I think it's some software you installed that keeps running in the backgraound after you close it. That's why I suggested the top command to see which app is consuming CPU. Commented Dec 11, 2017 at 17:27

The top command is what was needed. THX alot. Ad first I tried to find out with gnome system monitor..it showed me 0% CPU usage. top command

identified high CPU usage of packgagekitd

, which is an update lookup and for the reason my fans where spinning full time. Just in case you experience the same issue..after using top, type:

sudo killall -KILL packagekitd

and quite time is back again.BTW, I'm new to Elementary Os..I started with Juno..

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