How can I reduce My CPU frequency to prevent overheating in Ubuntu ?

By Daki - Last updated: Sunday, February 21, 2010 - Save & Share - 4 Comments

ubuntu76 How can I reduce My CPU frequency to prevent overheating in Ubuntu ?
TangerineDrinker asked:


I have Ubuntu running on a laptop, I need to know what will be required in terms of configuration to reduce overheating.
When I run windows it works smoothly, but Linux on the other hand overheats it so much, that makes the fans work full throttle.
I read that there’s a way to make the CPU work slower, and that supposedly prevents overheating, I want to know what could possibly be done.

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4 Responses to “How can I reduce My CPU frequency to prevent overheating in Ubuntu ?”

Comment from p1r473$m4(|{
Time February 22, 2010 at 11:33 pm

Add this to your /etc/rc.local and reboot

Will switch to the powersave governor, which makes your CPU run at lowest speed.

Comment from jerry t
Time February 25, 2010 at 10:43 am

This link will let you change the cpu frequency.
Good luck

Comment from Mono12
Time February 26, 2010 at 8:42 pm

Like the posts above me said change the scaling to powersave instead of ondemand or performance
to go to teh text file mentioned above type this:

sudo gedit /etc/rc.local

then type ur password
if your using Kubuntu / or xubuntu ( KDE/XFCE) instead of gnome then use Kate for KDE or mousepad for XFCE

should look like this:
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will “exit 0″ on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
for cpu in /sys/devices/system/cpu/cpu?/cpufreq/scaling_governor; do
echo -n powersave > $cpu
done
exit 0

Comment from OS Discs
Time March 1, 2010 at 11:05 pm

Do as Mono12 says and you will be fine.

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