CPU downgrading in Ubuntu

Article Title: CPU downgrading in Ubuntu. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

These two days, the CPU temperature is very high, depressed.
To solve this problem, we first found two fans (one CPU, one chassis fan) and one USB cable. After a period of operation, I found that the effect was not obvious. It probably dropped by 1 degree. I still don't know if it was due to the decrease in frequency. There is no way, so we have to find another way-lower the CPU pressure and lower the frequency!
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There is actually the simplest method code:

Sudo dpkg-reconfigure gnome-applets

Select "OK" and "yes", and add the cpu frequency monitor to the Panel. The cpu freq-selector is automatically installed. You do not need to install cpufrequtils.
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We need to install cpufrequtils. This software displays the current cpu frequency, modifies the frequency, selects the cpu, and selects the cpu running mode. Note that only some cpu with adjustable frequencies are supported, such as intel's notebook cpu. It may be too frequent to try it.

Sudo apt-get install cpufrequtils

Usage

Cpufreq-info, cpufreq-selector, and cpufreq-set.

For specific usage, see man or add-h after the command.
For example

Man cpufreq-info

Or

Cpufreq-info-h

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