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public:turn_off_intel_turbo_boost_on_linux [2018/03/31 00:38]
127.0.0.1 external edit
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-====== Turning off Intel Turbo Boost(TM) on Linux ====== 
-My laptop is a Lenovo T440p with a i7-4900MQ. I run Folding@Home on two of my CPU cores. The CPU constantly overheats, and my fan is always spinning at 4440 RPM. I find the noise annoying. So here is what I do to control Turbo Boost: 
  
-<code bash> 
-fangfufu@illustrious:​~$ cat /​usr/​local/​bin/​turbo-boost 
-#!/bin/bash 
-    echo "Intel Turbo Boost(TM) Status:"​ 
-    if [[ $1 == "​off"​ ]]; then 
-        echo 1 > /​sys/​devices/​system/​cpu/​intel_pstate/​no_turbo 
-    fi 
-    if [[ $1 == "​on"​ ]]; then 
-        echo 0 > /​sys/​devices/​system/​cpu/​intel_pstate/​no_turbo 
-    fi 
- 
-    state=$( cat /​sys/​devices/​system/​cpu/​intel_pstate/​no_turbo ) 
-    if [[ $state -eq 1 ]]; then 
-        echo "​Off"​ 
-    else 
-        echo "​On"​ 
-    fi 
- 
-</​code>​ 
- 
-By turning off Turbo Boost, my CPU fan speed floats around 4000 RPM. 
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