Differences

This shows you the differences between two versions of the page.

--- public:turn_off_intel_turbo_boost_on_linux [2016/07/21 15:32] – created fangfufu
+++ public:turn_off_intel_turbo_boost_on_linux [2018/03/31 00:38] – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+====== 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.