Download Turbo Boost Switcher
NB: Check a launchd tutorial for details.
Create launch daemon file
sudo vi /Library/LaunchDaemons/com.turbo-boost-switcher.plistInsert
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.turbo-boost-switcher</string>
<key>ProgramArguments</key>
<array>
<string>/Applications/Turbo Boost Switcher.app/Contents/MacOS/Turbo Boost Switcher</string>
</array>
<key>RunAtLoad</key>
<true/>
<key>KeepAlive</key>
<true/>
</dict>
</plist>When launch
sudo launchctl unload /Library/LaunchDaemons/com.turbo-boost-switcher.plist
sudo launchctl load /Library/LaunchDaemons/com.turbo-boost-switcher.plistSet in Turbo Boost Switcher GUI checkbox Disable at launch.
After reboot check in Activity monitor that process Turbo Boost Switcher is running.
Check in Intel Power Gadget that Turbo Boost disabled.