Improving heat management after macbookpro 2011 discrete GPU fix, also a script to automate part of the fix process
Taken from StackExchange
Thanks to LangLangC
NOTE: This is experimental; works for some people, not for others
Improved thermal and power management
Create login hook folder for thermal and power management
sudo mkdir -p /Library/LoginHook
Create login hook file
sudo nano /Library/LoginHook/LoadX3000.sh
Add folowing contents when nano opens
#!/bin/bash kextload /System/Library/Extensions-off/AMDRadeonX3000.kext pmset -a force gpuswitch 0 # undocumented/experimental exit 0
ctrl + oto save and
ctrl + xexit
Make it executable
sudo chmod a+x /Library/LoginHook/LoadX3000.sh
Register login hook
sudo defaults write com.apple.loginwindow LoginHook /Library/LoginHook/LoadX3000.sh
Check that proper kexts exist
kextstat | grep AMD
The command above should display
... com.apple.kext.AMDLegacySupport (1.5.1) ... ... com.apple.kext.AMD6000Controller (1.5.1) ... ... com.apple.kext.AMDSupport (1.5.1) ... ... com.apple.kext.AMDLegacyFramebuffer (1.5.1) ... And this ... com.apple.AMDRadeonX3000 (1.5.1) ... should also appear on the list
Boot into single user recovery by pressing on boot
Command + r + s
nvram boot-args="-v agc=0"
Script ot make part of the process automatic
sudo nano /force-iGPU-boot.sh
#/bin/sh sudo nvram boot-args="-v" sudo nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00 exit 0
sudo chmod a+x /force-iGPU-boot.sh
When booting into single user mode (
Cmd + r or CMD + r + s) use
I'm not advising you but I'll tell you what I do. I use something called Macs Fan Control (Crystalidea software). I use a custom preset details as follows:-
Sensor based value - CPU Proximity.
Temperature fan starts to increase from 60degs.
Maximum temperature 75degs.
This keeps mine running cool, the fan probably comes on more than designed but fans are cheap and easy replace. Logic board is expensive.
Also I'm curious, why don't you run Mac OS Sierra on that machine?