MacBook overheating when BigSur installed

So, for whatever reason, my MacBook Pro has been overheating on Big Sur randomly, since when I updated it from MacOS Catalina. I updated it on Thursday, March 25th 2021.

MacBook Pro 13″, macOS 11.2

Posted on Apr 27, 2021 02:38 PM

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Question marked as Top-ranking reply

Posted on Apr 27, 2021 03:16 PM

Give this a try:


How to reset the SMC of your Mac - Apple Support

Reset NVRAM or PRAM on your Mac - Apple Support - 2 to 3 times in succession


Boot into Safe Mode according to Start up your Mac in safe mode - Apple Support and reboot normally then check to see if the problem persists.


NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files


2 replies
Question marked as Top-ranking reply

Apr 27, 2021 03:16 PM in response to TeleHerbie

Give this a try:


How to reset the SMC of your Mac - Apple Support

Reset NVRAM or PRAM on your Mac - Apple Support - 2 to 3 times in succession


Boot into Safe Mode according to Start up your Mac in safe mode - Apple Support and reboot normally then check to see if the problem persists.


NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files


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MacBook overheating when BigSur installed

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