Q: Why is my imac getting so hot?
My imac keeps overheating and running slow when it gets hot.
I have just installed OS X El Capitan and everything seems to be working fine, until that is it starts heating up on the top.
I read somewhere previously there was an app or something that could tell you how the fans are working, but I'm not sure it would run on El Capitan.
iMac 27inch mid 2011, Intel Core i5
iMac, OS X El Capitan (10.11.3)
Posted on Mar 8, 2016 12:30 PM
You need to run Apple Diagnostics first. Instructions here:
Using Apple Hardware Test - Apple Support
If that shows no errors, I would suspect you have some unneeded software that is making your life tough. Please use this Apple article to check for that issue:
Apps can affect Mac performance, battery runtime, temperature, and fan activity - Apple Support
If you still find no issues, then showing the Community a snapshot of your config is the next best step for non-technical users. Please download and run this free utility:
http://www.etresoft.com/etrecheck
It is secure and written by one of our most valued members to allow users to show details of their computer's configuration in Apple Support Communities without revealing any sensitive personal data. It does no repairs but rather reports potential issues for evaluation.
Run the program and click the "Share Report" button when it finishes. Choose "Copy to Clipboard" from the resulting menu:
Then return here and paste the report into a response to your initial post. It can often show if any harmful files/programs are dragging down your performance or causing overheating.
Posted on Mar 8, 2016 12:56 PM
