Apple Event: May 7th at 7 am PT
I'm having the same problem others are - in Mountain Lion, I seem to be getting a much warmer computer, with the fan running hard much more often. I'm not a heavy CPU user, and am not sure why the CPU should be working so hard. What's up? Any help appreciated. An iStat view is shown here.
iMac, Mac OS X (10.7.1), 3.4 GHz Intel Core i7
Go to the Activity Monitor App (Applications-->Utilities-->Activity Monitor.app) and check what is gobbling your CPU. Make sure to select "All Processes" at the top-right corner and to sort the list by %CPU.
Go to the Activity Monitor App (Applications-->Utilities-->Activity Monitor.app) and check what is gobbling your CPU. Make sure to select "All Processes" at the top-right corner and to sort the list by %CPU.
What are you doing at the time your system get hot?
Having the screen turned fully bright and heavy use of your graphics card as well as your cpu will certainly make it a bit toasty inside.
Checked Activity Monitor, and it seems that the biggest user of CPU was oddly Skype - which I had open but wasn't even using at the time! Quit it, and CPU use goes down. Why it should be so active is beyond me, maybe I'll write them and ask if they've had problems recently.
Thanks for the help - I guess we can consider this one solved.
why is my iMac overheating?
