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Motor keeps running

Ever since I upgraded to Lion (and doubled my RAM) it seems like my 2009 Macbook's motor ( for lack of a better term) seems to run and run until I put it to sleep. Is it all coincidental? I make sure it is vented. Doesn't seem to make a difference. And of course my Apple Care just expired.

MacBook, Mac OS X (10.5.8)

Posted on Jul 3, 2012 4:07 PM

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Posted on Jul 3, 2012 4:10 PM

The fan runs continuously. If yours is running faster than idle then:


Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time, then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.

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Jul 3, 2012 4:10 PM in response to sofromlex

The fan runs continuously. If yours is running faster than idle then:


Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time, then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.

Jul 3, 2012 4:27 PM in response to sofromlex

OK, then you need to determine how fast the fan is actually running, and how hot the computer is getting and why.


I would suggest you start by installing some system monitoring software. I recommend using iStat Menus 3.23 to provide menubar monitors for lots of information including information on fan speed and temperatures.


Oh, and yes you can quit Activity Monitor for now.

Jul 3, 2012 5:49 PM in response to sofromlex

That's not so bad if you are in an 84ºF room. If that's the ambient temperature, then you will find the computer's temps will run higher and the fan faster to keep it cool. Anything you can do to improve ventilation will be helpful. I usually elevate the rear about 3/4 to 1" and always work on a table top. A small cooling fan on the desk can't hurt either.

Jan 30, 2013 12:42 PM in response to Kappy

I ran across this conversation when looking for information about my computer.


I've installed the iStat program.


The exhause fan currently is running at ~2000 rpm and is idle

however the sensor says that my computer is 150-160 deg or some even more !


Why would the computer be getting that hot? if that is a true temp...

I'm in an office, the computer is on a desk... well vented.

The computer is a Macbood air, 2011, almost 2 years old.

Now as I'm finishing this note, the temp say 180 deg


thanks for your input

Motor keeps running

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