upgraded to Mountain Lion fan is constant…

upgraded to Mountain Lion fan is constantly running

MBP 2011

Upgraded with Mountain Lion and now the fan in constantly running. I've checked the activity monitor and there is no application taking over a few %.

I don't have anything running other than Chrome, finder, activity monitor, drop box.

I tried the the SMC reset suggested in other posts but that didn't solve the problem.

After shutdown and power up, the fan is off but then it slowly builds to full speed

Any help would be appreciated, thanks

MacBook Pro, OS X Mountain Lion

Posted on Jul 25, 2012 11:54 PM

Nov 1, 2013 2:36 PM in response to Yllek2

Update: This only works for a short time and then the fans are back at it, running very loudly, enough that it is bothersome and it does concern me.

I have had nothing BUT problems since the "complimentary" upgrade to ML, and I've spent too much time troubleshooting with both paid professionals (ie, not Apple employees) and with Apple Care. A few days ago, I was told that the fans running must be a hardware problem, but it can't be, or it is at the very least too much of a coincidence that others have had this same issue with the installation of ML.

I am supposed to haul my 27-inch late 2009 iMac back to the Apple Store, one more time.

I do agree that Apple should be addressing this issue, but I'm not holding out any hope.

For the record: I am not using Chrome, nor have I got any other programs mentioned in this thread as being the culprits.