8 Replies Latest reply: Jul 9, 2011 8:47 PM by Matt 23
Matt 23 Level 1 (0 points)

Warranty issues aside, I recently installed an OWC 115GB Mercury EXTREME Pro SSD as a second hard drive in my 27/i5 Mid 2010 2.8GHz iMac.  I did not change any other configuration setting and the original hard drive is configured as shipped.  After shutting everything up the internal fan(s) spin extremely loud (especially on the left/cpu side as you are facing the screen).  I installed istat pro and while the temperatures look good to me, it says the CPU fan is not running.  I've been searching online for days and can't find anyone else that has the same problem.  I've taken the iMac apart twice since the problem started and can't find anything broken, connected upside down, or plugged into the wrong spot.  Has anyone by chance run into this before?  Thanks for the help!  I posted a copy of the istat readings below.


Screen shot 2011-05-02 at 10.01.25 PM.png

iMac, Mac OS X (10.6.7), Mid 2010, 27 i5 2.8GHz, 16GB RAM