4 Replies Latest reply: Jan 7, 2013 1:52 PM by Kappy
eclectra Level 1 Level 1 (0 points)

When I install memory into the two empty slots in my late-2009 iMac and turn it on, it beeps in what sounds like (angry) morse code. It does long and short beeps in a pattern of short-short-short-long-long-long-short-short-short, and then it stops and shuts down. Fortunately, the machine does start up again just fine on the original memory.


This does not seem to be the three-beep pattern that shows up in the support communities discussions. I have checked the installation multiple times (according to instructions at http://support.apple.com/kb/HT1423#1) and pushed the cards in so hard my thumbs hurt, so I don't think that is the issue.


The memory is also from Apple (http://store.apple.com/us/memorymodel/ME_IMAC_F09_21) and is brand new, so that shouldn't be the issue either.


In case my system details help, here are the basics:


Screen Shot 2013-01-07 at 3.50.56 PM.png

Screen Shot 2013-01-07 at 3.43.33 PM.png

I also have a video of the beeping that I could probably make available if it would help.


Any thoughts, Apple gurus? Any help would be greatly appreciated.

iMac, OS X Mountain Lion (10.8.2)