3 Replies Latest reply: Jun 30, 2014 11:06 AM by Ralph Landry1
TheMadTurtle Level 1 Level 1 (10 points)

I have a 27" 11,3 iMac with 4GB of RAM.  I'd like to upgrade to at least 8GB.  When I look on Apple's site, it states that the memory is PC3-10600 for my model.  When I search a number of websites for modules, it comes up PC3-8500.  Going into "About my Mac", I can't seem to find this specification for my existing modules.


1) Do I need 10600 or 8500?

2) I figure I can fill my bottom tow slots with 2GB modules giving me 8GB of RAM, but can I fill them with 4GB modules, which would give me 12GB?