Skor
Level 1 (0 points)

Q: Adding RAM -- do all modules need to be the same?

I have a 27" 2009 imac with 4 GB of RAM.  I'm considering expanding and wanted to know if it is possible to add 8 GB of RAM to what I already have to have a total of 12 GB, or do I need to just replace the existing 4GB with 8 GB?  I've looked around and didn't see this addressed. 

 

Thanks in advance.

iMac, Mac OS X (10.6.6)

Posted on Dec 20, 2012 6:45 PM

by Frank Caggiano,Solvedanswer
Frank Caggiano Frank Caggiano
Level 7 (25,796 points)
A:

The first question you need to answer is which 2009 iMac do you have, early or late. You mention that it is a 27in model so it should be the late 2009 model unless you mistyped the screen dimension.

 

If it is the late model you have 4 memory slots so you can add 2x4gb modules in the two empty slots for a total of 12gb.

 

Have a look at iMac (Late 2009): Memory specifications for the complete specs for the modules you need. Make sure you get the correct memory.

 

regards

Posted on Dec 20, 2012 7:04 PM

Close
Skor

Q: Adding RAM -- do all modules need to be the same?

  • All replies
  • Helpful answers

  • by RRFS,Helpful

    RRFS RRFS Dec 20, 2012 6:52 PM in response to Skor
    Level 5 (4,490 points)
    Dec 20, 2012 6:52 PM in response to Skor

    Yes, you can add RAM to make 12GB by getting 2 4GB modules. Macsales(OWC) or Crucial are great vendors with reasonable prices.

     

    If you are still running 10.6.6 as your profile indicates you should update to 10.6.8 it's more stable and the last version of Snow Leopard.

  • by Frank Caggiano,Solvedanswer

    Frank Caggiano Frank Caggiano Dec 20, 2012 7:04 PM in response to Skor
    Level 7 (25,796 points)
    Dec 20, 2012 7:04 PM in response to Skor

    The first question you need to answer is which 2009 iMac do you have, early or late. You mention that it is a 27in model so it should be the late 2009 model unless you mistyped the screen dimension.

     

    If it is the late model you have 4 memory slots so you can add 2x4gb modules in the two empty slots for a total of 12gb.

     

    Have a look at iMac (Late 2009): Memory specifications for the complete specs for the modules you need. Make sure you get the correct memory.

     

    regards

  • by Skor,

    Skor Skor Dec 20, 2012 7:14 PM in response to Skor
    Level 1 (0 points)
    Dec 20, 2012 7:14 PM in response to Skor

    Thanks for the prompt reply.  I am running 10.6.8 -- I haven't updated my profile in a while.  And yes, it was late 2009, December, right before the end of the year.  It is a 27" model.