Memory Upgrade for Mid-2011 27" iMac

Discussion in 'iMac' started by lugesm, May 30, 2013.

  1. lugesm macrumors 6502a

    lugesm

    Joined:
    Sep 7, 2007
    #1
    I have a mid-2011 27" iMac with 3.4Ghz Core i7 and 8GB memory as configured in the originally purchased machine.

    I want to upgrade to 16GB and have found a number of threads about OWC vs Crucial. That helps.

    My problem is: I already have 8GB originally installed by Apple at the time of purchase of the machine on 2 of the 4 memory slots. Will there be any compatibility problem with installing an additional 8GB from OWC in the additional 2 memory slots? Or, do I have to buy the full 16GB from OWC or Crucial and throw the Apple memory out?

    Thanks for your help.
     
  2. GoDuke1 macrumors member

    Joined:
    Jan 8, 2011
    Location:
    North Carolina
    #2
    No issues at all. I had 4 gig originally, and upgraded to 12 gig from crucial. You can mix it up with no problems. I'm still running the Apple 4 gig with 8 more from crucial.

    Easiest and cheapest upgrade you can make. :D
     

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