iMac Memory

Discussion in 'iMac' started by Boldman, Sep 15, 2011.

  1. Boldman macrumors newbie

    Nov 17, 2010
    I was thinking about getting additional memory for my iMac and I went to the Crucial site. It indicated that the memory for a mid 2011 iMac 27" i5 processor
    required a memory chip with 204 Pins. When I did a memory check on the actual computer it indicated a 200 Pin chip. Which one is correct?
  2. rkaufmann87 macrumors 68000


    Dec 17, 2009
    Folsom, CA
    The current iMac's use 204 pin DIMMS. I would also recommend visiting OWC at, they're very competitive on price, specialize in Macs and are second to none in customer service. You can even go an online chat or call them for technical or other types of advice.
  3. accessoriesguy macrumors 6502a

    Jul 8, 2011
    as long as its DDR3 you should be fine. OWC (mac sales) will tell you if its compatible or not straight from there site.

    If you plan to purchase elsewhere try purchasing RAM at the proper speed.

    1333 or 1066, mainly because not all macs that run 1066 can run (or use) 1333 RAM, and although 1333 is backwards compatible, i'm sure you would rather get the full intended speeds of your mac.

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