27" RAM Upgrade

Discussion in 'iMac' started by CAUman, May 13, 2013.

  1. CAUman macrumors newbie

    Apr 28, 2013
    Greetings from Germany!

    I ordered an 27" 3.2GHz i5 with 8GB (2x 4GB) iMac from Apple.
    And I would like to upgrade the RAM of myself to 16GB.

    So, i want to by a single 8GB memory.
    -> http://www.crucial.com/eu/store/mpartspecs.aspx?mtbpoid=C8C45A3DA5CA7304

    My question: can the iMac handles 3 used memory slots, or it is necessary that i have to buy a fourth one to "fill" all slots?

    I would be glad about helpfully answers!
  2. simsaladimbamba

    Nov 28, 2010
    The Mac is totally fine with only three modules, even differing ones. You only lose dual channel support, which is a minor speed gain anyway.

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