Late 2012 27inch iMac - Upgrading RAM - is 16GB the maximum?

Discussion in 'iMac' started by jackofharts, Jan 31, 2016.

  1. jackofharts macrumors member

    Dec 9, 2012
    Hi there,

    I'm looking at upgrading my iMac's RAM (27 inch, Late 2012, 8GB). I just checked on Crucial and it is saying I can upgrade it to 16GB, but my iMac has four slots, so why is 32GB not being offered as an option?

    Any advice, as always, greatly appreciated.

  2. futureisfilm macrumors newbie


    Jan 31, 2016
    I don't know for sure obviously but I've heard that you can upgrade beyond that limit. I'm going to be doing it with my iMac 21 inch late 2011 model. Once I do I'll confirm on here.
  3. Proteus Zero macrumors newbie

    Proteus Zero

    Jan 31, 2016
  4. FreemanW, Jan 31, 2016
    Last edited: Jan 31, 2016

    FreemanW macrumors 6502

    Sep 10, 2012
    The Real Northern California
    32 GB is the maximum supported. Actually, the Crucial site shows a 16 GB Kit (8GB x 2) .

    I've the same as Proteus Zero, with a 3 TB Fusion drive (replaced with the Seagate Apple recall).

    I ordered two 16 GB kits the moment I finished placing the order for this late 2012 unit. They got installed before it ever saw the power cord when it was new.

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