New Max memory for late 2009 iMac

Discussion in 'iMac' started by Miarka, Jan 28, 2017.

  1. Miarka macrumors newbie


    Jan 28, 2017
    So the apple website has stopped updating the specs for the iMac (21.5-inch, Late 2009,
    3.06 GHz Intel Core 2 Duo) some time ago.
    The most recent specs they have for the maximum memory is 4gb per slot and 16gb total.

    According to the iRam/Mushkin website, they have a compatible 8gb per slot solution.
    This also begs the question of 32gb total? running Sierra 10.12
    Below is the model number and related links.
    Any thoughts?


  2. redheeler macrumors 603


    Oct 17, 2014
    Apple has been known to actually underreport the maximum amount of RAM you can put in your Mac. I'm not sure if this applies to the late 2009 Core 2 Duo, but mid 2010 and mid 2011 iMac 21.5" both can accept 32 GB. Maybe someone else can give you a more definite answer on that specific model.

    Edit: According to Mactracker/EveryMac this only seems to apply to the mid 2011 21.5". Looks like the earlier 21.5" models do cap at 16 GB.
  3. Miarka thread starter macrumors newbie


    Jan 28, 2017
    how about if I use just two of the 8gb for a total of 16gb?
    Do the slots max out at 4gb?

Share This Page