RAM upgrades 8GB and 2GB

Discussion in 'Mac Pro' started by Renegademaverick, Mar 14, 2018.

  1. Renegademaverick macrumors newbie

    Mar 14, 2018
    Hey all.
    Probably a bit of a dumb question. But I am having to upgrade the RAM in my 2009 8-Core Mac Pro. It came with 4 2GB memory sticks. I have a total of 8 slots.

    I recently purchased two 8GB sticks. So I was wondering if I could install the 2x8GB and 4×2GB to equal 24GB. Or do they all need to be 8GB.

    If so what configuration should I install them in.

    Thanks in advance.
  2. flowrider, Mar 14, 2018
    Last edited: Mar 14, 2018
  3. h9826790 macrumors G5


    Apr 3, 2014
    Hong Kong
  4. js2704 macrumors member

    May 20, 2015
    I had exactly the same issue and am happily running 4 x 2 and 4 x 8 for 48GB. The mixing advice is of course spot on.
  5. Thessman macrumors regular

    Dec 8, 2005
    You don't quite add up!
  6. js2704 macrumors member

    May 20, 2015
    Ah, indeed! 4x4 and 4x8....

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