32GB ram in 2012 cMBP?

Discussion in 'MacBook Pro' started by InuNacho, Mar 21, 2018.

  1. InuNacho macrumors 65816

    InuNacho

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    In that one place
    #1
    I've read confusing reports as to whether or not 32GB of ram is usable in a 2012 cMPB. Most information I can find are from people telling other people they were crazy in 2012 for wanting such an amount of ram. Fast forward to the present and 32GB isn't unreasonable at all. Kits float around on ebay all the time, but I have no idea if they'd work in my machine. Would it work?
     
  2. Richdmoore macrumors 68000

    Richdmoore

    Joined:
    Jul 24, 2007
    Location:
    Troutdale, OR
    #2
    Here is a listing of the Max Ram possible on all the macbook pro models:
    https://everymac.com/actual-maximum-mac-ram/actual-maximum-macbook-pro-ram-capacity.html

    Edit: Glancing at the list, there is no MacBook pro that can use more than 16gb of ram, at the present time of this post.
     
  3. Intell macrumors P6

    Intell

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    #3
    While the CPU can support it and the machine can physically take it, the firmware does not support it.
     
  4. JTToft macrumors 68040

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    Apr 27, 2010
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    Aarhus, Denmark
    #4
    - The CPU can support 32 GB, but at a maximum of 8 GB per module. And since there are only two slots, 16 GB is the maximum.
     
  5. hallux macrumors 68030

    hallux

    Joined:
    Apr 25, 2012
    #5
    Correct. I think that's the part that confuses some people
    "Intel says the CPU supports 32 GB!"
    "Did you read past that?"
    "No, what does it say?"
    "8GB per slot, the computer only has 2 slots"
    "oh"
     
  6. Intell macrumors P6

    Intell

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    #6
    The firmware or microcode of the CPU does not support it. However, it may be possible for Intell or Apple to release an update to do so. But seeing as these machines are over five years old, they likely won't.
     
  7. InuNacho thread starter macrumors 65816

    InuNacho

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    In that one place
    #7
    Thanks for the information. Guess I'll live with 16gb.
     

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