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  1. #1


    Member Since
    Jul 29, 2012
    Posts
    3
    max frequency for RAM for mid-2010 MBP?
    Hi! Just bought 8GB RAM from Ebay (2x 4GB, 1333MHz) for my mid-2010 MBP

    Took out the old memory and installed the new sticks. System profiler is telling me however that my 8GB is only running at 800MHz! (both slots at this speed)

    -I had 4GB@1066MHz before and I now believe that to be the max speed for this MBP?
    -Is it only recognizing 800MHz because I have exceeded that maximum?
    -Is it really running at 800MHz or what? Or maybe at 1066, but just indicating 800MHz for
    some reason?

    Or could the problem simply be that the sticks were identified incorrectly? They have stickers on that say 1333MHz and I bought from a pretty major seller on Ebay.

    Thanks in advance for any ideas

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    49,102
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    The correct modules for your model MBP are:

    2 - 204-pin PC3-8500 (1066 MHz) DDR3 SO-DIMM

    Macs are very fussy about using the correct memory. Send that memory back to the buyer and get a refund and buy the correct modules from a reputable reseller. We recommend either Other World Computing or Crucial.

  3. #3


    Member Since
    Jul 29, 2012
    Posts
    3
    so because I got the wrong ones, will they only be operating at 800MHz? or will it be 1066?
    Thanks

  4. #4

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    49,102
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    It doesn't really matter what frequency they'll operate at. It's the wrong memory and will cause you problems in the future. Send it back and get a refund or re-sell it and buy the correct memory as I indicated above.

  5. #5

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    22,262
    Specs:
    Imac 27" Retina 5K, 512GB flash memory, 3.3GHz, 16GB memory, macOS Sierra beta.
    Major seller or not you have to purchase Mac compatible memory modules. Go over to OWEC and check out the precise memory you need.


    http://eshop.macsales.com/shop/memor...ok_Pro/Upgrade
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  6. #6


    Member Since
    Jul 29, 2012
    Posts
    3
    OK thanks guys

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