Why won't new RAM work in mid-2010 Macbook Pro 13"?

Discussion in 'MacBook Pro' started by djc6, Jan 12, 2016.

  1. djc6, Jan 12, 2016
    Last edited: Jan 12, 2016

    djc6 macrumors 6502

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    Aug 11, 2007
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    Cleveland, OH
    #1
    Upgrading my sister's Mid-2010 MBP 13" MacBookPro7,1 MC374LL/A.

    I bought this RAM: http://www.frys.com/product/7912890

    Its DDR3 and laptop is DDR3. The laptop just beeps when you turn it on with the RAM installed.

    I tried each module individually in each memory slot.

    Any guesses as to why its incompatible?
     
  2. T5BRICK macrumors 604

    T5BRICK

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    #2
  3. CoastalOR macrumors 68000

    CoastalOR

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    #3
  4. djc6 thread starter macrumors 6502

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    Cleveland, OH
    #4
    Since I switched from PCs to Macs in 2002, I've forgotten all about this since I stopped building computers then. But, it was my understanding that the faster ram I ordered would simply operate at the slower speed the mac uses. I did a few searches online about ram compatibility prior to purchase, and thats what I read.
     
  5. T5BRICK macrumors 604

    T5BRICK

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    #5
    It won't operate correctly in the 2009 and 2010 MBP models. My mid 2009 13" MBP would work with 1066MHz or 1333MHz RAM, but not 1600MHz. The 2010 models are pickier.
     
  6. Samuelsan2001 macrumors 603

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    Oct 24, 2013
    #6
    The 2010 will work with up to 1333Mhz however the chipset doesn't support 1600Mhz, whichever way you parse it you bought the wrong RAM.
     
  7. Knighstalker macrumors regular

    Knighstalker

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    In the Web
    #7
    Not to worry... You should be able to easily sell it to someone else!
     

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