16 GB Memory Upgrade Not Working - 3 Beeps & OS Not Loading

Discussion in 'MacBook Pro' started by bhaffar, Jan 27, 2014.

  1. bhaffar macrumors newbie

    Joined:
    Oct 28, 2010
    #1
    Hello forum. Need your help please.

    I would like to upgrade my Mid 2009 13 inch MacBook Pro 2.53 GHz Intel Core 2 Duo Processor running OS X 10.9.1 Mavericks (MB991LL/A) to 16GB of Ram; it currently has Kingston 8 GB (2x4GB) 1067 MHz DDR3 Ram in it. I purchased 16GB of ram (Nanya?) from a ram seller on eBay and after I installed it in my laptop I got three beeps and the operating system wouldn't load. The funny thing I was able to upgrade to 16GB of memory (Micron?) on my Mac Mini Mid 2010 with 2.4 GHz Intel Core 2 Duo also running Mavericks. Just as an experiment, I took the 16gb of Micron memory out of the mac mini and put it in the MacBook Pro and it didn't work either - got the 3 beeps and the Operating System wouldn't load. Reset the pram and got same result - 3 beeps and os wouldn't load. So I put back the 8GB of Kingston in the macbook pro and all is well. Both mac mini and macbook pro use the same type and bus speed of ram sodimm pc3-8500 1066 mhz ddr3 so just wondering why the 16gb works in my mac mini and not in my macbook pro when both are running mavericks? I really don't think it's bad ram since the ram works in the mac mini but not the macbook pro. Thanks in advance for your assistance.
     
  2. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #2
    That Macbook does not support more than 8GB of ram.
     
  3. bhaffar thread starter macrumors newbie

    Joined:
    Oct 28, 2010
    #3
    Really? I thought with Mavericks update it could handle 16GB?
     
  4. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #4
    The OS doesn't make a difference. It's a limitation of the hardware/firmware.
     
  5. bhaffar thread starter macrumors newbie

    Joined:
    Oct 28, 2010
    #5
    Good to know. Thanks for the info.
     

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