Corsair Mac Memory - Beeping After Replacing RAM on Late 2008 Macbook

Discussion in 'MacBook' started by minky1234, Dec 14, 2012.

  1. minky1234, Dec 14, 2012
    Last edited: Dec 14, 2012

    minky1234 macrumors newbie

    Joined:
    Mar 20, 2008
    #1
    I bought this RAM:

    http://www.memoryexpress.com/Products/MX34047

    I have read online that with the correct boot ROM (MB51.007D.B03) my computer should support 8gb of RAM.

    When I installed them and try to turn on my macbook I just get 3 beeps.

    I'm pretty sure this is the correct RAM, unless anyone can correct me? Is the RAM bad?

    Oh yeah and I also tried different combinations of the old RAM and new RAM, but the same thing happened until I put the stock RAM back..

    Thanks
     
  2. old-wiz macrumors G3

    Joined:
    Mar 26, 2008
    Location:
    West Suburban Boston Ma
  3. minky1234, Dec 15, 2012
    Last edited: Dec 15, 2012

    minky1234 thread starter macrumors newbie

    Joined:
    Mar 20, 2008
    #3
    Went back to the store with my Macbook, tried out 3 sets of Corsair RAM and all wouldn't work..

    Then switched for GSkill 8gb (2 x 4gb) PC3-10666 DDR3 1333 MHz and works perfectly! Not sure if Macbooks are picky with Corsair RAM.
     
  4. brop52 macrumors 68000

    brop52

    Joined:
    Feb 26, 2007
    Location:
    Michigan
    #4
    Yeah the G. Skill set works well in mine.
     
  5. chiefpavvy macrumors 6502a

    Joined:
    Feb 23, 2008
    #5
    The latest firmware is absolutely required to run 8GB in the late 2008 unibody MacBook.

    And there are some incompatibilities [with some RAM modules by some manufacturers], although I used Corsair modules with no problem. Remember that Corsair makes a zillion different model numbers and you probably just got unlucky with one that it doesn't like.
     

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