8 GB RAM odd behavior

Discussion in 'MacBook Pro' started by zayde, Jan 5, 2011.

  1. zayde macrumors newbie

    Joined:
    Jan 5, 2011
    #1
    Hi Guys,

    I've been reading this site for a while now, first time I'm posting.

    I recently purchased 8 GB of RAM for my 2010 13" MBP. There are two 4 GB DDR3 PC3-10500 1333mhz sticks. When I install them in the laptop my computer does not get past the apple logo boot screen (the spinning disc freezes). However, I can boot into Windows (boot camp) without issues.

    Also, when I pair either of the 4 GB sticks with one of my old 2 GB stock sticks the laptop boots up fine in OS X. The system profiler registers it as 6 GB of 1067 mhz RAM (the stock sticks are 1067 mhz)

    Confusing...

    Do you guys have any idea what the culprit could be?

    Thanks

    zayde
     
  2. axu539 macrumors 6502a

    Joined:
    Dec 31, 2010
    #2
    it's probably the 1333 mhz ram causing issues. mbps use 1066.
     
  3. NickZac macrumors 68000

    NickZac

    Joined:
    Dec 11, 2010
    #3
    That hit the nail on the head. If you purchased it from anyone who directed you to believe that it is supposed to work in the MBP, then demand either a refund or replacement and do not accept 'you opened it so we can't do anything about it'.
     
  4. sydenham macrumors regular

    Joined:
    Dec 23, 2010
    #4
    Try resetting the Pram and see if that works.
     
  5. zayde, Jan 5, 2011
    Last edited: Jan 5, 2011

    zayde thread starter macrumors newbie

    Joined:
    Jan 5, 2011
    #5
    Thanks for the tips.

    I tried resetting the PRAM, no dice.

    It's odd because I've read about a few people who have successfully used 1333 mhz RAM in their MBPs.

    Also, I didn't want to create another thread for this, but any idea how the OCZ Agility 2 120 GB SSD fares compared to the more popular (in the forums) SSD models? (Intel X-25, OCZ Vertex etc.)?

    zayde
     
  6. sydenham macrumors regular

    Joined:
    Dec 23, 2010
    #6
    It was worth a try. Its bizarre how it will recognise your new ram as long as you have a stick of the old ram in there.
     
  7. aeboi macrumors 65816

    aeboi

    Joined:
    Sep 20, 2009
    Location:
    Bay Area
    #7
    people have reported problems with ram > 1066mhz
     
  8. aznguyen316 macrumors 68020

    aznguyen316

    Joined:
    Oct 1, 2008
    Location:
    Tampa, FL
    #8
    yup, I just got in on a slickdeal and made sure to search this site for problems. Several 2010 owners complained about 1333 not working so I went with 1066 for my 8gb ram for cheap. ftw.
     
  9. areyeng macrumors newbie

    Joined:
    Apr 3, 2011
    #9


    zayde,

    about the problem above, has it resolved already? i have the same problem as you. thanks.
     
  10. giza macrumors newbie

    Joined:
    May 13, 2011
    #10
    Same Problem With 1066MHz Sticks

    I'm having the same problem with two 4Gb, PC3-8500 DDR3-1066MHz sticks as well. I installed two of these sticks in my MacBook Pro 13 inch (2010 model), but it wouldn't boot up. I then re-installed one of my old 2Gb sticks and the MacBook Pro booted and showed 6Gb memory under System Profiler. So this problem isn't just limited to 1333Mhz sticks. Does anybody know what's going on here?
     
  11. colostp macrumors newbie

    Joined:
    Sep 20, 2011
    #11
    Same Problem with 1066

    I'm also experiencing the same problem with 1066.

    Thanks
     
  12. heisenberg123 macrumors 603

    heisenberg123

    Joined:
    Oct 31, 2010
    Location:
    Hamilton, Ontario
    #12
    maybe you model has a 6GB max? just a guess
     
  13. henry72 macrumors 65816

    henry72

    Joined:
    Jun 18, 2009
    Location:
    New Zealand
    #13
    Nope. It say 1333 on Apple website. I'm confused :confused:
     
  14. Naimfan macrumors 68040

    Naimfan

    Joined:
    Jan 15, 2003
    #14
    2010 and earlier MBPs use 1066 MHz RAM; 2011 MBPs use 1333 MHz RAM.
     
  15. henry72 macrumors 65816

    henry72

    Joined:
    Jun 18, 2009
    Location:
    New Zealand
    #15
    Oh sorry my bad :)
     

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