4GB memory limit and snow leopard

Discussion in 'macOS' started by nicolivich, Jul 8, 2009.

  1. nicolivich macrumors newbie

    Joined:
    Jul 8, 2009
    #1
    i have a mac book pro ( 15 inch, 2.4ghz, late 08)

    the memory limit is 4 GB. Is this an OS limit which will be blown away with snow leopard, or is it a hardware limit, which will remain regardless of 64bit OS?

    other MBPs have 6 or 8GB limits, which makes me think they may be hardware related
     
  2. Hellhammer Moderator

    Hellhammer

    Staff Member

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    Dec 10, 2008
    Location:
    Finland
    #2
    It uses Santa Rosa chipset I think so it's limit is unofficially 6Gb. It's not software related, your MBP's memory controller can't handle more than 6Gb
     
  3. Eidorian macrumors Penryn

    Eidorian

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    Mar 23, 2005
    Location:
    Indianapolis
    #3
    The PM/GM 965 chipset has a 8 GB address ceiling but for some reason Apple doesn't allow you to address more than 6 GB.
     
  4. nicolivich thread starter macrumors newbie

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    Jul 8, 2009
    #4
    Unibody macbook, doesn't have santa rosa, or any centrino for that matter i dont think. NVidia hardware instead.
     
  5. Eidorian macrumors Penryn

    Eidorian

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    Mar 23, 2005
    Location:
    Indianapolis
    #5
    The addressing limit is still 6 GB.
     
  6. Hellhammer Moderator

    Hellhammer

    Staff Member

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    #6
    Oh, sorry, iMacs confused me, I think
     
  7. joehack macrumors member

    Joined:
    May 29, 2006
    Location:
    Zurich
    #7
    Dell had mobile workstation with 8GB on offer with the same chipset. So it I assume, it is an artificial limit by Apple.

    Has someone tested the Mac hardware with 8GB under Linux?
     
  8. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #8
    Way ahead of you.

    http://forums.macrumors.com/showthread.php?t=573906
     

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