MacBook Pro 2,2 RAM Limit

Discussion in 'MacBook Pro' started by strwrsfrk, Dec 10, 2012.

  1. strwrsfrk macrumors regular

    Joined:
    Mar 1, 2011
    Location:
    Arlington, VA, USA
    #1
    Does anyone know whether a MacBook Pro 2,2 will actually see 4GB RAM with Lion installed?

    My friend has a late 2006 MacBook Pro 2,2. It has 1GB RAM, and she would like to upgrade to Lion (min of 2GB). If possible, I'd like to put in a minimum of 4GB.

    But most of the resources online say the machine will only address 3GB. This appears to have been due to 32-bit limitations of the OS at the time (as the Intel chipset supports 4GB addressable), so unless there's specifically some hard-coded limitation, Lion should be able to properly address 4GB, right?

    Thanks in advance, and sorry if this has been answered elsewhere; I couldn't find it in any thread.
     
  2. strwrsfrk thread starter macrumors regular

    Joined:
    Mar 1, 2011
    Location:
    Arlington, VA, USA
    #3
    The concern comes down to the "System Overlap" issue discussed in this article. I thought this was due to 32-bit limitations, which should have been cleared up as Mac OS moved to a unified 64-bit architecture, hence my confusion.

    It sounds like ~3.3GB is about as far as it will go regardless, though. Shame (though if anyone else has ideas, I'd still love to hear them).
     
  3. Interstella5555 macrumors 603

    Interstella5555

    Joined:
    Jun 30, 2008
    #4
    I used 4 in my Rev 1, I would imagine a Rev 2 would take it.
     

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