Cannot boot Snow Leopard into 64-bit mode

Discussion in 'macOS' started by celticpride678, Oct 3, 2009.

  1. celticpride678

    Joined:
    Feb 15, 2009
    Location:
    Boston, MA
    #1
    I installed Snow Leopard last night and since, I have been trying to boot it into 64-bit mode. I have tried holding down the "6" and "4" keys at startup, but that did not work. Any ideas? Thanks.

    Late 2008 2.4GHz Aluminum MacBook
     
  2. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #2
    Are you sure your Mac is on the capable list?
     
  3. Hellhammer Moderator

    Hellhammer

    Staff Member

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #3
    MacBooks have problems booting into 64-bit kernel. IMO there's no reason to boot 64-bit because it won't make it faster
     
  4. celticpride678 thread starter Guest

    celticpride678

    Joined:
    Feb 15, 2009
    Location:
    Boston, MA
    #4
    I read that it is. It is running the EFI-64-bit firmware.

    I have heard of it being the same, but wanted to try it out myself.
     
  5. lewis82 macrumors 68000

    lewis82

    Joined:
    Aug 26, 2009
    Location:
    Totalitarian Republic of Northlandia
    #5
    You may want to download an utility such as this one...

    If it works, you can download this one if you want (I personnaly prefer preference panes to apps...).

    They're both free, so enjoy :)
     
  6. pdjudd macrumors 601

    Joined:
    Jun 19, 2007
    Location:
    Plymouth, MN
    #6
    I would echo the responses from others, unless you are 100% certain that your Mac is fully able to run everything hardware and software wise in 64 bit, I would advise you just use 32 bit mode for compatibility purposes and the fact that you won’t really gain anything as an end user performance wise. 64-bit programs work just fine in 32 bit mode.
     

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