Snow Leopard upgrade?

Discussion in 'iMac' started by tlime, Mar 27, 2012.

  1. tlime macrumors newbie

    Mar 27, 2012
    I have an iMac with Leopard version 10.5 and am trying to upgrade to Snow Leopard V6.3 but a prompt comes up saying Mac OS X 10.6 cannot be installed on this computer...
    Anyone have a reason why?
    I have enough memory ie. 2 gb and more than enough memory on my hard drive.

    Thanks and regards
  2. r.j.s Moderator emeritus


    Mar 7, 2007
    Which iMac?

    Are you trying to use a gray install disc?
  3. simsaladimbamba

    Nov 28, 2010
    What exact iMac do you have?
    To find out what Mac OS X version you run, click :apple: > About This Mac:
    To find out, what exact Mac model you use, click :apple: > About This Mac > More Info > Hardware Overview:
    To see a more elaborate image explaining the above steps, click here.
    To see a more detailed video tutorial showing the above steps, click here (2 MB, 23s, .mp4).​

    And what exact DVD do you use? Is it a grey Restore DVD, which will only work with the specific model it came with?
  4. GGJstudios macrumors Westmere


    May 16, 2008
    What disc are you using to install Snow Leopard? A retail disc, or a grey install disc from another Mac? The grey install discs that come with Macs are model-specific and will not work on other models. Also, 10.5 is your version of Mac OS X, not the iMac version.
  5. old-wiz macrumors G3

    Mar 26, 2008
    West Suburban Boston Ma
    The message "cannot be installed on this Mac" often means you have a restore disk for a different model. You need the retail disk, as GJ says.
  6. Grease2310 macrumors member

    Oct 15, 2007
    If memory served 10.6 dropped all PPC support, so if you have a non-Intel iMac that would be why.

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