Can I upgrade to Mountain Lion on my iMac?

Discussion in 'OS X Mountain Lion (10.8)' started by Gass, Mar 28, 2013.

  1. Gass macrumors newbie

    Mar 28, 2013

    I have a question. I have a mid-2010 27" iMac. Model iMac11,3. I'm currently running Lion. Can I safely buy and upgrade to Mountain Lion? Will it work? Or does it work only on newer machines?

    Thanks for help.
  2. Ice-Cube macrumors 6502a


    Jul 27, 2006
    Somewhere over the rainbow
    I have the same model as you. It works fine with Mountain Lion. :)
  3. GGJstudios macrumors Westmere


    May 16, 2008
    Yes, you can.

    You can find specs on all Apple products, including maximum OS X version, by visiting

    System requirements for OS X Mountain Lion
  4. J71 macrumors member


    Jul 19, 2008
    Yes, you will not have problem running Mountain Lion on your Mac. I just recently updated both of my Macs to 10.8 and one was a 2008 24" iMac.
  5. MrMacMack macrumors 6502a

    Oct 24, 2012
    Depending on the apps you run, how much multitasking you do you along with how much memory you currently have installed, you may notice a slight degrade in overall performance. 2GB will work, but it will be slow. 4GB or higher will be a lot better.
  6. nightlong macrumors 6502a


    Jun 16, 2012
    My late 2007 iMac with 4 GB RAM is running ML as smooth as SL.
  7. Hermes Monster macrumors 65816

    Hermes Monster

    May 4, 2010
    I'm not sure of the specs on yours, but my 2010 21.5" suffers a little since upgrading to ML - I get the beach ball more and more with what used to be routine tasks.

    Also one of the main features I wanted to use (desktop mirroring) isn't available for my model, so may not be for yours - my fault for not reading up fully I guess :(

    If you can, I'd stick to Lion as long as possible, unless you really want iMessage and notification centre
  8. stchman macrumors 6502a

    Jul 16, 2012
    St. Louis, MO
    Did you do an upgrade or a clean install? I've heard clean installs are the way to go.
  9. Hermes Monster macrumors 65816

    Hermes Monster

    May 4, 2010
    Mine was an upgrade - the clean install seems like a lot of effort from what I've read :confused: if you have the time and the know how, then it may be worth a try
  10. DJLC, Apr 1, 2013
    Last edited: Apr 1, 2013

    DJLC macrumors 6502a


    Jul 17, 2005
    Mooresville, NC
    We've got four 2009 iMacs at work. Upgraded all of them to 8GB RAM, and they all run ML very well. Some were upgrade installs (from Lion, which was upgraded from SL), some were clean installs. Didn't seem to make any difference in my case.*

    *But before some smarta** pipes up, I know that it can make a difference. Sometimes.
  11. benwiggy macrumors 68020

    Jun 15, 2012
    A "Clean" install means wiping the disk, installing the OS, importing your data but NOT importing any of your old settings or preference files, and resetting everything manually.

    If you wipe the disk and migrate EVERYTHING, then there's no point in doing that as you've brought over everything that might be causing a problem.

    OS X is designed to upgrade "in place", leaving your user data, settings and apps alone. That's what it does by default.

    If you have a problem, and you've tried everything else, then maybe try a clean install. But whatever a clean install might fix, there are usually easier and quicker ways of making the same fix.

Share This Page