Upgrading Firmware on G3 iMac for OSX

Discussion in 'Macintosh Computers' started by Harper, Jan 19, 2005.

  1. macrumors newbie

    Jan 18, 2005
    Tray loading Green and White iMac with 0S.8.6. with Apple iMac Open Fireware 3.0.f3 built.
    I have upgrade the RAM so it meets the requirements for OS.X.
    I am also in the process of installing a 40Gb Hard drive.

    I need to upgrade the firmware so I can installed OS.X onto it. How do I go about doing that?
  2. macrumors 68020


    May 18, 2004
    I think you have to upgrade to OS 9.1 or higher before you can upgrade to OS X

    check Apple's site for more info

    here's a link to their firmware updates:

    apple firmware updates

    actually installing the update is simple enough; download the installer and follow the instructions

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