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  1. #1

    Member Since
    Sep 10, 2011
    resurrecting old G5 need to ugrad OS 10.3
    Hello all you who know more than me.
    I dug out an old imac G5 desktop running 10.3.9, which won't run modern brouwsers. How do I upgrade to more current OS and what is the most current OS I can upgrade to?

    1.8 GHz
    1G RAM
    Power PC G5 (3.0) CPU
    600 MHz Buss
    Boot Rom Version: 5.2.2f4

    Thank you so much,

  2. #2

    MacDude121's Avatar
    Member Since
    Sep 22, 2010
    Black MacBook 2.2GHz C2D, 4GB Ram - iMac G4 700MHz, 512MB Ram
    You can upgrade to OS X 10.5 Leopard. Will cost you about $100 on Ebay.

  3. #3

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Modesto, Ca.
    iMac 2010 27" QuadI7 OS10.13 iMac 2008 OSX10.11, MBP Late2011OS10.13 , iPad Pro 10.5", iPhone 5s,
    Like MacDude said, 10.5.8. Ebay is probably your best bet.

    Also with Leopard 10.5 I would put in another Gig of RAM for 2GB. 1GB will work but it will be a lot smoother with 2.

  4. #4

    toMACsh's Avatar
    Member Since
    Jul 30, 2009
    Mac Mini (Late 2014) 2.6GHz Intel Core i5 Memory: 8GB 1600MHz DDR3
    But be sure you are buying a "retail" copy of Leopard. It is a black disc with a big X on it. Don't buy a grey disc. Those are machine specific and would have to be for your exact model to work.

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