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Posted on Dec 29, 2007

Unable to upgrade to system leopard on my eMac

I have an eMac at present running (system panther) and when I try to install system leopard I get the message--- mac OS x cannot be installed on this computer I also was given Illustrator CS3 as a Christmas gift and get the same warning message------------- Please help me!
John Johnston
power pc G4 (2,1) Memory-640mb CPU speed 700mhz

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  • trubluejohn Jan 02, 2008

    Thank you for your reply, it looks like that I will have to upgrade to a new computer............trubluejohn

  • opie440 Feb 08, 2008

    Leopard (mac OS X 10.5x) requires a minimum processor speed of 867Mhz, according to Apple specs. http://www.apple.com/macosx/techspecs/


    Sadly, my eMac 700Mhz is maxed out at 10.4.11.
    Although it is still an excellent OS!

  • canadore Sep 14, 2008

    I am getting the same message with my eMac. Except it is a 1.25 GHz, 768 MB RAM.


    This has system requirements for 10.5, but no luck.

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  • Posted on Feb 02, 2008
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I don't know that you necessarily have to get rid of your computer. I have a G4 circa 2000 with 400 MHz processor. I run Tiger OS 10.4.1 and can run Illustrator CS on my machine. 
It is not running at lightspeed mind you but it still works fine. 
There may be some interim updates that you need before going to leopard... I would try talking to someone at an apple store or call tech support about it. Apple is really good about customer service.  
Your eMac has to be "younger" than my tower G4 Gigabit Ethernet model so don't give up too soon. I don't think CS3 will use like 50% more resources compared to CS so your computer should be able to handle it. 
Good luck,

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  • Posted on Dec 31, 2007
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With software and computers changing constantly-I use older software for older macs. You will continuously run into problems dealing with new software and old computers. See if you can find older versions that still run great rather than the creative suite. Stick with earlier system software as well. Now days 640 for memory is not much because of the increase in software space use. You can also allocate memory to certain software you use most.

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