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  1. #1

    brairden's Avatar
    Member Since
    Jul 24, 2010
    Dayton, Ohio
    2 iMacs, 1 MBP, 1 UMB, 1 mini
    Leopard 10.5 on a 800mhz G4? Good idea?
    I have been reading about people running 10.5.8 on these older G4s and there seems to be a lot of success with it. I have an 800mhz g4 iMac (1gb RAM) that is currently running 10.4.11, and I would love to put 10.5 on it (for itunes 10 and iphoto '09 compatibility). But, my gf still uses this computer almost daily. I don't want to slow it to a crawl.

    Anybody out there running 10.5.* on a slower G4 and finding it acceptable??
    15" 2.53ghz i5 MacBook Pro (2010) 8gb, 500gb HD - 60gb OWC SSD
    13" 2.4ghz MacBook Unibody (late 2008) 4gb, 250gb
    24" 2.4ghz Aluminum iMac (mid 2007) 3gb, 1tb
    mini 2.0ghz - 32gb iPhone 4

  2. #2

    pigoo3's Avatar
    Member Since
    May 20, 2008
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Quote Originally Posted by brairden View Post

    Anybody out there running 10.5.* on a G4 and finding it acceptable??
    Remember that "running 10.5 on a G4" can mean different things to different people. "G4 computers" can have as fast as a 1.67ghz processor on some Apple laptops, and dual 1.42ghz processors on some desktops....that's a BIG speed difference compared to the G4 computer you mentioned.

    Also realize that officially (according to Apple) need at least an 867mhz G4 processor to install 10.5 (you only have an 800mhz cpu). But there are supposed to be 3rd party installers to get around the 867mhz requirement.

    The slowest computer that I have running OS 10.5 is a 933mhz Powermac G4...and although it's no speed runs fast enough.

    Hope this helps,

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  3. #3

    Member Since
    Apr 09, 2009
    Ithaca NY
    13 inch alMacBook 2GHz C2D 4G DDR3, 1.25GHz G4 eMac
    With 1GB of RAM, you should be pretty good. I've got 10.5.8 on my fiancee's computer, it's a 1.25GHz G4 eMac with 512MB of RAM. Plus Time Machine is excellent, and probably worth any accompanying slow down.

  4. #4

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Nambucca Heads Australia
    iMac, i7 4GHz, 32GB memory, 1TB Blade Drive, OS X.13.4
    Whilst it is trial and error method, Google for a utility called LeopardAssist if you wish to experiment and see how others have done, however strongly suggest to avoid disappointment stick with Tiger OS X.4:-

    LeopardAssist | Download LeopardAssist software for free at

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