How to install Mac OS X 10.5 Leopard on a PowerMac G4 450 MHz Dual

How to install Mac OS X 10.5 Leopard on a PowerMac G4 450 MHz Dual

Mac OS X 10.5 can only be installed on a PowerMac G4 867MHz or better and any Intel Mac.

Here is how to install Mac OS X 10.5 Leopard on a PowerMac G4 450 MHz Dual, all you need to do is follow instruction on this video. Simple and easy. It takes about 1 hour to upgrade from Mac OS X 10.4.

FYI, the specs of this Power Mac G4 are : G4 450MHz Dual, 640 MB RAM, 80GB HD. The graphics card is stock ATI Rage 128 Pro 16MB of SDRAM occupies a 66 MHz PCI slot.

Twitter: addictedtomacintosh@MacAdict

For more links on Mac OS X Installations see below links:-

How to Format and Reinstall Mac OS X 10.6

Create an external hard drive as a Mac startup disk

How to install Mac OS X 10.5 Leopard on a PowerMac G4 450 MHz Dual

How to Install Mac OS 9.2 on your Apple PowerMac G4

Upgrading Apple Power Mac G4 Cube 450MHz with Mac OS X 10.4 Tiger

How to install Front Row on Mac OS X 10.7 Lion

Installing Mac OS X Leopard 10.5 on Mac Mini G4 1.42GHz with 1GB RAM

Installing Mac OS 7.6 on Apple Power Macintosh 7100/80 in just 8 min

Install Mac OS X 10.3 ( Panther ) on Apple PowerMac G4

Video Rating: 4 / 5

Filed Under: Mac Operating System

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Comments (24)

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  1. adddictedtomacintosh says:

    +carmelina vuelvas sorry my friend, OS X 10.6 onwards only work on Intel
    Macs.

  2. adddictedtomacintosh says:

    @Justyse Whittaker you can find it on eBay at reasonable price, make sure
    it is the retail version, otherwise it may not work with your Mac

  3. Mr Drunk says:

    Can you install OS 9 onto a G4? I like to know so i can play some off them
    good old games i use to play when i was a kid lol

  4. TheamazingGrell says:

    I have iBook G4, PowePC G4 1.1 CPU Speed is 1.07 GHz L2 Cache (Per CPU)
    512KB memory is 512 MB bus speed is 133MHz boot rom version is 4.8.5f0,
    will Mac OS X Leopard 10.5 install it with Leopard Assist program? I
    downloaded the software on torrents and not going to get a blank DVD 8.5 GB
    disc intill Saturday that’s 2 days away now. Please respond as quickly as
    you can cause I want to upgrade my Ibook G4 to 10.5 and it’s a mac that my
    sister’s boyfriend gave me and it’s a 2003 model.

  5. F4T4L Gaming says:

    Does this give u app store?

  6. Stefano Barbieri says:

    I own a Power Mac G4 DP 450 Mhz. After loading the last version of
    Leopardassist, I let the mac reboot and try to load installation DVD… I
    get Kernel Panic: Unable to find driver for this platform: PowerMac
    3,3…..

  7. desmond julien says:

    thank for your help that was very good job…. 

  8. F4T4L Gaming says:

    Oh ok thx

  9. tashi says:

    please assist with this query– i do not see any one else in comment page
    with this problem—ok i downloaded from softonics the copy of 10.4 copied
    it dvd then put it into mac mini– so far so good the icon looks like a
    normal box package and says — MacOSXUpdCombo10.5.6.pkg i click on it and
    this appears— ( the installer package mac etc.etc. cannot be opened -the
    bill of materials for this package was not found ) so please explain what
    this means and can i get what it wants ? or is this pkg never going to
    install ? it was free by the way

  10. Alex Rezanov says:

    OH LOL SO MUCH INFORMATIVE TY

  11. skinnyboy14 says:

    do i need a cd

  12. carmelina vuelvas says:

    i have a Mac OS X version 10.5.8 Processor Dual 2 GHz PowerPC G5 memory 3GB
    DDR2 SDRAM….. i want to update to Snow Leopard but i cant any HELP for
    this!!!!!…what can i do ????? pleaseee help me! 

  13. Justyse Whittaker says:

    do we need to buy the original disc?

  14. Nickolas891 says:

    My mac book just shot out the dvd I put in any help
    

  15. Hisham Bawa says:

    i need help. im installing mac os x 10.5 on a windows pc. i erased my hard
    disk and made it a Mac Os Extended or something like that. it said 33
    minutes to complete and when it went to “about a minute” nothing happened.
    then i moved my mouse and clicked something and now some ball is spinning
    instead of a black mouse and nothing is happening. whats wrong with it?

  16. Cezo Garcia says:

    i have a power mac g4 model #m8570 pmg4 1.25 uni/256/80gb/combo/rv250/56k
    what operating system is it running on i don’t know please help

  17. adddictedtomacintosh says:

    you need doual layer DVD player because Mac Os X 10.5 Leopard DVD is more
    than 7 GB!

  18. adddictedtomacintosh says:

    Hi. G4’s are very cheap now, you are better off getting a G4 800 DP or
    better on ebay. I have seen people for 45pounds getting an MDD G4 1.42
    DP!!! Whatever you do make sure you get a DP (dual processor) and a good
    graphics card. All the rest you can manage. Out of curiosity, which Mac do
    you want to upgrade from?

  19. m t says:

    Will os x 10.5 install on a 2 GHz Intel Core 2 Duo?

  20. loquis says:

    Does it format all data ?

  21. adddictedtomacintosh says:

    Is your DVD player Dual Layer?

  22. Noah Sweet says:

    i fixed it its all good byt i have one ? how did you get the mac os x
    retail dvd i am running 4.11 on my emac and i am just wondering how??
    because ive tried getting mac os x 10.5 and it really hasnt been working
    for me

  23. adddictedtomacintosh says:

    See, Mac OS X 10.5 is a bit more than 7GB, on a Dual Layer DVD. Which Mac
    do you have?

  24. adddictedtomacintosh says:

    I never tried it, please let me know if it works.

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