PowerMac G3 (B&W) Upgraded to a G4 CPU Can It Run Leopard?

Discussion in 'PowerPC Macs' started by MAC MAN JW, Dec 8, 2011.

  1. MAC MAN JW macrumors 6502

    MAC MAN JW

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    #1
    Hi, i got this g3 at a flea market for $10 this summer it has a G4 450MHZ upgraded CPU in it, it did not come with a hard drive or ram so i put a old 40Gb Hd in it and got a Gig of pc133 ram off ebay for $10. only thing not so good is the ati rage 128 GL it works fine but it is a little slow. it runs fast under tiger but now i want to push it to Leopard:D i seen a youtube video of leopard running on a g4 upgraded Powermac 8500, so i know it can be done on my g3 (g4) i just need a little help on how to get leopard to install:D i have a retail Leopard DVD and have a spare combo drive from a dead emac i can use in the g3. this mac was the 350Mhz version before it was upgraded. :)
     
  2. SuperJudge macrumors 6502

    SuperJudge

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    #2
    Use LeopardAssist and you're in like Flynn. Be sure to turn off as much eye candy as you can. PCI graphics cards are a little painful without doing that. Additionally, you probably won't be able to use Time Machine since it requires Quartz Extreme to work due to the needless animations when entering it. Go figure.

    Best of luck!
     
  3. MAC MAN JW thread starter macrumors 6502

    MAC MAN JW

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    #3
    Thank you!:) i will be trying it in the next few days first i have to backup my 18GB of music\Programs\documents with USB 1.1 to a 32GB USB Flash:eek:
     
  4. Hrududu macrumors 68020

    Hrududu

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    #4
    Grab a PCI Radeon 7000 off eBay and install that. They're cheap and some even have 64MB of VRAM.
     
  5. zen.state, Dec 8, 2011
    Last edited: Dec 8, 2011

    zen.state macrumors 68020

    zen.state

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    #5
    Good idea but a Geforce 5200 PCI would be better as it would support core image also rather than just quartz extreme like the 7000. That is very beneficial with Leopard specifically. It would be about the same price.

    MAC MAN JW:

    LeopardAssist like SuperJudge recommends is the best path to getting Leo to run. From your post you sound like a guy that can get a lot out of hardware so the Leopard experience on a G4 450MHz will be decent I'm sure.

    A B&W G3 will get a lot more out of a G4 upgrade than an 8500 and OS X will perform better for sure.
     
  6. MAC MAN JW, Dec 8, 2011
    Last edited: Dec 8, 2011

    MAC MAN JW thread starter macrumors 6502

    MAC MAN JW

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    #6
     
  7. Imixmuan macrumors 6502

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    #7
  8. Intell macrumors P6

    Intell

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    #8
    Leopard requires a G4. The B&W G3 is nearly identical to the early PowerMac G4's but with a G3 card. A simple swap of the CPU and it'll work with no problem.
     
  9. zen.state macrumors 68020

    zen.state

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    #9
    I had a B&W G3 upgraded to a G4 600MHz back in 08-09 that I ran Leopard on thanks to Leopard Assist.
     
  10. zen.state macrumors 68020

    zen.state

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    #10
    Just want to clarify that only the Yikes (PCI graphics) which was a 3 month temporary solution is similar to the B&W G3. The Sawtooth (AGP graphics) is an "early PowerMac G4" but it's logic board is far more advanced and has a totally different CPU socket. Same 100MHz bus but the memory runs 3x faster.
     
  11. goMac macrumors 603

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    #11
    LeopardAssist probably works, but I just wanted to point out the Yikes G4 was not supported by Leopard either.
     
  12. zen.state macrumors 68020

    zen.state

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    #12
    The only stock G4 towers that are Leopard supported are the upper half of the Quicksilver's and the MDD. All the rest either need a CPU upgrade or Leopard Assist.
     
  13. MAC MAN JW, Dec 9, 2011
    Last edited: Dec 9, 2011

    MAC MAN JW thread starter macrumors 6502

    MAC MAN JW

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    #13
    i can not get it to work:( here is what i tryed first the combo drive out of the emac could not read the Leopard DVD so i put my Powerbook g4 in firewire target disc mode and the disc came up on the desktop then i used disc utility to make a image of the disc and put it on a old 80GB ata hard drive with the boot drive in my mac as well, It booted to a KP saying "Unable to find Driver for this Platform "PowerMac 1,1" so i took out the main hd in the g3 and put it in my MDD G4 and installed Leopard it booted fine in the MDD. But when i put it in the B&W it kp. i also tryed the superdrive from the MDD in the G3 it read the disc but would not boot from it. The CPU is a G4 7400 Made by PowerPc MAX and the CPU Model Is 2,2 i did try Leopardasst but it would not boot to the dvd. Please Help Me i do not know what to do now:(

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  14. MAC MAN JW thread starter macrumors 6502

    MAC MAN JW

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    #15
    Thank you zen.state:) But it looks like i will have to stay with tiger:( the links i clicked on to get the kext files do not work. but someday if i find a working link i will for sure try it:)
     
  15. zen.state macrumors 68020

    zen.state

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    #16
    It's not the kext files at all that were linked to. He simply listed the different kext files that Leopard adds during the install over Tiger. The files you need are already on the disk.

    I know from personal experience that it can be done as I did it just for fun in 2008. The problem is that I forget most of what I did as it was just a one off thing for the hell of it so my mind wasn't in absorb mode.

    Since you have other more powerful Macs you could turn this into an ongoing project. Best way to learn is hands on and through trial and error. Thats how I learned everything I know about computers.
     
  16. MAC MAN JW thread starter macrumors 6502

    MAC MAN JW

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    #17
     
  17. zen.state macrumors 68020

    zen.state

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    #18
    I have the Leopard preview if you want me to grab those kext. I have about 3-4 different beta and then the retail.
     
  18. MAC MAN JW thread starter macrumors 6502

    MAC MAN JW

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    #19
    That would be Great:) Thank You!!!:D
     

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