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Thread: OS X on G3 iMac

  1. #1
    OS X on G3 iMac

    Member Since
    Mar 24, 2007
    Location
    Langebaan, South Africa
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    9
    Specs:
    Macbook wannabe
    OS X on G3 iMac
    Hi

    I recently got a 400MHz slot loading iMac G3 from a friend. I have set it up for my 4 year old daughter. It runs OS 9 but ideally I would like to install OS X. Unfortunately it only has 128 Mb RAM. I see that it takes SDRAM and as I have plenty PC SDRAM lying around, I was wondering if I could use it in the iMac? What is the specs of the SDRAM used in the iMac?

    Any assistance and helpful comments will be greatly appreciated.

    Thanks
    Cobus

  2. #2
    OS X on G3 iMac
    Brown Study's Avatar
    Member Since
    Mar 11, 2004
    Location
    Winnipeg
    Posts
    1,964
    Specs:
    G4 Tiger and OS 9
    A company selling RAM has this listing for an iMac G3: 168-pin PC100 SCRAM DIMM, but I hauled up only that one page. I doubt it would be wrong, though.

  3. #3
    OS X on G3 iMac

    Member Since
    Mar 24, 2007
    Location
    Langebaan, South Africa
    Posts
    9
    Specs:
    Macbook wannabe
    Thanks for the info. I have two 512Mb 168 pin PC133 SDRAM DIMM's lying around, do you think it will work? I assume it will just operate at PC100.

    Any chance of damaging something?

    Cobus

  4. #4
    OS X on G3 iMac
    Brown Study's Avatar
    Member Since
    Mar 11, 2004
    Location
    Winnipeg
    Posts
    1,964
    Specs:
    G4 Tiger and OS 9
    Quote Originally Posted by cvzyl View Post
    Any chance of damaging something?
    I'm the wrong person to ask. Maybe someone else with the knowledge will post an answer. Or the web might have the info. Try a search for imac g3 ram requirements.

  5. #5
    OS X on G3 iMac

    Member Since
    Mar 22, 2007
    Posts
    101
    Specs:
    imac G3 450MHZ 512 RAM DVD
    If it helps here is the ram in my imac G3:

    DIMM0/J13:

    Size: 256 MB
    Type: SDRAM
    Speed: PC133-333

    and

    DIMM1/J14:

    Size: 256 MB
    Type: SDRAM
    Speed: PC100-322S


    Both these collected from system profiler

    PC100 SDRAM (3.3 V, 64-bit, 168-pin, 100 MHz) according to lowendmac

    So the same as Brown Study

    I run a 450MHZ, 512 RAM in panther 3.9

    It will do fine for stuff like word and excell if you ever have to use it but if you are visiting educational sites with your daughter, playing their flash games and so on it may start to crawl.

    I know this one doesn't streaming video at all. It can really start to stutter

    Nice gift for your daughter though! They are fun little things, theres always OS 9 games, eh?

    One thing if your imac has it, at the bottom kind of hidden under a vent/grill you'll find a VGA out. If you need to use it this is great, or if your daughter starts to complain its too small (Do four yearolds go so deep into technology? I don't know!) mine is currently hooked up to a 21inch CRT (on it now)

    Good luck

  6. #6
    OS X on G3 iMac

    Member Since
    Mar 25, 2007
    Posts
    9
    just a thought, does your mac have a dvd drive? i just bought a g3 imac, and picked up os x on ebay, but am having to buy an external dvd drive to install the software, as the mac has a cd rom.

  7. #7
    MacHeadCase
    Guest
    Welcome to Mac-Forums, Eif!

    You can get Tiger on CD from Apple. They will charge you 9 or 10$ for it but it is possible to get it in CD form, much less expensive than buying an external DVD. :girl:

  8. #8
    OS X on G3 iMac

    Member Since
    Mar 22, 2007
    Posts
    101
    Specs:
    imac G3 450MHZ 512 RAM DVD
    Its up to you but you could always get panther? It works great - so does tiger but some features (Not including dashboard because it can easily be turned off) can really hold back a 400MHZ

    panther comes on CD but you'd be buying from somewhere like ebay

    Mine has a DVD drive, I think i'm wrong but only the DV models had DVD drives?

    External DVD drives can be expensive but a good investment if you need the write features (Yet another strain on the CPU and the speed of firewire or USB)

  9. #9
    OS X on G3 iMac

    Member Since
    Mar 25, 2007
    Posts
    9
    Quote Originally Posted by MacHeadCase View Post
    Welcome to Mac-Forums, Eif!

    You can get Tiger on CD from Apple. They will charge you 9 or 10$ for it but it is possible to get it in CD form, much less expensive than buying an external DVD. :girl:

    Hello..thanks for the welcome i will have a look into that, i have os x panther 10.3.5, so not sure if they would upgrade it to tiger, worth checking out though, thanks

  10. #10
    MacHeadCase
    Guest
    Going with Tiger is a whole new OS so you won't have an upgrade pricing. You can always look on eBay if you are looking for a bargain. Just make sure you buy it on CD.

    But Miffle does have a point. Panther was rock solid and is less demanding on hardware than Tiger is. There will be Tiger-only features that will not render on your machine because your graphics card is not supported. If you update Panther to version 10.3.9, you get a lot the benefits of having Tiger.

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