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  1. #1


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    G4 466 Digital Audio... power supply
    Hey guys, I'm picking up yet another Mac to add to my collection... a 466MHz Digital Audio tower. The downside is the power supply is bad. What I am wanting to know... is this something I can repair? I know how to solder and such, and I am wondering if I can take apart the power supply and fix it, or is this a case of just replacing the power supply?

    Thanks!
    -William
    Late 2015 27" iMac Retina - 3.2GHz i5 - 8GB - 256GB SSD - R9 M380 GPU
    Former - Late 2012 Mini

  2. #2

    pigoo3's Avatar
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    Quote Originally Posted by MacMan886 View Post
    Hey guys, I'm picking up yet another Mac to add to my collection... a 466MHz Digital Audio tower. The downside is the power supply is bad. What I am wanting to know... is this something I can repair? I know how to solder and such, and I am wondering if I can take apart the power supply and fix it, or is this a case of just replacing the power supply?

    Thanks!
    I would bet that if you can accurately identify the part or parts in the power supply that are bad...if you are good with soldering/desoldering...and if you can locate a source for replacement parts...I'm sure it can be repaired. But like anything with old computers...is repairing it the best route financially.

    Alternative routes could be:

    - locate a cheap used replacement power supply
    - locate a 2nd non-working Powermac G4 that uses the same power supply (power supply is good)...if you're lucky, these can be found for $10-$20 bucks. Actually working or not working these can be found for around $20 bucks.

    Repairing the current non-working power supply would seem to be the least expensive option...and be the most satisfying from a "project" standpoint...but the replacement parts might actually cost you more than a whole working 2nd Powermac G4.

    HTH,

    - 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

    harryb2448's Avatar
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    Here is a post on using an ATX power supply in a D.A. ATX power supplies are extremely cheap:-


    How to use ATX power supply in Gigabit/Digital Audio - MacRumors Forums


    http://www.atxpowersupplies.com/
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  4. #4


    Member Since
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    Late 2015 27" iMac Retina - 3.2 i5 - 8GB - 256GB SSD - R9 M380 GPU
    Hmm... thanks for that link. However I found a guy that sells the conversion harness for $20. Can't beat the deal... I'm getting the computer for free, plus I already have a 375w ATX powers supply in my closet.

    http://atxg4.com/

    Even with that, I may attempt pulling apart the supply myself to find the cause of the failure.. it's obviously a common thing that may be fixable...
    -William
    Late 2015 27" iMac Retina - 3.2GHz i5 - 8GB - 256GB SSD - R9 M380 GPU
    Former - Late 2012 Mini

  5. #5

    pigoo3's Avatar
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    Quote Originally Posted by MacMan886 View Post
    Hmm... thanks for that link. However I found a guy that sells the conversion harness for $20. Can't beat the deal... I'm getting the computer for free, plus I already have a 375w ATX powers supply in my closet.
    See that's what I'm saying. For $20 bucks you might get lucky & be able to buy a whole used Powermac G4. This past Summer I bought a Powermac G4 733mhz for $30 (with a printer & and a copy of 10.4, and extra ink). Last Friday I got a 500mhz G3 iMac for $15.

    But in the grand scheme of things...$20 isn't too bad.

    Good luck,

    - 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

  6. #6


    Member Since
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    Late 2015 27" iMac Retina - 3.2 i5 - 8GB - 256GB SSD - R9 M380 GPU
    Picked it up today, and yes, the power supply is dead. Plugged a cord into it and I can hear the little zap you always get when you plug a cord in, but nothing when I hit the power switch.

    Actually, does anyone know what the rated wattage is for this power supply? It doesn't say on the supply what the total is.
    -William
    Late 2015 27" iMac Retina - 3.2GHz i5 - 8GB - 256GB SSD - R9 M380 GPU
    Former - Late 2012 Mini

  7. #7

    Mac SK's Avatar
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    Quote Originally Posted by pigoo3 View Post
    See that's what I'm saying. For $20 bucks you might get lucky & be able to buy a whole used Powermac G4. This past Summer I bought a Powermac G4 733mhz for $30 (with a printer & and a copy of 10.4, and extra ink). Last Friday I got a 500mhz G3 iMac for $15.

    But in the grand scheme of things...$20 isn't too bad.

    Good luck,

    - Nick
    Like I saw a Ethernet G4 at the thrift store for $12.00 several weeks ago...have too many now and passed on it.

  8. #8

    pigoo3's Avatar
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    Quote Originally Posted by Mac SK View Post
    Like I saw a Ethernet G4 at the thrift store for $12.00 several weeks ago...have too many now and passed on it.
    I STILL have not seen one Mac at my local thrift stores. There must be something special about your location that so many Mac's show up at the thrift store!

    - 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

  9. #9


    Member Since
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    Specs:
    Late 2015 27" iMac Retina - 3.2 i5 - 8GB - 256GB SSD - R9 M380 GPU
    Same here... our thrift store workers around here take the good stuff for themselves and sell it on eBay. Best thing I ever found at a thrift store around here was a Apple mouse.
    -William
    Late 2015 27" iMac Retina - 3.2GHz i5 - 8GB - 256GB SSD - R9 M380 GPU
    Former - Late 2012 Mini

  10. #10

    harryb2448's Avatar
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    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

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