imac 17" flat panel g4 hardware test cd

this is driving me nuts- i am trying to get the imac to read the test cd that i wrote (from apple's site)- it does not pick it up, is there a special way in which the "693-4327-A".dmg file need to burned onto cd?

holding down C or any other key during bootup does not help

expert help would be great- thanks francois

mac pro 8 core 2.26 16gig ram (owc), Mac OS X (10.6.4), imac20, 2x mac mini, macbook pro 13", 1.5x imac g4 17", ipod touch 64gig

Posted on Oct 19, 2010 8:02 AM

Reply
7 replies

Oct 22, 2010 12:11 PM in response to francoisswa

There is a possibility the Apple Hardware Test version acquired through download
from that site, may not work in the model iMac G4 computer you have; these had
a newer test included with the computer in their original software packet disc set.

If one were to try & burn a .DMG file to a CD, you may have to see about using
the computer's version of Disk Utility since it can handle disk images and burns.
A test of the process would require a few extra blank media discs, since there is
a chance the first one(s) may not correctly record an expanded image on them.
In some instances, a .dmg could be burned to the CD media as-is, unopened.

I suspect you would need to get a set of original Apple software restore/install
disc software like that specific computer model shipped with, to get the A.H.T.

On startup, there usually is a hardware self-test, to a limited degree, in OS X.

Not sure how one would force-initiate the process from Terminal, or after a
Single User mode start-up. Using Terminal or its equivalent can be tedious &
requires some understanding of rules and processes in order to use it right.

What kind of hardware problems does the iMac G4 1.0GHz 17" LCD machine have?

{In MacTracker app, sometimes you can see where more than one version Mac
of a similar build year shows an Apple Hardware Test version number as being
the correct version for more than one model, in example, eMac and iMac G4 of
a certain year may appear to use the same AHT version. But they may need to
be on the model-specific original disc, in order to be used in each of those Macs.}

MacTracker has some Mac specs and can be helpful as a reference; as are some
online resources such as everymac.com's site. You download the former from their
site: http://mactracker.ca and it goes into the Apps folder, a link can be dragged in
to the Dock for easier access. Or an alias could be put into a folder of aliases for
those items not wanted in the Dock, so Apps folder would not need be open to run.

Upon referencing the copy of MacTracker I have in my computer here, I see there
is no second machine use of this iMac G4 1.0GHz Apple Hardware Test; and in
the build series of this specific iMac you state you have, there is one of three AHT
versions it may have shipped with, depending on the hardware configured in it:
AHT (iMac) 2.0, 2.0.1, 2.0.2

There may be some third party professional hardware test an expert may have in
their catalog of repair tools, or a pro set of such AHT versions a trained expert
would have invested in as part of their Apple training kit; so if you find qualified
help who has experience in these older G4 iMac models, maybe they could test it.

What does the computer do, that leads you to want or need to test the hardware?

Hopefully if it does need some hardware (maybe replacement hard disk drive, etc)
that's about it. The 'take apart' information pages available online cover some of it.

Good luck & happy computing! 🙂

Oct 22, 2010 1:40 PM in response to K Shaffer

ola mr. shaffer,

thanks for the very expert informative reply....... maybe i'm just too stubborn to let go of the old ppc technology, refusing the "most beautiful"? imac ( and most expensive to produce?) not to work?

i finally got hold of the original install disks, hardware test cd also (osx 9 i suspect)

imac bombs out after loading hardware test disc (pressing alt) but shows "misaligned memory"

terminal got me nowhere....... my limited knowledge prevails..

i have changed hard drive, swopped internal and user ram units, new power supply and internal battery- zapped pram & nvram?, the machine would still power up and run ok for a bit and then suddenly freeze, or the gray multi- language screen appears........... restart your computer.....

i could have bought a new mac mini for the money spent on sentiment...... let alone the time and challenge! spent on the machine

(and another dead imac 17 in a box)

ps- wasn't there a problem with some chinese firm supplying faulty power supply capacitor units to dell & apple earlier last decade?

EISH!

best regards and go well

francois

Oct 24, 2010 11:32 AM in response to francoisswa

Some examples of this computer series had issue with a failed logic board
and or components on the board that are not independently replaced; so
if the issue involves a problem here, the cure would be to get another L/B
from someone who has either a refurbished or repaired replacement unit
that has been correctly fixed and at least has a warranty of some kind.

Another idea, is be on the look-out for an iMac G4 1.25GHz 17" with
SuperDrive, USB2.0, AirPort Extreme card installed, speakers, etc.
in very clean condition and at not too high a price; a working example.
To get one from a private party who has upgraded and does not use
theirs may be an OK idea, unless you could get a great deal on one
that was tested repaired and had a new hard disk drive installed.

The last models with 1.25GHz PPC G4s also had seen some third-
party upgrades performed at a price, some years ago; one company
had offered a cpu replacement upgrade (replacement logic board)
service so the unit would be running a 1.9GHz G4 chip instead. But
nowadays, with newer-better-faster Macs and new software needs,
the idea of putting a lot into an older Mac isn't all that wise. Yet to get
a nice example of this series in working condition should not be costly.
I have one (and a working spare, plus a repairable parts machine, too.)

These machines probably may be too old to get a replacement disc set
original software from Apple sales/support, which would have a correct
version of the Apple Hardware Test on the disc set. But you could try
and call their main Sales support phone number with your computer's
serial number and model info at hand, and ask them if it's still available.
(I have the original disc set for mine, and unused Pro keyboard/mouse.)

I've found the effort to set up a Mini (G4 last model) and space required
from scratch, is way more than owning an iMac G4 (last model) in the
same space. While my Mini has a 19" Samsung LCD and other wires
in piles, and power supplies sitting about, it is not a space saving item.
And the Mini has BlueTooth and AirPort Extreme wireless, installed.
Otherwise it'd be a real hassle. I can print wireless; so the same printer
I use with the other Macs can is in service, and no additional wires.

If you can get a copy of the Technical Service Manual for your iMac G4
it may be of help to figure out how to troubleshoot a logic board failure.
And if the contributing post member, by name of 'spudnutty' now in ID
state is contacted, or sees your post, he may have other helpful ideas.

Good luck & happy computing! 🙂

Oct 31, 2010 4:46 PM in response to francoisswa

There are probably safer and more illuminating ways to use an
iMac G4, than letting incense get the best of it... one example:

• as a desk lamp with unique flexible arm:
http://www.hardmac.com/news/2009/11/04/how-to-recycle-an-imac-luxo
http://www.cultofmac.com/imac-g4-base-shines-on-as-desk-lamp/20457

Some had discussed using the computer as a display, but that can be
a tedious process to find parts to re-build a circuit inside the base for
a correct power supply and support hardware, to run a different LCD.
The native panel display uses stuff affixed to the original logic board.
And other panels are usually too heavy to hang on the arm, if they could.

With new LED bulbs, a 'very cool' lamp could be made from an iMac G4.
And if the panel were retained, perhaps a S.A.D. light, however the lumen
output would have to be higher and probably adjustable for a S.A.D. light.

Or find another computer with similar LCD panel damage and make a
frankensense monster-mac from two, so you'd have a working one...(?)

The last model iMac G4 with 17" (or slightly different 20") pivoting panel
which shared the processor 1.25GHz PPC G4 and USB2.0, AirPort Ext-
reme and the design, are probably worth hanging on to, or fixing up if
you can get into taking the time, and learn to work around the quirks.

And the iMac G4 has several things better about it, than the Mini G4.
(If you have to get an LCD, find speakers, make room for all the bits)
the Mini can take up more room and weigh more than an iMac G4 17.

Have fun, in whatever way the project takes you. However, a 'cold
smoke generator' put into the base that could use those newer
non-burning replaceable scented squares or other shapes, as seen
on TV ads, may be a safer device than burning incense sticks in it.

However, with some re-engineering effort, you could do most anything.

I'd tried to send this earlier, but the Discussions started acting up.
A copy of the post-in-progress had been saved as Draft. My final
original was lost. Oh well. Such is 'progress' when it relies on Ether.

Good luck & happy computing! 🙂

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imac 17" flat panel g4 hardware test cd

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