Question about Apple iMac G5 Desktop

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Broken video card on iMac G5 PC

i have a G5 Power Pc that i bought new 3 years ago.
it just conked out last thursday night.
The authorized tech i took it to gave me this diagnosis after having it for 5 days.

"From the tech

Took a look at the 17" iMac G5, and it's video is a complete write off, it's not the LCD or the cable but the actual Video card on the motherboard, data could be migrated or cloned off.

We can move you to a another machine tomorrow - the data is fine.

There is no charge for diagnosis.

Least costly would be a G5 1.6 tower with a 17" monitor - we use some parts ( RAM and drive )and you keep KB and mouse

$585 including the parts swap"

I see that Apple. had lots of problems with the video card on these imacs. I am very upset that Apple didn't inform G5 owners about these time sensitive problems before they discontinued their G5 video repair extension program.
My question is:
is there a DVI (?) cable that i can use to connect my broken G5 to a G4 cube monitor so that I can still use it?
are there any alternatives?
Thank you so much who ever takes the time to answer me.

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  • 2 more comments 
  • amazing3rdpl Jun 17, 2009

    thank you but i need to know if a DVI adapter will work. Will connecting an adapter from my broken G-5 to a G-4 cube monitor allow me to access my data on the G-5? If yes, exactly which model adapter do i need?

  • amazing3rdpl Jun 17, 2009

    thanks but because my G5 has a broken video card on the motherboard, i can't see anything on the G5 screen so i won't be able to follow your instructions to connect to the G4 monitor.

    are there any solutions to the G5 broken video card motherboard other than junking it?

  • amazing3rdpl Jun 17, 2009

    thank you for your comment but the tech who wants to sell me another used G5 said he could migrate my data or clone it. why would this be any different than transferring data from an old mac to a new one like i did when i bought this hunk of junk?
    so does this mean there is no solution to my problem?

  • amazing3rdpl Jun 17, 2009

    thank you so much. you have given me hope. do most techs know how to do this? I don't suppose you are in the Toronto, Canada area??? ; )
    would you know of a tech up here that would be able to do this or can i pay you a fee to describe the process to a willing tech?
    i picked my imac up from the guy who said it was a write-off. he told me that this model cannot be connected to an external monitor. is that true? i feel so Mac jaded at the moment that it's hard to know what to do. thanks again for your encouraging help.
    thanks. j



5 Answers

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The onlu way to fix this problem is to get a video card or another motherboard.

Posted on Jun 18, 2009

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This mac can be repaired! There are capcitors on that mac that can be fixed and this mac will work like new again!!

I have fixed serveral like this and have done it for under $200 bucks. So this **** that you said can work again with $20 dollar caps and a little soldering skills, like i said take it from a mac pro I have done it made people happy and they did not spend $1100 for a new mac!


!. replace the caps you be a happy camper if you did!!

As I sure would like to be the garbage ca n to accept this beauty once it goes in!

Btw, I’m available to help over the phone in case u need at

Posted on Jun 17, 2009

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I have read all the comments and the questions you put up!!! Really appreciate, the desire to repair.....

To be really honest, there is no solution. You might have seen different forums offering you different solutions or tricks, However this is a hard core fact that " You cannot make use of that "....If you wish you can dump it, or keep experimenting which would result in more frustration.

There are ways, However those are costly affairs as it might cost you more than 500 bucks.It's for companies who have a lot of important data in the computer. It's not something we call 'Do it Yourself "....There are recovery specialist for Mac.

I do agree that they should have told you regarding the sensitivity, However that's the reason only 5% people love to go for iMac.

I hope you would agree to what i have said. There are so many forums, so many people guarantee you the success, but believe me , no one would work.I apologize, i am not negative, However i wanted to provide you with the hard core fact.

Rest on You.

Thanks for using "Fixya".

P.S - Always rate the solution.

Posted on Jun 17, 2009

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Connect using a hub through the ethernet connections... Turn off your Apple firewall to start with. Enable sharing. You can test your connection without permission problems by logging into both as 'root' then work backwards.make the G5 boot up 1st holding the T key and once you can see the FIREwire sign on the G5 boot up the G4 and you should have no problems and the G4 will see the G5 as a hardisk with firewire icon.

if ur still wanting to connect g5 to g4 with a cable u can try the adc to dvi cables.......
if u found me of any help ... kindly rate my service.... goodluck and have a nice day

Posted on Jun 17, 2009

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I too feel bad about apple, after reading through your problem. However, i have never sorted out yet anything like this in my mac, my experience with Apple been very nice so far.

I have found the dvi apple monitor adaptor for you from ebay.

good luck.

Posted on Jun 17, 2009

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Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

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Good luck!

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Hi I bought apple I mac G5 1.6mhz 80gb serial number W84457TKPP6 from eBay. I'm just wondering how I connect it to internet? Do I need dongle and if yes what do I buy? Thank you. Regards Alison.

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But suggest checking if the g5 has a wireless card installed in it first before buying a dongle.

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Thank you for contacting Fixya Support, I am glad to assist.

There are a few steps you can try to troubleshoot this issue:

Try a PMU Reset:
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* Reconnect just the power cable the keyboard, mouse and power cord, and then power your iMac G5 up.

* Check to see if the iMac boots up normally without power interruption.

* If the iMac G5 shuts off again, try these steps, another recommendation would be to remove all connections including the power cord, and lay the iMac G5 on soft cloth face down and with a philips screwdriver, remove the plate on the bottom of the iMac G5 where your RAM memory is located.
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Now remove each RAM card and then reseat (re-install) each card.

Restore the RAM card cover with your Philips screwdriver, reconnect your power cable, keyboard an
d mouse and turn on your iMac G5.

See if this second procedure helps if the first procedure does not work.

Let me know if this helps.



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It is best to check with an Apple store, assuming there is one within 100 miles or so, especially if you are under AppleCare, yet--unlikely. My 20" iMac G5 gave up the ghost a year ago. Their cost to repair/replace the logic board was >$800. I've heard 3rd party as low as ~$500. I decide to change to an MacBook 13" (Early 2009 white, then current) and love its convenience.
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Your Imac may be one of those affected by Apples purchase of inferior capacitators from Taiwan. If you are less than 3 years from the purchase date, apple will repair the problem for you for free. Just take the unit to your nearest local Apple Genius or tech. If you are outside of the repair extension guidelines, I have provided a link here which can show you or someone more skilled how to repair the problem. Ordering a new motherboard and power supply will set you back a lot of money, however the following guide and pdf give you step by step instructions on how to ressurrect your dead imac without speding more than $100.00. I was able to repair my imac using this guide and it was worth it to save a $2k computer that was only 3 1/2 years old. Check it out:

the following information (in italics and bold)  is taken directly from:  (this site is complete with instructions, manual and the full compliment of materials available at an extremely affordable and fair price. I took a chance and repaired my own, it is not as hard as it sounds1)

The iMac G5 Repair Extension Program for Video and Power Issues applies to first generation iMac G5 computers that have video or power-related issues as a result of a specific component failure. If your iMac G5 is exhibiting any of the symptoms listed below and your computer's serial number is within the noted ranges, your computer may be eligible for repair, free of charge. If Apple or an Apple Authorized Service Provider (AASP) determines that your iMac G5 computer is eligible as part of the program, the repair will be covered by Apple for up to three years from the original date of purchase even if your iMac G5 is out of warranty.

This is a worldwide Apple program.
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Which iMac G5 computers are affected by the iMac G5 Repair Extension Program for Video and Power Issues? 
The program is available for certain first generation iMac G5 models that were sold between approximately September 2004 and June 2005 featuring 17- and 20-inch displays with 1.6GHz and 1.8GHz G5 processors.

The affected iMac G5 computers have serial numbers where the first 5 digits fall into the ranges noted below.

Serial Number ranges:
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QP435xxxxxx - QP522xxxxxx 
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YD435xxxxxx - YD522xxxxxx 
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Where do I find the serial number of my iMac G5?
The 11-digit serial number is located on a label under the foot of the iMac G5. There is a bar code underneath the serial number.
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Is the iMac G5 Repair Extension program available for other Apple computers? 

This program applies only to the systems noted in this FAQ. Other versions of the iMac G5 line are not part of this program. Click here for more information on how to identify iMac G5 models

Free guide for how to repair the motherboard capacitors, rescue the hard drive and more.

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