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images appearing on screen and locking up Imac G5
I believe the video card on my Imac G5 has gone as it reveals many images all cross the screen which freezes the machine.
Now when I try to start up all I get is the grey apple logo and spinning gear - nothing more.
Is there a diagram showing where on the motherboard this video card is and can it be replaced.
Also how can the complete board be replaced and how much will it cost? please
Alan
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matthewfre
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as I recommended to Jharlow, open the back of the iMac and look for bulging or leaking capacitors, which may be the source of your problem.
If its the caps, there are shops that can replace these for a fraction of what a new board would cost.
The Average Cost of a replacement for this machine is about
$400-$500 USD
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jharlow
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Not an answer, but this sounds very similar to what I am experiencing with my 20" G5 iMac. Try booting in Safe Mode (hold down shift key while booting) and see what happens. It works for me. Apparently it disables the Quartz engine, and that is probably where the problem lies. I'm looking for an expert to help with this too...
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Ed85
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Same for me. Somehow it works in Safe Mode but not the fully booted mode. It's probably because Quartz is disabled, but is Quartz using another part of the card which is damaged? Must be, I suppose.
The thing is, if you are in Safe Mode then try restarting, sometimes I can't boot back into Safe Mode again because it doesn't even get that far. Makes me think that there is a temperature issue too.