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Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

iMac - iMac Freeze


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adrianmoore

 
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Member Since: Feb 03, 2007
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Mac Specs: G5 dual 1.8 / G4 Dual 867 / iBook G3

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Got an iMac G5 here ( 2Ghz 512Mb Ram OS X.4.8 )
It keeps freezing up, sometimes right after booting up, very often when waking from sleep, did the apple test, and it froze ( on memory test )

So bought new 512mb ram and took old out...and it still locks up.

Run TTP and the TTP Protege on it, finds no problems , OR it locks up before it completes test.

I'm guessing Logic board or video, anyone think i'm correct, certianly if its logic board then its heading towards the bin!
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MacHeadCase
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Hmm.

Did you check this Apple Support page, Adrian? iMac G5 Repair Extension Program for Power Supply Issues.

Your specs sound like your Imac is in that repair program.
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adrianmoore

 
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Nope, thats only for 20" iMac , this baby is the 17"
Currently it is running fine off a firewire drive with tiger and TTP running, But every now and again it will just lock solid....i'll keep at it, but i'm more of a mind that it is Logic Board
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MacHeadCase
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Did you try Apple's Hardware Test? Although some people say it isn't very accurate... TTP is probably much better at this anyway. Is it still under warranty?
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SpindleX

 
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If it runs perfect off a external drive then the Hardware is fine most likely. So, most likely it is System Software, I'd do a 'archive n install' or 'erase n install' if your willing to wipe your data.
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adrianmoore

 
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Hi thanks SpindleX, Nope it also locked solid runnnig off the firewire drive too
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MacMania55

 
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It could be the logic board or some bad ram. Take out all the ram and put in some you know is working well.

MacMania55
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adrianmoore

 
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Yes, i have another iBook here, will "nick" its memory and see what happens!
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