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

PowerPC G5 Freeze with Pattern


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JoSadie

 
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I have an iMac G5 1.8 GHz powerpc that freezes and displays a pattern of horizontal and vertical lines over the entire screen. Just upgraded to Leopard few months ago. What could be causing this? Thanks.
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harryb2448

 
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Mac Specs: iMac i5 2.7GHz OS X.9.4 and OS X.10

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G'day and welcome to the forums, pity under such circumstances.

Indications are failing logic board and here is a similar post from Apple Discussions, same problem same model iMac:-


https://discussions.apple.com/thread...864&tstart=135

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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