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Powermac G5 problems

When I start the G5 computer from cold, the light will come on but no chime so I hold the power button down and turn it off. I repeat this 1 or 2 times more then the chimes happen but no screen for 1 time then off and on again and the screen comes on.

It loads up sometimes to the grey or sometimes to the login screen before coming up with a multilingual message to hold down the power button and restart the computer. I have tried resetting the SMU, PRAM and NV RAM and it even had a 'Double' Kernel Panic in safe mode all from putting a different HDD from another computer in it. This computer I am having problems with is a Powermac G5 duel 2.3 cpu's 2005 the HDD is from a Powermac quad 2.5 late 2005.


Thanks

PowerMac, Mac OS X (10.5.8), 2.3GHz 2005

Posted on Aug 6, 2012 3:14 AM

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3 replies

Aug 6, 2012 2:40 PM in response to violetblossom

Kernel panics are usually caused by a hardware problem – frequently RAM, a USB device or a Firewire device. What external devices do you have connected? When trying to troubleshoot problems, disconnect all external devices except your monitor, keyboard and mouse. Do you experience the same problems?


To eliminate RAM being the problem, Look at this link: Testing RAM @ http://guides.macrumors.com/Testing_RAM Then download & use Memtest & Ramber.


Do you have an Apple Hardware Test disc (the AHT is on the Install/Restore DVD that came with your Mac)? Running the Apple Hardware Test in Loop Mode is an excellent troubleshooting step for finding intermittent hardware problems. It is especially useful when troubleshooting intermittent kernel panics. If Loop Mode is supported by the version of the Apple Hardware Test you are using, you run the Extended Test in Loop Mode by pressing Control-L before starting the test. Looping On should appear in the right window. Then click the Extended Test button.The test will run continuously until a problem is found. If a problem is found, the test will cease to loop, indicating the problem it found. If the test fails, be sure to write down the exact message associated with the failure.In some cases, RAM problems did not show up until nearly 40 loops, so give it a good run.


May be a solution on one of these links.


http://docs.info.apple.com/article.html?artnum=106227What's a "kernel panic"? (Mac OS X)


http://www.macmaps.com/kernelpanic.htmlMac OS X Kernel Panic FAQ


http://www.index-site.com/kernelpanic.htmlMac OS X Kernel Panic FAQ


http://www.thexlab.com/faqs/kernelpanics.htmlResolving Kernel Panics


http://www.macfixit.com/article.php?story=20060911080447777Avoiding and eliminating Kernel panics


http://macosg.com/group/viewtopic.php?t=80012-Step Program to Isolate Freezes and/or Kernel Panics


 Cheers, Tom 😉

Powermac G5 problems

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