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

iMac - Hardware Test Errors


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mnugent

 
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Question: Just out of curiousity I ran the Apple Hardware test on my Intel iMac and it comes back with three different error messages each time I run it: 4MOT/2/40000004:0x3cdba710, 4MOT/2/40000004:0x3cc5BF90, and 4MOT/2/40000004:0x3c239410. I haven't been experiencing any problems with my machine at all...runs perfectly. Called Apple and they suggested I zap the PRAM and unplug. I did this but the error codes remain. Any ideas as to what these might indicate? If it's the logic board, which I suspect, how can my Mac still run perfectly without displaying any problems?
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narf1899

 
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hmm..im not sure what those error codes mean...but as long as ur machine still works properly, i wouldnt worry too much...

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novicew

 
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If you can get hold of TechTool Pro, you can do a much more detailed test.

This error is normally due to a problem with a fan. Have you experienced the iMac getting too hot. Consider taking it to a nearby Apple Store if the problem persist.
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mnugent

 
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Thanks for the replies...the fans have been whisper quiet, despite the machine being up and running and being put to sleep and rarely shut down. When I do reboot or shut down, restarts are super quick. And I spent the 99 bucks for Tech Tool Pro only to have it turn up nothing. I'm at a loss as to what these codes mean. Especially since no flakiness is occurring. Perhaps if I have free day I'll run it over to the Apple Store...in the meantime I'll just keep my fingers crossed.
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