The Power Macintosh G4 is series of personal desktop computers released by Apple in 1999, and sold through 2004. This page is for the M5183 designation.

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My computer shut off itself

I got this issue with my old powermac G4 EMC#1896, when I start the computer after a couples of minutes all of the sudden it shut off by itself..!!

then I wait, I turn it on again, and same happen again it goes off

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I would recommend reading over Re: Why, after falling, is this iMac cycling on and off? I wrote. It sounds like you have a slightly different situation, but the problem is likely very similar, and I suspect the solution would be the same.

In short, I suggest you clean out your computer, reseat the heatsink with some arctic silver and go from there.

If you use our ID-Your-Mac tool to find out what kind of G4 you have, I can likely give you an appropriate guide to open up your computer too.

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Carlos Santos will be eternally grateful.
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