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

Power Mac - Strange power button problem on my G4 dual ghz

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Member Since: Jun 14, 2007
Posts: 2
boze is on a distinguished road

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My G4 desktop has a predictably flakey power button.

The power button doesn't work, but if i unplug and replug the power cord then it'll work and the machine will boot up normally.

Then if I shut down and try it again the next day I'll experience the same problem.

I thought maybe the SAFT lithium battery had run down since I don't use this desktop as much anymore so I replaced it with a new one. This had no effect - everything is just the same.

I don't see what unplugging the power cord would have to do with the button on the front.

Any ideas on what's going on or how to fix it?

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Member Since: Apr 03, 2007
Posts: 301
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Mac Specs: Black MacBook 2GB, Mac Pro 2.66Ghz 3GB X1900.

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Sounds like it's latching somehow, either bad logic circuit or the button itself is stuck.
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Member Since: Jun 14, 2007
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boze is on a distinguished road

boze is offline
what's to be done about a bad logic circuit? would that account for it working each time if i unplug it?
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