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PowerPC G4 switch-on problem


I have an older PowerPC G4. It refuses to switch on after it is switched off for some period of time. After pushing the power button it lights on for a second and then immediately switch off again. I have to make some pause and try again in some 5-10 minutes. Then after switching on it gives the well-known switch-on tone but after few seconds switches off again. And I have to repeat this again and again and finally it turns-on and start-up the system. After some 10-15 minutes of proper running it switches-off again...

I am almost 100% positive it is an hardware problem. As it is an older computer I am wondering if it all can be caused by its empty battery (small battery which is the part of the computer).

I hope you can help. Thanks a lot and best regards from Prague, Czech Republic.


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A dead battery would not cause this. I run older Macs with a dead batteries all the time. I would start by checking the power supply.

Posted on Dec 19, 2008

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Hi Branko
Rather than forking money out for a battery. There are a couple of things I really need to know first. Have you changed anything on the machine recently? What OS are you running. How much memory (ram) Size of hard drive.

As you are running quite an old mac these details are important to identify the problem.


Posted on Nov 19, 2008


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