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G4 dual 1ghz not switching on

G4 dual 1ghz motherboard battery leaked and now the g4 is dead

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  • chazman2008 May 11, 2010

    Your battery leaked? i.e. there is residue from the battery on the motherboard?


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Many times if the battery on the motherboard dies, the computer won't startup at all. Try replacing the battery and push the tiny reset button on the motherboard and see if it will power on then.

Posted on Mar 17, 2008

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Sounds like possibly the motherboard has thrown in the towel.

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That means you have to reset the prm.Since you know the inside of the computer a little bit,remove the power open it again and carefully remove the battery.Press and hold that button(PRM) down for about ten seconds you know what this will do,yes it will reset the logicboard.Reinsert the battery put the computer back together and try again.

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No Apple-Certified Tech repairs boards at the component level, and no component-level repairs are authorized by Apple. You clearly have a serious problem in either your logic board or graphics card. An Apple Tech or Apple Store would perform tests on each suspect replaceable unit, identify the bad unit, and replace it with a good one. I sympathize with the fact that this type of service is unlikely in your country, but by the same token, you are not at all likely to find anyone who can provide you an answer to the particular question you are asking. Sorry.

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Hello, The power supply is part of the motherboard in the iMac G4, so it's hard to change it. The repair would certainly cost more than the price of your iMac. You can try to take off the small battery, and reboot it to see if it changes. To open the mac lay it down, screen on the table (on a t-shirt). Unscrew the four screws (they wont come out, so just unscrew them. Pull the screws and take off the silver plate. Then you'll have access to the inside. Good luck

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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.


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