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Q: G5 shuts down suddenly, does not reboot anymore

Hi,

 

I was just surfing the web, suddenly G5 shuts down, as if you would pull the plug.

If I press the power button, it won't reboot. I hear the apple startup chime, and about 5 seconds later, it shuts down again.

Nothing appears on the screen.

 

I've done this already:

- open the lid, removed some dust

- try to boot with all other hardware disconnected

- try to boot from FW800 lacie external HDD, with a recent clone of my system drive (made with Carbon Copy Cloner)

- take out battery for half hour

no results, still startup chime - then dead.

 

So I guess:

it should be a hardware error, since it won't boot from the external FW drive.

So it is probably the power supply or the motherboard.

 

correct? any other suggestions, that I can try before taking it to Apple repair service?

( I had a dead powersupply in 2007 in the same machine, costed me +300 euro)

 

Any help is appreciated.

Regards, A.C.

 G5 PPC dual 2GHz (june 2004 model) / 3.5GB RAM, Mac OS X (10.4.11)

Posted on Sep 1, 2011 12:51 PM

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