Hi,

The computer won't turn on. I changed the power supply and the battery, reset the pram. At the beginning, after few days, the powermac started up but after 3-4 hours it stopped. Now, it won't turn on anymore. Somebody believe in miracles?

Unplug the Processor several times and back in. Take out all RAM, and populate one single Bank. I personally had a case where the Switch-Board (Power on/off) was bad. Replacing it with a new one, solved the matter.

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