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The PowerMac G5 is a desktop computer first produced in 2003 by the Apple Corporation. This guide will review the repair process of an Apple PowerMac G5 model number A1047 EMC 2061 from 2004. It was discontinued in 2006 as part of the Intel switch first to developers then consumers.

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Why is my G5 not turning on?

This computer does not turn on when the power button is pushed, no lights, no fans, nothing. About 5 seconds after the computer is unplugged, the status led flashes briefly.

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This is one of the first things to fail on the G5 models.

Replace the power supply

Power Mac G5 Power Supply Replacement

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