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 does my g5 not operate?

it started when it sleeps and does not come back on...then after a few minutes the fan gets louder and louder. now recently when the computer is powered on, the power light indicator for the tower and monitor turn on, but nothing on the display and also the fan gets louder after a while. what could be the issue?...

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First we need to know what machine this is. Is it an iMac G5 a Power Macintosh G5, a MacPro

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power mac g5 - 2.0 processor - 450 or 600 watt power supply

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Unless you have the ASD (Apple Service Diagnostic) disk to calibrate the fans, I would not recommend removing the processors. When my identical machine started doing this the video card was failing. First thing I would do is to pull the AGP card, clean the contacts and the card fan, if yours has one, and re-seat it. I would also take it outside and pull the lower fans and blow the whole thing out with compressed air. These babies move a lot of air to keep them cool and will build up a lot of dirt. Then also re-seat the RAM. This machine was not intended to be worked on by non-professionals and requires special programs provided only to Authorized Service providers to work on it. If the processors are pulled without the calibration software the fans will race at full speed.

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PRAM battery (3.6 volt lithium) should be getting near the end of its life. I would replace it.

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Good advice + Ralph

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If you have a dual G5, one of your processors may be bad. Take out each processor one-at-a-time and put the other processor in the 1st CPU slot.

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It may be a bad CPU socket or a bad CPU, switching the CPUs should help you troubleshoot that aspect at least.

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Can you give any documentation for doing that?

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it has a 450 watt power supply, but a retailer told me it was a 600 watt. i went ahead and replaced the power supply to a 600 watt, and also replaced the battery on the board but no progress.

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JOHN will be eternally grateful.
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