Disassembling Power Mac G5 Motherboard

Member-Contributed Guide

Member-Contributed Guide

An awesome member of our community made this guide. It is not managed by iFixit staff.

This is a step by step guide.

  • Author: Michal
  • Time required: 30-40minutes
  • Difficulty: Moderate

I will teach you how to replace the motherboard

Image #1

Edit Step 1 Motherboard  ¶ 

  • Place your g5 on a suitable surface

  • Take out the power lead

  • Prepare two screw drivers; T10 and Phillips (T15 may be used in some instances)

  • Open the case by pulling the lock

  • Take out the plastic cover

Image #1

Edit Step 2  ¶ 

  • Remove the major fan located on the left side of the processor

Image #1

Edit Step 3  ¶ 

  • Locate a small fan containing a speaker on the upper left corner of the motherboard.

  • Pull it carefully

  • There are two connections, which are needed to be disconnected (second image)

Image #1

Edit Step 4  ¶ 

  • Remove the graphics card

  • Remove RAM

Image #1

Edit Step 5  ¶ 

  • Step 5 is about removing the cover which protects the processor from any outside damage

  • The cover is attached to four pins. In order to remove the cover, it has to be pulled towards the left.

  • CAUTION: There may be a plastic (rubber) pin (see Image 2), which was put in place for guarantee purposes, therefore before sliding the panel, you should locate and remove this pin

  • It can also be pushed from the inside (by lifting the bottom of the cover first) (see image 3)

Image #1

Edit Step 6  ¶ 

  • The next two steps will demonstrate how to remove the processor

  • It should look like this (image 1) when the cover has been removed.

  • Remove 8 screws shown on Image 2 and 3 (use T10 and T15 screw drivers)

  • The processor should now come out

Image #1

Edit Step 7  ¶ 

  • Disconnect the cable connected to the processor

  • Locate the side fan (right wall), push the pins and pull the fan

  • Disconnect the fan cable (red square) and the rest of yellows if possible

Image #1

Edit Step 8  ¶ 

  • Unscrew two phillips screws located on the bottom power supply cover

  • Remove the bottom screws which held the processor in place (four in total). This will help to take the cover out without damaging the motherboard

Image #1

Edit Step 9  ¶ 

  • The cover should now come out. It will require some bending and pay attention to the motherboard while performing this task.

  • Remove the connectors (as shown on image 2 and 3)

Image #1

Edit Step 10  ¶ 

  • Locate four phillips screws on the bottom of the g5

  • Remove them and pull the Power Supply.

  • Disconnect the connector from the power supply (image 3, hdd lead)

Image #1

Edit Step 11  ¶ 

  • Remove Red and Yellow marked screws

  • The Red are small black screws shown on the second image

  • The processor holding screws are marked as yellow and have to be removed

  • Green- pins which hold the motherboard in place

  • In order to remove the motherboard, pull it (as shown on the third image) It should now slide on the pins which are marked as green.

Image #1

Edit Step 12  ¶ 

  • The motherboard should now come out freely

  • Hope you enjoyed it, Michal Scrumpymacs

To reassemble your device, follow these instructions in reverse order.

For more information, check out the Power Mac G5 device page.

Required Tools

Phillips #1 Screwdriver

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T15 Torx Screwdriver

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