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updated2026-10-04 23:30

 
Power Mac G4 Quicksilver Power Supply Replacement
DevicePower Mac G4 Quicksilver
DifficultyModerate
Time10 - 15 minutes
Steps18
This guide is by Jacob Garcia on iFixit and is licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0. ByteRot mirrors it for non-commercial preservation: formatting changed and photos resized for old browsers; full-size photos and the text are on the FTP in /DOCS/REPAIR. Original guide >>

Removing the power supply of the Power Mac G4.

Tools: Phillips #0 Screwdriver; 2.5 mm Hex Key; Phillips #1 Screwdriver; 2.5 mm Hex Bit


Step 1
[step 1 photo]
• The handle to open your computer is located on top of the right side panel.

Step 2
[step 2 photo] [step 2 photo]
• Grab the circular handle and pull outward.

Step 3
[step 3 photo]
• Your computer is now open and ready for repair.

Step 4
[step 4 photo]
• The optical drive is in the top left corner of the case.

Step 5
[step 5 photo] [step 5 photo]
• There are four screws to be removed.
• The first screw can be seen in the first picture.
• The remaining three screws can be seen in the second picture.

Step 6
[step 6 photo]
• Remove the optical drive by pulling the drive away from the front of the computer and out.

Step 7
[step 7 photo]
• Detach the two cables attached to the back of the drive.
• NOTE: The flat ribbon cable can be detached by pulling the silver tab. The multicolored cable can be removed by grasping the plastic connector on either side and pulling with substantial force.

Step 8
[step 8 photo]
• The hard drive is located in the back right corner of the case.

Step 9
[step 9 photo]
• Remove the flat ribbon cable by pulling with substantial force.

Step 10
[step 10 photo]
• Remove the screw holding the hard drive to the computer.

Step 11
[step 11 photo]
• Pull the drive up and out of the computer.

Step 12
[step 12 photo]
• Remove the multicolored cable by grasping the plastic connector on either side and pulling with substantial force.

Step 13
[step 13 photo]
• The power supply is in the upper right corner of the case.

Step 14
[step 14 photo] [step 14 photo]
• There is a total of four screws to be removed.
• The first three can be seen in the first picture.
• The final screw can be seen in the second picture.

Step 15
[step 15 photo]
• There are three 2.5mm hex bolts located in the back of the computer that also need to be removed.
• A 3/32" Hex Key or Hex Driver, or a T10 Torx, are a bit small but may also work if gentle.

Step 16
[step 16 photo]
• Disconnect the power supply cables from the mother board by pressing in the tab on the back of the connector as shown.

Step 17
[step 17 photo]
• Before sliding out the power supply make sure to disconnect the cable to the big fan by pressing in the small black tab on the back of the black connector!
• Slide the power supply away from the back of the computer and pull it out carefully stringing the cables through the hole in the metal support.

Step 18
[step 18 photo]
• Your power supply is now free from the enclosure and is ready to be replaced.

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

Credit
This guide is by Jacob Garcia on iFixit and is licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0. ByteRot mirrors it for non-commercial preservation: formatting changed and photos resized for old browsers; full-size photos and the text are on the FTP in /DOCS/REPAIR. Original guide >>
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