This guide will help you in disassembling the power supply from your PowerMac.

  1. Pull on outer latch.
    • Pull on outer latch.

    • Lower door until it is level with your work surface.

    • Before working on the computer make sure it is not plugged into a power supply, then touch a metal object. This discharges static electricity, which could damage the computer.

  2. Remove the screw from each of the two niches on lower part of fan using the Phillips #1 screwdriver.
    • Remove the screw from each of the two niches on lower part of fan using the Phillips #1 screwdriver.

    • The fan housing will still be connected to the computer by a power cable which will be removed in the next step.

    • Remove the power cable from the fan and detach bracing.

    • Removing the faceplate.

      • On the inside of the case, find the two plastic tabs.

      • While depressing the tabs, remove the faceplate by pulling and rotating outward.

    • Remove the two screws on the front of the drive with the Phillips #1 screwdriver.

    • Pull the drive out to allow access to the power and ribbon cables. Do not fully remove.

    • Remove both the power and ribbon cable.

    • Remove the 3 hex screws on the back of the case.

    • Remove the single screw on the side of the power supply casing with the Phillips #1 screwdriver.

    • Remove power cable from the logic board.

    • Remove power cable from hard drive.

    • Pull the power supply out and towards yourself.

Finish Line

17 other people completed this guide.

Justin Petrilli

Member since: 01/21/2010

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Cal Poly, Team 13-24, Maness Winter 2010 Member of Cal Poly, Team 13-24, Maness Winter 2010


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One Comment

Had a nearby lightning strike, "scrammed" my Mac, but couldn't start it up afterwards. Google led me to the ifixit site ( where I should have gone first!) and your instructions got me going again. Granted, I had an identical, spare Macintosh so I was able to pull that power supply to replace the damaged one and not have to wait for a replacement, but your step-by-step made the swap fairly easy! Thank you! I am happy tonight!

Now to order the replacement.

Bill Pitts - Reply

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