iMac G5 20" Model A1076 Fan Duct Replacement

The fan duct directs air across the heat sink on the logic board.

1 Edit Step 1 Rear Panel  ¶ 

Image 1/1: Loosen the three Phillips screws securing the rear panel to the iMac.

1 Edit Step 1 Rear Panel  ¶ 

  • Lay the iMac display-side down on a flat surface.

  • Loosen the three Phillips screws securing the rear panel to the iMac.

  • These screws are captive in the iMac. The center screw will stop turning after about 3.5 turns and the outer screws will stop turning after about 5.5 turns. Do not try to remove these screws from your iMac.

Edit Step 2  ¶ 

Image 1/2: Pull the rear panel toward yourself and remove it from the iMac.

Edit Step 2  ¶ 

  • Lift the rear panel slightly near the bottom of the iMac.

  • Pull the rear panel toward yourself and remove it from the iMac.

Edit Step 3 Fan Duct  ¶ 

Image 1/1: One 11 mm T10 Torx.

Edit Step 3 Fan Duct  ¶ 

  • Remove the following two screws:

    • One 11 mm T10 Torx.

    • One 10.6 mm T8 Torx.

Edit Step 4  ¶ 

Image 1/1:

Edit Step 4  ¶ 

  • Lift the fan duct out of the chassis.

Conclusion

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

Now that you've finished, share your repair story with others.

Write a story

One Comment

Some models (with light sensor) have only the two outboard screws.

Robert Huber - Reply