Apple iMac G5 Instruction

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iMac G5

Upper Fans, iMac G5, 20-inch

Replacement Instructions

Follow the instructions in this sheet carefully. Failure to follow these instructions could
damage your equipment and void its warranty.

Note: Online instructions are available at http://www.apple.com/support/doityourself/.

Tools Required

• Use the enclosed tool; Phillips #2 screwdriver or Torx-8 depending upon what type of
screws are present. Note: Torx screws are star-shaped as shown below.

Torx screw head

• Screw tray or equivalent to hold the screws

Part Location

034-3260 Rev. A

Important Things to Know

1. Some iMac G5 models will have silver-colored torx screws securing the fan, others will

have brass-colored Phillips #2 screws. Use the appropriate enclosed tool to remove
the fan screws.

2. Ground yourself when working on the computer. The procedure will show you how to

ground yourself.

3. Keep drinks and other liquids away from the area you are working on the iMac.

2 - iMac G5 Upper Fans, 20-inch

Opening the Computer

1. Turn off your computer by choosing Shut Down from the Apple ( K ) menu.

2. Disconnect all cables, and unplug the power cord from your computer.

3. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of the

computer and slowly lay the computer face down as shown.

iMac G5 Upper Fans, 20-inch - 3

4. Locate the three case screws circled below. You may have to lift the metal foot to

locate the middle case screw. Note: These screws are captive; they are part of the
display/bezel assembly and cannot be removed.

Using the tool provided, or a Phillips #2 screwdriver, loosen the three captive screws.
Turn the screws to the left until they stop turning. Don’t force the screws once they

stop turning .

5. Holding the back cover by the metal foot, tilt the cover up and lift it off the computer.

Set the back cover aside.

4 - iMac G5 Upper Fans, 20-inch

Removing the Upper Fans

1. Ground yourself before touching anything inside the computer. Touch the metal

surface (as shown below) on the inside of the computer to discharge any static
electricity.

Warning: Always discharge static electricity before you touch any parts or
install any components inside the computer. To avoid generating static
electricity, do not walk around the room until you have finished installing the
part and closed the computer .

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