Things You'll Need:
- Screwdriver Tweezers
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Step 1
Disconnect all cables that are attached to the computer, especially those that are connected to the power supply. Remove the case from the computer by taking out the screws and sliding it off the body, (You might not have to remove any screws.) You now have access to the main fan and power supply.
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Step 2
Unscrew the fan from the computer motherboard it is attached to. Remove the heat sink from the fan first, if one covers it. Remove the three or four screws holding the fan in place and remove the fan from the board.
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Step 3
If you are removing the power supply's fan, detach all cables that connect the power supply to the motherboard. Remember where each cable was connected. Remove the screws that are attaching the power supply to the PC in the back and remove the supply from the computer.
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Step 4
Open the power-supply cover by removing the top. Remove the screws on the back of the supply (surrounding the vent) that hold the fan in place. Then remove the fan.
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Step 5
Peel off the label in the center of the fan to reveal the shaft, which is held in place by a split ring. Remove the split ring from the shaft with a pair of tweezers or the tip of a pocket-knife blade. The split ring may be in the back of the fan. With the split ring removed, the fan blades will slide off the shaft.
