Introduction
Use this guide to replace a fan for an IBM ThinkPad (Model T42). If your computer is making excessive noises, sounds louder than usual, or feels hot to the touch the fan may need to be replaced. The fans' purpose is to pull cooler air into the computer to cool the hot circuitry. A failing fan can cause your laptop to sound louder because it is working harder than it normally needs to. Before beginning the process of replacing the fan make sure that your device is fully turned off and disconnected from any external power sources.
What you need
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Using a Phillips #0 screwdriver, identify and unscrew the twenty screws located on the underside of the T42.
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Unscrew the four Phillips screws located on either side of the rear of the T42 (there are two located on each end.)
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Flip the laptop over and open the screen to access the keyboard and trackpad.
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Carefully maneuver the palm rest away from the keyboard, as both the keyboard and palm rest/trackpad will come off together.
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Starting from the bottom right, carefully pry off the bezel. Use a spudger or flathead screwdriver if assistance is needed.
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Unscrew the 3 screws on the copper heatsink.
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Now, unplug the connection to the motherboard..
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