Introduction
Replacing the fan.
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 three shown screws (red), then unplug its connection with the motherboard (blue).
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**Since both the processor and graphics processor unit are attached to this fan with thermal paste, removing the fan might require some force and a flathead screwdriver to separate the paste from the fan.
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