Removing the I/O board
Prerequisites NOTE Removing the I/O-board requires the coin-cell battery to be disconnected. the action of which resets the BIOS setup program's settings to default. It is recommended that you note the BIOS setup program's settings before removing the coin-cell battery.
Follow the procedure in
Before working inside your computer .
Remove the
base cover .
Remove the
display assembly .
About this task The following images indicate the location of the I/O board and provide a visual representation of the removal procedure.
Steps Peel the tape that secures the I/O-board cable to the I/O board.
Open the latch and disconnect the power-button cable (or fingerprint-reader cable, if applicable) from the I/O board.
Open the latch and disconnect the I/O-board cable from the I/O board.
Disconnect the coin-cell battery cable from the I/O board.
Remove the screw (M2x3) that secures the I/O board to the palm-rest and keyboard assembly.
Lift the I/O board off the palm-rest and keyboard assembly.
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