6 Using the pull tab, disconnect the rear I/O cable (RUSBC1) from the I/O board.
7 Open the latch and disconnect the rear I/O-board cable (LAUOC1) from the I/O
board.
8 Disconnect the display converter cable (CONVERTER) from the I/O board.
9 Remove the cables from the routing guide on the I/O board.
10 Remove the four (M3x5) screws that secure the I/O board to the middle frame.
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