Dell Inspiron 14 (3443, Early 2015) - Manual (Page 63)

4 Lift the latch and, using the pull-tab, disconnect the I/O-board cable
from the connector on the system board.
5 Disconnect the power-adapter-port cable and speaker cable from the
connector on the system board.
1 power-adapter port cable 2 power-adapter port
3 display cable 4 speaker cable
5 I/O-board cable
6 Remove the screws that secure the system board to the computer base.
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