Installing The Input/Output (I/O) Board - Dell Vostro 15-5568 Owner's Manual

c. WLAN card
3. To remove the I/O board:
a. Disconnect the I/O board connector cable from the system board [1] [2] [3].
b. Remove the screw that secures the I/O board to the system board [4].
c. Lift and remove the I/O board from the computer [5].

Installing the Input/Output (I/O) board

1. Insert the I/O board into the slot on the computer chassis.
2. Install the screw that secures the I/O board to the computer.
3. Connect the I/O board cables to the system board.
4. Install the:
a. WLAN card
b. battery
c. back cover
5. Follow the procedure in After working inside your computer
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