21. Disconnect the IO Board cable,
the Bluetooth cable, and the DC
power cable from the system board.
23. Extract 2 screws from the heat
sink and lift it out.
25. Disconnect the LAN cable from
the system board.
27. Extract 2 hex screws from the
external VGA connector.
22. Disconnect the CPU fan cable
from the system board.
24. Extract 3 screws from the system
board, lift it up and turn it over.
26. Extract 4 screws from the IO
Board.
28. Lift the IO Board and the RJ11
connector out of the lower case.