3.Disconnect the I/O cable from the system board and remove the screws that secure the I/O board to the computer. Remove the I/O board from the computer.
Installing the I/O Board
1.Place the I/O board in its slot and snap it in place.
2.Tighten the screws to secure the I/O board.
3.Connect the I/O cable to the system board.
4.Install:
a.system board
b.display assembly
c.speaker
d.palmrest
e.base corner covers
f.WWAN card
g.WLAN card
h.memory
i.base cover
j.
k.optical drive
l.keyboard
m.keyboard trim
n.hard drive
o.battery
p.express cage
q.SD card
5.Follow the procedures in After Working Inside Your Computer.
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