![](/images/new-backgrounds/1188020/18802053x1.webp)
Removing the I/O Board
1.Follow the procedures in Before Working Inside Your Computer.
2.Remove:
a.battery
b.base cover
c.hard drive
d.keyboard trim
e.keyboard
f.palmrest
3.Perform the following steps as shown in the illustration:
a.Disconnect the I/O board cable from its connector on the system board [1] [2].
b.Remove the screws that secure the I/O board to the computer [3].
c.Remove the I/O board from the computer [4].
Installing the I/O Board
1.Insert the I/O board to its place on the computer.
2.Tighten the screws to secure the I/O board to the computer.
3.Connect the I/O board cable to its connector on the system board.
4.Install:
a.palmrest
b.keyboard
c.keyboard trim
d.hard drive
e.base cover
f.battery
5.Follow the procedures in After Working Inside Your computer.
Removing the Display-Hinge Cover
1.Follow the procedures in Before Working Inside Your Computer.
2.Remove:
a.battery
b.base cover
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