3.Disconnect all external devices from the computer.

4.Remove the battery (see Battery on page 47), and then remove the following components:

a.Hard drive (see Hard drive on page 48)

b.Optical drive (see Optical drive on page 53)

c.Keyboard (see Keyboard on page 59)

d.Top cover (see Top cover on page 63)

Remove the USB board:

1.Disconnect the USB board cable (1) from the system board.

2.Detach the USB board cable (2) from the system board and base enclosure. (The USB board cable is attached to the system board and the base enclosure with double-sided tape.)

3.Remove the Phillips PM2.5×4.0 screw (3) that secures the USB board to the base enclosure.

4.Remove the USB board (4).

Reverse this procedure to install the USB board.

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Chapter 4 Removal and replacement procedures