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USB board
Description Spare part number
USB board (includes USB board cable) 454941-001
Before removing the USB board, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4.
Remove the battery (see
Battery on page 40).
5.
Remove the following components:
a.
Hard drive (see
Hard drive on page 41)
b.
Optical drive (see
Optical drive on page 48)
c.
Keyboard (see
Keyboard on page 50)
d.
Switch cover (see
Switch cover on page 53)
e.
Display assembly (see
Display assembly on page 55)
f.
Top cover (see
Top cover on page 62)
Remove the USB board:
1. Disconnect the USB board cable (1) from the system board.
2. Remove the Phillips PM2.5×4.0 screw (2) that secures the USB board to the base enclosure.
66 Chapter 4 Removal and replacement procedures