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Front USB board
Description Spare part number
Front USB board (includes front USB board cable) 449763-001
Before removing the front 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 47).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 52)
b. Optical drive (see
Optical drive on page 59)
c. Switch cover (see
Switch cover on page 61)
d. Keyboard (see
Keyboard on page 63)
e. Speaker assembly (see
Speaker assembly on page 66)
f. Display assembly (see
Display assembly on page 69)
g. Top cover (see
Top cover on page 75)
Remove the front USB board:
1. Disconnect the front USB board cable (1) from the ExpressCard assembly. The front USB board
cable is included with the front USB board spare part kit and is also included in the Cable Kit, spare
part number 448015-001.
2. Remove the silver Phillips PM2.5×5.0 screw (2) that secures the front USB board to the computer.
84 Chapter 4 Removal and replacement procedures