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3. Remove the front USB board (3).
Reverse this procedure to install the front USB board.
ExpressCard assembly
Description Spare part number
ExpressCard assembly 432988-001
Before removing the ExpressCard assembly, 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)
Component replacement procedures 85