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USB/eSATA board
Description Spare part number
USB/eSATA board (includes cable) 493981-001
Before removing the USB/eSATA 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 following components:
a. Battery (see
Battery on page 41)
b. Optical drive (see
Optical drive on page 53)
c. Keyboard (see
Keyboard on page 55)
d. Switch cover (see
Switch cover on page 59)
e. Display assembly (see
Display assembly on page 70)
f. Top cover (see
Top cover on page 78)
Remove the USB/eSATA board:
1. Disconnect the USB/eSATA board cable (1) from the system board.
2. Remove the two PM2.5×4.0 screws (2) that secure the USB/eSATA board to the base enclosure.
3. Lift the left side of the USB/audio board (3) until the USB and eSATA connectors disengage from
the openings in the base enclosure.
4. Remove the USB/eSATA board and cable from the base enclosure.
82 Chapter 4 Removal and replacement procedures