
d
.
Keyboard (see
Keyboard on page 47
)
e
.
Switch cover (see
Switch cover on page 50
)
f
.
Display assembly (see
Display assembly on page 52
)
g
.
Top cover (see
Top cover on page 59
)
h
.
Power switch assembly (see
Power switch assembly on page 63
)
i
.
System board (see
System board on page 66
)
Remove the WWAN antenna board:
1
.
Remove the two Phillips PM2.0×4.0 screws
(1)
that secure the WWAN external antenna board to
the base enclosure.
2
.
Remove the WWAN external antenna board and cable
(2)
.
Reverse this procedure to install the WWAN external antenna board.
Fan/heat sink assembly
Description
Spare part number
Fan/heat sink assembly (includes thermal paste and thermal pads)
441143-001
NOTE:
To properly ventilate the computer, allow at least a 7.6-cm (3-inch) clearance on the right
side and rear panel of the computer. The computer uses an electric fan for ventilation. The fan is
controlled by a temperature sensor and is designed to turn on automatically when high temperature
conditions exist. These conditions are affected by high external temperatures, system power
consumption, power management/battery conservation configurations, battery fast charging, and
software applications. Exhaust air is displaced through the ventilation grill located on the left side
of the computer.
ENWW
Component replacement procedures 71