HP Pavilion g4 Maintenance and Service Guide - Page 88

Remove the three Phillips PM2.5×5.0 screws, Disconnect the fan cable

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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 48), and then remove the following components: ● Optical drive (see Optical drive on page 49) ● Hard drive (see Hard drive on page 51) ● WLAN module (see WLAN module on page 54) ● Keyboard (see Keyboard on page 56) ● Top cover (see Top cover on page 59) ● System board (see System board on page 72) Remove the fan and heat sink: 1. Turn the system board upside down, with the front toward you. NOTE: Steps 2 through 4 apply to computer models equipped with an AMD processor. See steps 5 through 7 for heat sink removal information for computer models equipped with an Intel processor. 2. Disconnect the fan cable (1) from the system board. 3. Remove the three Phillips PM2.5×5.0 screws (2) and the three Phillips PM2.5×10.0 springloaded screws (3) that secure the heat sink to the system board. NOTE: Due to the adhesive quality of the thermal material located between the heat sink and system board components, it may be necessary to move the heat sink from side to side to detach it. 4. Remove the fan and heat sink (4). 80 Chapter 4 Removal and replacement procedures

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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
48
), and then remove the following components:
●
Optical drive (see
Optical drive
on page
49
)
●
Hard drive (see
Hard drive
on page
51
)
●
WLAN module (see
WLAN module
on page
54
)
●
Keyboard (see
Keyboard
on page
56
)
●
Top cover (see
Top cover
on page
59
)
●
System board (see
System board
on page
72
)
Remove the fan and heat sink:
1.
Turn the system board upside down, with the front toward you.
NOTE:
Steps 2 through 4 apply to computer models equipped with an AMD processor. See
steps 5 through 7 for heat sink removal information for computer models equipped
with an Intel processor.
2.
Disconnect the fan cable
(1)
from the system board.
3.
Remove the three Phillips PM2.5×5.0 screws
(2)
and the three Phillips PM2.5×10.0 spring-
loaded screws
(3)
that secure the heat sink to the system board.
NOTE:
Due to the adhesive quality of the thermal material located between the heat sink and
system board components, it may be necessary to move the heat sink from side to side to
detach it.
4.
Remove the fan and heat sink
(4)
.
80
Chapter 4
Removal and replacement procedures