HP Pavilion HDX9575LA HP Pavilion HDX Entertainment Notebook PC - Maintenance - Page 95

Video board heat sink

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Video board heat sink Description Video board heat sink (includes replacement thermal material) Spare part number 448176-001 Before removing the video board heat sink, 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 38). 5. Remove the following components: a. Hard drive (see Hard drive on page 45) b. Optical drive (see Optical drive on page 52) c. Keyboard (see Keyboard on page 54) d. Hinge cover (see Hinge cover on page 56) e. Rear cover (see Rear cover on page 57) f. Top cover (see Top cover on page 59) g. Subwoofer (see Subwoofer on page 72) h. System board (see System board on page 76) Remove the video board heat sink: 1. Turn the system board upside down, with the front toward you. 2. Disconnect the video board fan cable (1) from the system board. 3. Loosen the two Phillips PM2.5×9.0 captive screws (2) and the four silver Phillips PM2.0×5.0 captive screws (3) that secure the video board heat sink to the system board. Component replacement procedures 87

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Video board heat sink
Description
Spare part number
Video board heat sink (includes replacement thermal material)
448176-001
Before removing the video board heat sink, 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
38
).
5
.
Remove the following components:
a
.
Hard drive (see
Hard drive
on page
45
)
b
.
Optical drive (see
Optical drive
on page
52
)
c
.
Keyboard (see
Keyboard
on page
54
)
d
.
Hinge cover (see
Hinge cover
on page
56
)
e
.
Rear cover (see
Rear cover
on page
57
)
f
.
Top cover (see
Top cover
on page
59
)
g
.
Subwoofer (see
Subwoofer
on page
72
)
h
.
System board (see
System board
on page
76
)
Remove the video board heat sink:
1
.
Turn the system board upside down, with the front toward you.
2
.
Disconnect the video board fan cable
(1)
from the system board.
3
.
Loosen the two Phillips PM2.5×9.0 captive screws
(2)
and the four silver Phillips PM2.0×5.0 captive
screws
(3)
that secure the video board heat sink to the system board.
Component replacement procedures
87