HP G72-b66US HP G72 Notebook PC - Maintenance and Service Guide - Page 89

Fan/heat sink assembly, Speaker assembly see

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Fan/heat sink assembly Description Fan/heat sink assembly (includes replacement thermal material) for use only with computer models with UMA graphics subsystem memory Fan/heat sink assembly (includes replacement thermal material) for use only with computer models with discrete graphics subsystem memory Thermal pad Spare part number 606013-001 606014-001 634363-001 Before removing the fan/heat sink assembly: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn on the computer, 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 disconnecting the power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see Battery on page 42). 5. Remove the following components: a. Hard drive (see Hard drive on page 43) b. Optical drive (see Optical drive on page 46) c. Keyboard (see Keyboard on page 54) d. Top cover (see Top cover on page 57) e. Speaker assembly (see Speaker assembly on page 60) f. Display assembly (see Display assembly on page 69) g. System board (see System board on page 75) Remove the fan/heat assembly (fan/heat sink appearance might vary): NOTE: Steps 1 through 4 apply only to computer models equipped with graphics subsystems having UMA memory. 1. Turn the system board right-side up, with the front toward you. ENWW Component replacement procedures 79

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Fan/heat sink assembly
Description
Spare part number
Fan/heat sink assembly (includes replacement thermal material) for use only with computer
models with UMA graphics subsystem memory
606013-001
Fan/heat sink assembly (includes replacement thermal material) for use only with computer
models with discrete graphics subsystem memory
606014-001
Thermal pad
634363-001
Before removing the fan/heat sink assembly:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn on
the computer, 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 disconnecting the power cord from the AC
outlet and then disconnecting the AC adapter from the computer.
4.
Remove the battery (see
Battery
on page
42
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
43
)
b.
Optical drive (see
Optical drive
on page
46
)
c.
Keyboard (see
Keyboard
on page
54
)
d.
Top cover (see
Top cover
on page
57
)
e.
Speaker assembly (see
Speaker assembly
on page
60
)
f.
Display assembly (see
Display assembly
on page
69
)
g.
System board (see
System board
on page
75
)
Remove the fan/heat assembly (fan/heat sink appearance might vary):
NOTE:
Steps 1 through 4 apply only to computer models equipped with graphics subsystems
having UMA memory.
1.
Turn the system board right-side up, with the front toward you.
ENWW
Component replacement procedures
79