Compaq 6730s HP Compaq 6730s and 6735s Notebook PC - Maintenance and Service G - Page 96

Heat sink

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Heat sink NOTE: The heat sink spare part kit includes replacement thermal material. Description For use only with HP Compaq 6735s Notebook PC models For use only with HP Compaq 6730s Notebook PC models For use only with HP Compaq 6730s Notebook PC models Spare part number 491613-001 491979-001 496679-001 Before removing the 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 50). 5. Remove the following components: a. Hard drive (see Hard drive on page 51) b. Optical drive (see Optical drive on page 59) c. Switch cover and keyboard (see Switch cover and keyboard on page 61) d. Speakers (see Speakers on page 66) e. Display assembly (see Display assembly on page 67) f. Top cover (see Top cover on page 74) g. System board (see System board on page 83) Remove the heat sink: NOTE: Steps 1 through 3 apply only to HP Compaq 6730s Notebook PC models with discrete subsystem memory on the system board. See steps 4 through 6 for removing the heat sink on HP Compaq 6730s Notebook PC models with Intel processor and UMA subsystem memory. See steps 7 through 9 for removing the heat sink on HP Compaq 6735s Notebook PC models with AMD processor and UMA subsystem memory. 1. Turn the system board upside down, with the audio connectors toward you. 2. Following the 1, 2, 3, 4 sequence stamped into the heat sink, loosen the four screws (1) around the processor. 88 Chapter 4 Removal and replacement procedures

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Heat sink
NOTE:
The heat sink spare part kit includes replacement thermal material.
Description
Spare part number
For use only with HP Compaq 6735s Notebook PC models
491613-001
For use only with HP Compaq 6730s Notebook PC models
491979-001
For use only with HP Compaq 6730s Notebook PC models
496679-001
Before removing the 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
50
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
51
)
b.
Optical drive (see
Optical drive
on page
59
)
c.
Switch cover and keyboard (see
Switch cover and keyboard
on page
61
)
d.
Speakers (see
Speakers
on page
66
)
e.
Display assembly (see
Display assembly
on page
67
)
f.
Top cover (see
Top cover
on page
74
)
g.
System board (see
System board
on page
83
)
Remove the heat sink:
NOTE:
Steps 1 through 3 apply only to HP Compaq 6730s Notebook PC models with discrete
subsystem memory on the system board. See steps 4 through 6 for removing the heat sink on HP
Compaq 6730s Notebook PC models with Intel processor and UMA subsystem memory. See steps 7
through 9 for removing the heat sink on HP Compaq 6735s Notebook PC models with AMD processor
and UMA subsystem memory.
1.
Turn the system board upside down, with the audio connectors toward you.
2.
Following the 1, 2, 3, 4 sequence stamped into the heat sink, loosen the four screws
(1)
around
the processor.
88
Chapter 4
Removal and replacement procedures