HP Pavilion g4-2000 HP Pavilion g4 Notebook PC - Maintenance and Service Guide - Page 79

PCH heat sink, Remove the top cover see

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PCH heat sink Description PCH heat sink Spare part number 683843-001 Before removing the PCH 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 31). 5. Remove the service door (see Service door on page 32). 6. Remove the optical drive (see Optical drive on page 33). 7. Remove the hard drive (see Hard drive on page 36). 8. Remove the keyboard (see Keyboard on page 43). 9. Remove the top cover (see Top cover on page 46). 10. Remove the system board (see System board on page 65). Remove the PCH heat sink: 1. Remove the two Phillips M2.0 x 3.0 screws (1) that secure the PCH heat sink to the system board. Component replacement procedures 71

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PCH heat sink
Description
Spare part number
PCH heat sink
683843-001
Before removing the PCH 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
31
).
5.
Remove the service door (see
Service door
on page
32
).
6.
Remove the optical drive (see
Optical drive
on page
33
).
7.
Remove the hard drive (see
Hard drive
on page
36
).
8.
Remove the keyboard (see
Keyboard
on page
43
).
9.
Remove the top cover (see
Top cover
on page
46
).
10.
Remove the system board (see
System board
on page
65
).
Remove the PCH heat sink:
1.
Remove the two Phillips M2.0 x 3.0 screws
(1)
that secure the PCH heat sink to the system
board.
Component replacement procedures
71