HP Pavilion 13-b000 Pavilion 13 Notebook PC Maintenance and Service Guide - Page 62

Heat sink, Turn the system board upside down with the front toward you.

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Heat sink Description Heat sink (includes replacement thermal material and 4 captive screws, secured by C-clips) Spare part number 768022-001 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 keyboard/top cover (see Keyboard/top cover on page 29), and then remove the following components: a. Battery (see Battery on page 35) b. WLAN module (see WLAN module on page 38) c. Fan (see Fan on page 41) d. Speakers (see Speakers on page 42) e. System board (see System board on page 52) Remove the heat sink: 1. Turn the system board upside down with the front toward you. 2. Loosen the four captive screws (1) 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. 54 Chapter 5 Removal and replacement procedures

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Heat sink
Description
Spare part number
Heat sink (includes replacement thermal material and 4 captive screws, secured by C-clips)
768022-001
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 keyboard/top cover (see
Keyboard/top cover
on page
29
), and then remove the
following components:
a.
Battery (see
Battery
on page
35
)
b.
WLAN module (see
WLAN module
on page
38
)
c.
Fan (see
Fan
on page
41
)
d.
Speakers (see
Speakers
on page
42
)
e.
System board (see
System board
on page
52
)
Remove the heat sink:
1.
Turn the system board upside down with the front toward you.
2.
Loosen the four captive screws
(1)
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.
54
Chapter 5
Removal and replacement procedures