HP Chromebook 11-ae000 Maintenance and Service Guide - Page 42

Heat sink, Remove the two Phillips M2.0×2.2 broad head screws

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Heat sink Description Heat sink (includes replacement thermal material) Spare part number 928840-001 Before removing the heat sink, follow these steps: 1. Turn off 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 the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer. 3. Disconnect all external devices from the computer. 4. Remove the keyboard/top cover (see Keyboard/top cover on page 18). 5. Disconnect the battery cable from the system board (see Battery on page 26). 6. Remove the WLAN module (see WLAN module on page 28). 7. Remove the system board (see System board on page 33). Remove the heat sink: 1. Turn the system board upside down with the front toward you. 2. Remove the two Phillips M2.0×2.2 broad head screws (1) that secure the heat sink to the system board. 3. Remove the heat sink (2). NOTE: The thermal material must be thoroughly cleaned from the surfaces of the heat sink and the system board components each time the heat sink is removed. Replacement thermal material is included with the heat sink and system board spare part kits. Thermal paste is used on the processor (1) and the heat sink section (2) that services it. 36 Chapter 5 Removal and replacement procedures

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Heat sink
Description
Spare part number
Heat sink (includes replacement thermal material)
928840-001
Before removing the heat sink, follow these steps:
1.
Turn
off
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 the power from the computer by
first
unplugging the power cord from the AC outlet, and
then unplugging the AC adapter from the computer.
3.
Disconnect all external devices from the computer.
4.
Remove the keyboard/top cover (see
Keyboard/top cover
on page
18
).
5.
Disconnect the battery cable from the system board (see
Battery
on page
26
).
6.
Remove the WLAN module (see
WLAN module
on page
28
).
7.
Remove the system board (see
System board
on page
33
).
Remove the heat sink:
1.
Turn the system board upside down with the front toward you.
2.
Remove the two Phillips M2.0×2.2 broad head screws
(1)
that secure the heat sink to the system board.
3.
Remove the heat sink
(2)
.
NOTE:
The thermal material must be thoroughly cleaned from the surfaces of the heat sink and the system
board components each time the heat sink is removed. Replacement thermal material is included with
the heat sink and system board spare part kits.
Thermal paste is used on the processor
(1)
and the heat sink section
(2)
that services it.
36
Chapter 5
Removal and replacement procedures