HP Chromebook 11A G8 Education Edition Maintenance and Service Guide - Page 50

Heat sink, Remove the two Phillips M2.0×2.0 broad head screws

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Heat sink Table 5-8 Heat sink spare part information Description Spare part number Heat sink (includes replacement thermal pads. Replacement thermal pads are also available in the Thermal L92817-001 Pad Kit, spare part number L93823-001.) 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 24). 5. Disconnect the battery cable from the system board (see Battery on page 32). 6. Remove the WLAN module (see WLAN module on page 34). 7. Remove the system board (see System board on page 39). Remove the heat sink: 1. Remove the two Phillips M2.0×2.0 broad head screws (1) that secure the heat sink to the system board. 2. Remove the heat sink (2). Each time the heat sink is removed, thoroughly clean the thermal material from the processor component (1) and the surface of the heat sink (2). Replacement thermal material is included with the heat sink and system board spare part kits and in the Thermal Pad Kit, spare part number L93823-001. 42 Chapter 5 Removal and replacement procedures

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Heat sink
Table 5-8
Heat sink spare part information
Description
Spare part number
Heat sink (includes replacement thermal pads. Replacement thermal pads are also available in the Thermal
Pad Kit, spare part number L93823-001.)
L92817-001
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
24
).
5.
Disconnect the battery cable from the system board (see
Battery
on page
32
).
6.
Remove the WLAN module (see
WLAN module
on page
34
).
7.
Remove the system board (see
System board
on page
39
).
Remove the heat sink:
1.
Remove the two Phillips M2.0×2.0 broad head screws
(1)
that secure the heat sink to the system board.
2.
Remove the heat sink
(2)
.
Each time the heat sink is removed, thoroughly clean the thermal material from the processor component
(1)
and the surface of the heat sink
(2)
. Replacement thermal material is included with the heat sink and system
board spare part kits and in the Thermal Pad Kit, spare part number L93823-001.
42
Chapter 5
Removal and replacement procedures