HP Pavilion 14-c000 HP Pavilion 14 Chromebook Maintenance and Service Guide - Page 43

System board

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System board NOTE: The processor is included on the system board. The system board Thermal Material Kit, part number 680571-001, includes replacement thermal paste and pads. Description System board Spare part number 704989-001 IMPORTANT: Make special note of each screw and screw lock size and location during removal and replacement. Before removing the system board, follow these steps: 1. Shut down the computer. 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 20). 5. Remove the keyboard (see Keyboard on page 24). 6. Remove the top cover (see Top cover on page 27). 7. Remove the hard drive (see Hard drive on page 31). 8. Remove the USB board (see USB board/Audio jack on page 33). 9. Remove the WLAN (see WLAN module on page 34). After removing the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board: ● Memory module (see Memory module on page 40) ● RTC battery (see RTC battery on page 43) ● Heat sink (see Heat sink on page 45) ● PCH heat sink (see PCH heat sink on page 44) Remove the system board: 1. Disconnect the following cables from the system board: ● Display panel cable (1) ● Speaker cable (2) ● Fan power connector (3) Component replacement procedures 37

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System board
NOTE:
The processor is included on the system board.
The system board Thermal Material Kit, part number 680571-001, includes replacement thermal
paste and pads.
Description
Spare part number
System board
704989-001
IMPORTANT:
Make special note of each screw and screw lock size and location during removal
and replacement.
Before removing the system board, follow these steps:
1.
Shut down the computer.
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
20
).
5.
Remove the keyboard (see
Keyboard
on page
24
).
6.
Remove the top cover (see
Top cover
on page
27
).
7.
Remove the hard drive (see
Hard drive
on page
31
).
8.
Remove the USB board (see
USB board/Audio jack
on page
33
).
9.
Remove the WLAN (see
WLAN module
on page
34
).
After removing the system board, be sure that the following components are removed from
the defective system board and installed on the replacement system board:
●
Memory module (see
Memory module
on page
40
)
●
RTC battery (see
RTC battery
on page
43
)
●
Heat sink (see
Heat sink
on page
45
)
●
PCH heat sink (see
PCH heat sink
on page
44
)
Remove the system board:
1.
Disconnect the following cables from the system board:
●
Display panel cable
(1)
●
Speaker cable
(2)
●
Fan power connector
(3)
Component replacement procedures
37