HP Chromebook Pro c640 G2 Maintenance And Service Manual page 47

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Table 5-12
System board descriptions and part numbers (continued)
Description
Intel Pentium G7505 processor, 8 GB of system memory, 64 GB of eMMC memory (models with a
fingerprint sensor)
Intel Celeron 6305 processor, 8 GB of system memory, 64 GB of eMMC memory (models with a fingerprint
sensor)
Intel Celeron 6305 processor, 4 GB of system memory, 64 GB of eMMC memory (models without a
fingerprint sensor)
Before removing the system board, follow these steps:
1.
Prepare the computer for disassembly (see
2.
Remove the bottom cover (see
3.
Remove the battery (see
4.
Remove the fan (see
5.
Remove the heat sink (see
Remove the system board:
1.
Disconnect the following cables from the system board:
Antenna cables from integrated WLAN module (1)
Camera cable (2)
Display cable (3)
USB board cables (ZIF) from USB board (4)
Keyboard backlight cable (ZIF) (5) (select products only)
Touchpad cable (ZIF) (6)
Keyboard cable (ZIF) (7)
Fingerprint reader cable (ZIF) (8)
Speaker cable (9)
2.
Remove the four Phillips M2.0 × 2.0 screws (1) that secure the system board to the computer.
Preparation for disassembly on page
Bottom cover on page
Battery on page
27).
Fan on page
32).
Heat sink on page
33).
26).
Component replacement procedures
Spare part number
M57280-001
M57269-001
M57268-001
26).
39

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