HP Chromebook 14 G3 Chromebook model numbers 14- x000 through 14-x099 Maintena - Page 40

System board, Disconnect the WLAN antenna cables

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System board NOTE: The system board is equipped with an Nvidia CD570M 2.10-GHz quad core processor and a graphics subsystem with UMA memory and includes replacement thermal material. Description Equipped with 4.0-GB of system memory and 32-GB of eMMC primary storage for use only on computer models equipped with WWAN capability Equipped with 4.0-GB of system memory and 32-GB of eMMC primary storage for use only on computer models not equipped with WWAN capability Equipped with 4.0-GB of system memory and 16-GB of eMMC primary storage for use only on computer models equipped with WWAN capability Equipped with 4.0-GB of system memory and 16-GB of eMMC primary storage for use only on computer models not equipped with WWAN capability Equipped with 2.0-GB of system memory and 32-GB of eMMC primary storage for use only on computer models equipped with WWAN capability Equipped with 2.0-GB of system memory and 32-GB of eMMC primary storage for use only on computer models not equipped with WWAN capability Equipped with 2.0-GB of system memory and 16-GB of eMMC primary storage for use only on computer models equipped with WWAN capability Equipped with 2.0-GB of system memory and 16-GB of eMMC primary storage for use only on computer models not equipped with WWAN capability Spare part number 787731-001 787727-001 787730-001 787726-001 787729-001 787725-001 787728-001 787724-001 Before removing the system board, 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 unplugging the power cord from the computer. 3. Disconnect all external devices from the computer. 4. Remove the keyboard/top cover (see Keyboard/top cover on page 23). Remove the system board: 1. Disconnect the speaker cable (1) from the system board. 2. Release the ZIF connector (2) to which the display panel cable is attached, and then disconnect the display panel cable from the system board. 3. Disconnect the WLAN antenna cables (3) from the WLAN terminals on the system board. NOTE: The white WLAN antenna cable labeled "1/Main" connects to the system board "Main" terminal. The black WLAN antenna cable labeled "2/Aux" connects to the system board "Aux" terminal. 4. Disconnect the power connector cable (4) from the system board. 34 Chapter 5 Removal and replacement procedures

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System board
NOTE:
The system board is equipped with an Nvidia CD570M 2.10-GHz quad core processor and a
graphics subsystem with UMA memory and includes replacement thermal material.
Description
Spare part number
Equipped with 4.0-GB of system memory and 32-GB of eMMC primary storage for use only on
computer models equipped with WWAN capability
787731-001
Equipped with 4.0-GB of system memory and 32-GB of eMMC primary storage for use only on
computer models not equipped with WWAN capability
787727-001
Equipped with 4.0-GB of system memory and 16-GB of eMMC primary storage for use only on
computer models equipped with WWAN capability
787730-001
Equipped with 4.0-GB of system memory and 16-GB of eMMC primary storage for use only on
computer models not equipped with WWAN capability
787726-001
Equipped with 2.0-GB of system memory and 32-GB of eMMC primary storage for use only on
computer models equipped with WWAN capability
787729-001
Equipped with 2.0-GB of system memory and 32-GB of eMMC primary storage for use only on
computer models not equipped with WWAN capability
787725-001
Equipped with 2.0-GB of system memory and 16-GB of eMMC primary storage for use only on
computer models equipped with WWAN capability
787728-001
Equipped with 2.0-GB of system memory and 16-GB of eMMC primary storage for use only on
computer models not equipped with WWAN capability
787724-001
Before removing the system board, 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 unplugging the power cord from the computer.
3.
Disconnect all external devices from the computer.
4.
Remove the keyboard/top cover (see
Keyboard/top cover
on page
23
).
Remove the system board:
1.
Disconnect the speaker cable
(1)
from the system board.
2.
Release the ZIF connector
(2)
to which the display panel cable is attached, and then disconnect
the display panel cable from the system board.
3.
Disconnect the WLAN antenna cables
(3)
from the WLAN terminals on the system board.
NOTE:
The white WLAN antenna cable labeled “1/Main” connects to the system board
“Main” terminal. The black WLAN antenna cable labeled “2/Aux” connects to the system board
“Aux” terminal.
4.
Disconnect the power connector cable
(4)
from the system board.
34
Chapter 5
Removal and replacement procedures