System Board - HP Chromebook 14-db0 Series Maintenance And Service Manual

System board

NOTE: All system board spare part kits include a processor and replacement thermal material.
Description
Equipped with an AMD A4-9120C (turbo up to 2.2/2.5 GHz) quad core processor (2133 MHz, 8.0 MB L3
cache, 15 W), a graphics subsystem with UMA video memory, 4 GB of system memory, 32 GB of eMMC
memory, and the Chrome operating system.
Equipped with an AMD A4-9120C (turbo up to 2.2/2.5 GHz) quad core processor (2133 MHz, 8.0 MB L3
cache, 15 W), a graphics subsystem with UMA video memory, 4 GB of system memory, 64 GB of eMMC
memory, and the Chrome operating system.
Equipped with an AMD A4-9220C (turbo up to 2.2/2.5 GHz) quad core processor (2133 MHz, 8.0 MB L3
cache, 15 W), a graphics subsystem with UMA video memory, 4 GB of system memory, 32-GB of eMMC
memory, and the Chrome operating system.
Equipped with an AMD A6-9220C (turbo up to 2.2/2.5 GHz) quad core processor (2133 MHz, 8.0 MB L3
cache, 15 W), a graphics subsystem with UMA video memory, 4 GB of system memory, 64-GB of eMMC
memory, and the Chrome operating system.
Before removing the system board, 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 bottom cover (see
Battery (see
▲
When replacing the system board, be sure to remove the following components from the defective system
board and install them on the replacement system board:
Heat sink (see
●
Remove the system board:
1. Disconnect the following cables:
(1) Display panel ZIF connector cable
(2) Power connector cable
(3) Webcam/microphone module cable
(4) Speaker cable
(5) Connector board ZIF connector cable
(6) Audio jack board ZIF connector cable
(7) TouchPad ZIF connector cable
(8) Keyboard ZIF connector cable
(9) Backlight ZIF connector cable
(10) Hard drive ZIF connector cable
30 Chapter 5 Removal and replacement procedures
Bottom cover on page
Battery on page 24)
Heat sink/fan on page 33)
22), and then remove the following components:
Spare part numbers
L51319-001
L51320-001
L51321-001
L51322-001