System board
NOTE:
All system board spare part kits include replacement thermal material.
All system boards use the following part numbers:
xxxxxx-001: Non-Windows operating systems
xxxxxx-601: Windows 10 operating system
Table 6-9
System board description and part number
Description
Spare part number
AMD Ryzen 7 2700U processor
L55321-xxx
AMD Ryzen 5 2500U processor
L52215-xxx
AMD Ryzen 3 2200U processor
L52214-xxx
Before removing the system board, follow these steps:
1.
Prepare the computer for disassembly (
Preparation for disassembly on page 34
).
2.
Place the computer in “Battery Safe mode” (
3.
Remove the following components:
a.
Bottom cover (
b.
Battery (
)
c.
Fan (
)
When replacing the system board, be sure to remove the following components (as applicable) from the
defective system board and install on the replacement system board:
●
Memory modules (
●
WLAN/Bluetooth module (
WLAN/Bluetooth combo card on page 38
)
●
M.2 solid-state drive (
M.2 solid-state drive on page 40
●
Heat sink (
Remove the system board:
1.
Disconnect the following cables from the system board:
(1): Power connector cable
(2): Antennas from WLAN module (select models only)
(3): Speaker cable
(4): Display cable (ZIF)
(5): USB cable from USB/power board (ZIF)
(6): Keyboard cable (ZIF)
(7): Card reader cable (ZIF)
(8): TouchPad cable (ZIF)
Component replacement procedures
57