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 5-16
System board descriptions and part numbers
Description
Spare part number
System board with integrated AMD Ryzen PRO 7 4750U processor
M09523-xx1
System board with integrated AMD Ryzen 7 4700U processor
L98556-xx1
System board with integrated AMD Ryzen PRO 5 4650U processor
M09522-xx1
System board with integrated AMD Ryzen 5 4500U processor
L98554-xx1
System board with integrated AMD Ryzen 3 4300U processor
L98552-xx1
Before removing the system board, follow these steps:
1.
Prepare the computer for disassembly (
Preparation for disassembly on page 32
2.
Place the computer in Battery Safe mode (
3.
Remove the following components:
a.
Bottom cover (
).
b.
Battery (
c.
Battery connector board (
Battery connector board on page 48
)
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 37
●
M.2 solid-state drive (
M.2 solid-state drive on page 39
)
●
Heat sink (
)
Remove the system board:
1.
Disconnect the following cables from the system board:
(1) Power connector cable
(2) Speaker cable
(3) Antennas from WLAN module (select models only)
(4) Display cable (ZIF)
(5) USB cable from USB board (ZIF)
(6) Fan cable
54
Chapter 5 Removal and replacement procedures for authorized service provider parts