System board
NOTE: The system board spare part kit includes replacement thermal materials.
Table 5-15 System board descriptions and part numbers
Description Spare part number
System board (includes replacement thermal materials):
All system boards use the following part numbers:
xxxxxx-001: Non-Windows operating system
xxxxxx-601: Windows operating system
For use in models with discrete graphics:
● AMD Ryzen 3 3200U processor and 2 GB of dedicated video memory L51930-xxx
● AMD A9-9425 processor and 2 GB of dedicated video memory L57725-xxx
For use in models with UMA graphics:
● AMD Athlon 300U processor L56249-xxx
● AMD Ryzen 7 3700U processor L53464-xxx
● AMD Ryzen 5 3500U processor L51929-xxx
● AMD Ryzen 5 3500U processor (models with a TOP (Touch-On Panel) display) L53482-xxx
● AMD Ryzen 3 3200U processor L51928-xxx
● AMD A9-9425 processor L46705-xxx
● AMD A6-9225 processor L46704-xxx
● AMD A4-9125 processor L46703-xxx
System board hook L23206-001
Before removing the system board, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 31).
2. Remove the rubber feet (see Computer feet on page 31).
3. Remove the bottom cover (see Bottom cover on page 33).
4. Remove the battery (see Battery on page 35).
5. Remove the fan (see Fan on page 49).
NOTE: When replacing the system board, be sure that the following components are removed from the
defective system board and installed on the replacement system board:
● WLAN module (see WLAN module on page 40)
● Memory modules (see Memory module on page 42)
● Solid-state drive (if installed) (see Solid-state drive on page 43)
● Heat sink assembly (see Heat sink assembly on page 53)
To remove the system board:
50 Chapter 5 Removal and replacement procedures for authorized service provider parts
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