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:
● Intel Core i7-10510U processor and 2 GB of dedicated video memory L81423-xxx
● Intel Core i5-10210U processor and 2 GB of dedicated video memory L81422-xxx
● Intel Core i3-10110U processor and 2 GB of dedicated video memory L81419-xxx
● Intel Core i3-8130U processor and 2 GB of dedicated video memory L81421-xxx
● Intel Core i3-7020U processor and 2 GB of dedicated video memory L81420-xxx
For use in models with UMA graphics:
● Intel Core i7-10510U processor L81428-xxx
● Intel Core i5-10210U processor L81427-xxx
● Intel Core i3-10110U processor L81424-xxx
● Intel Core i3-8130U processor L81426-xxx
● Intel Core i3-7020U processor L81425-xxx
Before removing the system board, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 27).
2. Remove the rubber feet (see Computer feet on page 27).
3. Remove the bottom cover (see Bottom cover on page 29).
4. Remove the battery (see Battery on page 31).
5. Remove the fan (see Fan on page 44).
6. Remove the speakers (see Speakers on page 38).
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 34)
● Memory modules (see Memory module on page 36)
● Solid-state drive (if installed) (see Solid-state drive on page 37)
● Heat sink assembly (see Heat sink assembly on page 48)
To remove the system board:
Component replacement procedures 45
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