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System board
All system boards use the following part numbers:
xxxxxx-001: Non-Windows operating system
xxxxxx-601: Windows 10 operating system
Table 6-9
System board descriptions and part numbers
Description
Spare part number
System board with Intel Core i7-8650U processor
L56433-xx1
System board with Intel Core i7-8650U processor (On Storage Recovery [OSR])
L56432-xx1
System board with Intel Core i7-8550U processor
L56431-xx1
System board with Intel Core i5-8350U processor
L56429-xx1
System board with Intel Core i5-8250U processor
L56430-xx1
System board with Intel Core i3-8130U processor
L56428-xx1
Before removing the system board, follow these steps:
1.
Prepare the computer for disassembly (
Preparation for disassembly on page 42
).
2.
Remove the bottom cover (see
).
3.
Remove the battery (see
4.
Remove the memory module EMI cover (see
When replacing the system board, be sure to remove the following components (as applicable) from
the defective system board and install them on the replacement system board:
●
Memory modules (see
●
WLAN module (see
●
WWAN module (see
)
●
Solid-state drive (see
●
Heat sink (see
)
●
Fan (see
Remove the system board:
1.
Disconnect the following cables and the SIM card holder from the system board:
(1) Webcam cable
(2) WLAN module antenna cables
(3) Speaker cable
(4) WWAN module antenna cables
(5) Display cable
(6) Power button board cable
(7) Card reader board cable (ZIF)
Component replacement procedures
53