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
Description Spare part number
System board with processor and 2 GB of discrete graphics:
Intel Core i7-8550U processor L00825-xxx
Intel Core i5-8250U processor L00824-xxx
Intel Core i3-7100U processor L00823-xxx
Before removing the system board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Place the computer in “Battery Safe mode” (Battery Safe mode on page 30).
3. Disconnect all external devices connected to the computer.
4. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet, and
then unplugging the AC adapter from the computer.
5. Remove the following components:
a. Service doors (Service doors on page 31).
b. Hard drive (Hard drive on page 37)
c. Keyboard (Keyboard on page 40)
d. Top cover (Top cover on page 44)
e. Card reader board (Card reader board on page 57)
f. Battery (Battery on page 58)
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 (Memory modules on page 33)
●
WLAN/Bluetooth module (WLAN/Bluetooth combo card on page 35)
●
M.2 solid-state drive (M.2 solid-state drive on page 39)
Remove the system board:
1. Position the computer upright on a at surface and open the display as far as possible.
2. Disconnect the power cable from the system board (1).
3. Remove the 5 Torx T8 2.5×4.0 screws (2) that secure the system board to the computer.
60 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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