System board
NOTE: All system board spare part kits include a processor and replacement thermal material.
Description Spare part number
Intel Core i7-8565U processor, 8 GB of system memory, ngerprint reader L37351-xx1
Intel Core i5-8265U processor, 8 GB of system memory, ngerprint reader L37350-xx1
Intel Core i5-8265U processor, 8 GB of system memory, no ngerprint reader L37349-xx1
Intel Core i5-8265U processor, 4 GB of system memory, ngerprint reader L37348-xx1
Intel Core i3-8145U processor, 8 GB of system memory, ngerprint reader L42277-xx1
Intel Core i3-8145U processor, 4 GB of system memory, ngerprint reader L37347-xx1
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. Disconnect all external devices connected to the computer.
3. 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.
4. Remove the following components:
a. Bottom cover (see Bottom cover on page 25)
b. Battery (see Battery on page 27)
c. Power connector cable bracket (see Power connector cable on page 36)
When replacing the system board, be sure to remove the following components from the defective system
board and install them on the replacement system board:
●
WLAN module (see WLAN module on page 28)
●
Solid-state drive (see Solid-state drive on page 30)
●
Fans (see Fans on page 31)
●
Heat sink (see Heat sink on page 32)
Remove the system board:
1. Disconnect the following cables:
(1) Fingerprint reader cable
(2) Power connector cable
(3) Display cable
(4) Speaker cable
(5) USB board cable
(6) Backlight cable
(7) Keyboard cable
Component replacement procedures 43
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