Table 5-11 System board descriptions and part numbers (continued)
Description Spare part
number
Intel Core i5-1135G7 processor with 16 GB of system memory (OLED) M45827-xx1
Intel Core i5-1135G7 processor with 16 GB of system memory M45826-xx1
Intel Core i3-1135G7 processor with 8 GB of system memory M45825-xx1
Before removing the system board, follow these steps:
1. Prepare the computer for disassembly (see Preparation for disassembly on page 35).
2. Remove the bottom cover (see Bottom cover on page 35).
3. Remove the battery (see Battery on page 36).
4. Remove the WWAN module (see WWAN module on page 39).
When you replace 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:
● Solid-state drive and shield (see Solid-state drive on page 38).
● Fan/heat sink assembly (see Fan/heat sink assembly on page 55).
● Sensor board and cable (see Sensor board on page 57).
Remove the system board:
1. Disconnect the following cables from the system board:
● Camera/microphone module cable (1)
● WLAN module shield and WLAN antenna cables from the WLAN module (2)
● Display panel cable ZIF connector (3)
● USB board cable (4)
● Right speaker cable (5)
● Keyboard cable ZIF connector (6)
● Fingerprint sensor cable ZIF connector (7)
● Touchpad cable ZIF connector (8)
● Backlight cable ZIF connector (9)
● NFC module cable ZIF connector (10)
● Left speaker cable (11)
Component replacement procedures 53
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