Table 5-12 System board descriptions and part numbers
Description Spare part number
System board (includes integrated processor)
All system boards use the following part numbers:
xxxxxx-001: Non-Windows operating systems
xxxxxx-601: Windows operating system
AMD Ryzen 7 5850U processor M47405-xx1
AMD Ryzen 7 5800U processor M47403-xx1
AMD Ryzen 5 5650U processor M47404-xx1
AMD Ryzen 5 5600U processor M47402-xx1
AMD Ryzen 3 5400U processor M47401-xx1
Before removing the system board, follow these steps:
1. Prepare the computer for disassembly (see Preparation for disassembly on page 32).
2. Remove the bottom cover (see Bottom cover on page 32).
3. Remove the battery (see Battery on page 33).
4. Remove the fan (see Fan on page 41).
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:
● Memory modules (see Memory modules on page 35).
● WLAN module (see WLAN module on page 36).
● Solid-state drive (see Solid-state drive on page 38).
● Heat sink (see Heat sink on page 43).
Remove the system board:
1
. Disconnect the following cables from the system board:
● Antenna cables from the WLAN module (select products only) (1)
● Power connector cable
(2)
● Speaker cable
(3)
● Display cable (4)
● USB cable (ZIF) from USB board (5)
● USB cable (ZIF) from system board (6)
● Touchpad cable (ZIF)
(7)
● Keyboard backlight cable (ZIF) (select products only) (8)
● Keyboard cable (ZIF)
(9)
Component replacement procedures 45
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