System board
To remove the system board, use these procedures and illustrations.
Table 6-12
System board descriptions and part numbers
Description
Spare part number
System board (includes processor):
All system boards use the following part numbers:
xxxxxx-001: Non-Windows operating system
xxxxxx-601: Windows 10 operating system
AMD Ryzen 7 PRO 5850U
M53483-xx1
AMD Ryzen 7 5800U
M53480-xx1
AMD Ryzen 5 PRO 5650U
M53482-xx1
AMD Ryzen 5 5600U
M53479-xx1
AMD Ryzen 3 PRO 5450U
M53481-xx1
AMD Ryzen 3 5400U
M53478-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
).
3.
Remove the battery (see
4.
Remove the fan (see
).
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
).
●
WLAN module (see
●
WWAN module (see
).
●
Solid-state drive (see
●
Heat sink (see
).
Remove the system board:
1.
Disconnect the following cables from the system board:
●
Power connector cable (1)
●
Camera cable (2)
●
Antenna cables from the WWAN module (select products only) (3)
●
Small USB cable from the USB board (4)
●
Larger USB cable from the USB board (ZIF) (5)
●
Speaker cable (6)
Component replacement procedures
55