System board
NOTE: All system board spare part kits include replacement thermal material.
Table 6-13 System board descriptions and part numbers
Description Spare part number
System board (includes AMD Ryzen 3 PRO 3300U Mobile Processor with Radeon Vega Graphics) L62972-301
Before removing the system board, follow these steps:
1. Prepare the computer for disassembly (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 44).
4. Remove the keyboard (see Keyboard on page 40).
5. Remove the RJ-45 board and bracket (see RJ-45 board with bracket on page 50).
6. Remove the fan (see Fan 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:
● Solid-state drive (see Solid-state drive (SSD) on page 34)
● Memory modules (see Memory modules on page 35)
● WLAN/Bluetooth module (see WLAN/Bluetooth combo card on page 36)
● WWAN module (see WWAN module on page 38)
● Heat sink (see Heat sink assembly on page 46)
Remove the system board:
1. Position the computer upright and open as far as possible.
2. Remove the three Phillips M2.0 × 3.0 screws that secure the system board to the computer.
3. Close the computer and position it upside down.
60 Chapter 6 Removal and replacement procedures for authorized service provider parts
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