There are seven screws in two sizes that secure the system board in place.
Figure 54. System board
10. Remove the system board off the chassis.
CAUTION: Do not hold and bend the system board from its neck as it may damage the system board.
Figure 55. System board
11. Peel back the display absorber and WWAN thermal pad (for systems shipped with WWAN) from the system board.
NOTE:
All of the above mentioned absorbers/stickers on the system board are re-usable and must be immediately
relocated to the replacement system board.
NOTE: The following items MUST be transferred to the replacement system board.
Removing and installing Field Replaceable Units (FRUs) 73