18. Remove the system board latches:
a. Remove the latch screw (callout 1).
b. Press and hold the release tab (callout 2), and then remove the latch from the system board (callout 3).
19. Remove the system board assembly:
a. Loosen the system board thumbscrew (callout 1).
b. Use the system board handle and thumbscrew to remove the system board from the rear panel (callout 2).