For access, remove these FRUs in order:
For the models with the IEEE 1394 connector, remove the IEEE 1394 connector bracket as shown in step (2) and (3)
Then, remove the ac power jack cable, and the modem cable..
When installing: Make sure the connectors are attached firmly, and that the cables are routed as in the figure above.
Remove the CPU support plate.
When installing: When attaching the system board to the frame, adjust the placement with the small projection (a). Then secure the system board with the screws.
Remove the system board and the PC Card/ExpressCard slots assembly from the structure frame together.