Lenovo IdeaCentre D400 Series Hardware Maintenance Manual page 54

Hardware Maintenance Manual
9. Remove the system board.
(1) Remove the four screws that secure the system board to the system
board tray.
(2) Lift the system board off the tray.
10.Install the new system board.
(1) Place the new system board into the tray, aligning the screw holes on
the system board with the mounting holes on the system board tray.
(2) Secure the system board to the tray with four screws.
11.Install the backplane bracket.
(1) Feed the four SATA cables into the chassis openings.
(2) Reconnect the four SATA cables to their corresponding connectors on
the system board.
(3) Insert the backplane bracket into the chassis.
(4) Connect all cables to the hard disk drive backplane.
12.Connect all components, boards, and cables to the system board.
13.Refer to "Completing the installation".
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