Dell 5420, 7420 owner manual Procedure

Procedure

NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS after you replace the system-board assembly.

NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can reconnect them correctly after you replace the system-board assembly.

1Disconnect the power-adapter port cable from the system-board connector.

2Remove the screws that secure the system-board assembly to the computer base.

2 3

1

1 system-board assembly 2 power-adapter port cable

3 screws (2)

100 Removing the System Board