Dell Inspiron M421R (Late 2012) - Manual (Page 100)

99 | Removing the System Board
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.
1 Disconnect the power-adapter port cable from the system-board connector.
2 Remove the screws that secure the system-board assembly to the computer base.
1 system-board assembly 2 power-adapter port cable
3 screws (2)
2
3
1
book.book Page 99 Friday, September 7, 2012 10:23 AM