Dell XPS 730 (Late 2008) - Manual (Page 88)

86 Replacing the System Board
CAUTION: The system board and metal tray are connected and are removed as
one piece.
7 Carefully, lift the system board assembly up and out of the computer.
CAUTION: If you are replacing the system board, visually compare the
replacement system board to the existing system board to make sure that you have
the correct part.
NOTE: Some components and connectors on replacement system boards may be
in different locations than corresponding connectors on the existing system board.
NOTE: Jumper settings on replacement system boards are preset by the factory.
8 Transfer components from the existing system board to the replacement
system board, if applicable.
1 screws (2) 2 system board
3 metal tray 4 tabs
1
4
2
3