158 Removing and Installing Parts
Installing the System Board
  NOTICE: The system board and metal tray are connected and are installed as 
one piece.
 
NOTICE: 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 at the factory.
1
Transfer components from the existing system board to the replacement 
system board, if applicable.
2
Orient the system board assembly by aligning the notches on the bottom 
of the assembly with the tabs on the computer.
3
Slide the system board assembly toward the back of the computer until the 
assembly clicks into place.
4
Replace the eight screws to secure the system board assembly to the 
chassis.
5
Replace any expansion cards that you removed (see "Installing a PCI Card" 
on page 110 and "Installing a PCI Express Card" on page 116).
book.book  Page 158  Tuesday, November 27, 2007  10:29 AM