CAUTION: Before you remove any component from the system board, read the steps in "Precautionary Measures."
NOTE: The system board
and metal tray are
attached and are removed
as one piece.
Remove any components that restrict access to the system board.
Disconnect all cables from the system board.
Before you remove the existing system board, visually compare the
replacement system board to the existing system board to make sure
that you have the correct part.
Pull up on the tab and slide the system board toward the front of the
computer; lift it up and away.
Removing the System Board
Place the system board that you just removed next to the replacement
system board.
Transfer components from the existing system board to the
replacement system board.
Remove the memory modules and install them on the replacement
board.
CAUTION: The microprocessor package and heat sink assembly can get hot. To avoid burns, be sure that the package and assembly have had sufficient time to cool before you touch them.
Configure the settings of the replacement system board.
Set the jumpers on the replacement system board so it is identical to
the one on the existing board.
NOTE: Some
components and
connectors on the
replacement system board
may be in different
locations than the
corresponding connectors
on the existing system
board.
Orient the replacement board by aligning the notches on the bottom
to the tabs on the computer floor.
Slide the board toward the back of the computer until it clicks into
place.
Replace any components and cables that you removed from the system
board.
Reconnect all cables to their connectors at the back of the computer,
close the computer cover, and reconnect the computer and devices to
their power sources and turn them on.
NOTE: After you close the cover, the chassis intrusion detector causes the
following message to be displayed at the next computer start-up:
(default)
jumpered 
unjumpered
