Replacing The System Board - Dell Precision 490 Desktop User Manual

Replacing the System Board
1. Transfer components from the existing system board to the replacement system board:
a. Remove the memory modules and install them on the replacement board. See
CAUTION: The processor package and heat-sink assembly can get hot. To avoid burns, ensure that the package and assembly have had sufficient
time to cool before you touch them.
b. Remove the processor from the existing system board and transfer the processor to the replacement system board. See
information.
2. Set the jumpers on the replacement system board so that they are identical to the ones on the existing board (see
NOTE: Some components and connectors on the replacement system board may be in different locations than the corresponding connectors on the
existing system board.
3. Orient the replacement board by aligning the screw holes in the board with the corresponding holes in the computer chassis.
4. Screw in the 9 screws that attach the system board.
5. Replace the heat sink assembly and tighten the four captive screws to secure it to the system board.
6. Replace any components and cables that you removed from the system board.
7. Reconnect all cables to their connectors at the back of the computer.
8. Replace the computer cover (see
NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.
9. Connect your computer and devices to electrical outlets, and turn them on.
Back to Contents Page
Replacing the Computer Cover).
Memory for more information.
System Board
Processor for more
Components.)