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Replacing the System Board
Dell™Inspiron™518/519ServiceManual
1. Follow the procedures in Before You Begin.
2. Remove the computer cover (see Removing the Computer Cover).
3. Remove any add-in cards on the system board (see Replacing a PCI/PCI Express Card).
4. Remove the processor and heat sink assembly (see Removing the Processor).
5. Remove the memory modules (see Replacing Memory Module(s)) and document which memory module is removed from each memory socket so that the
memory modules can be installed in the same location after the board is replaced.
6. Disconnect all cables from the system board.
7. Remove the eight screws from the system board.
8. Lift the system board up and out.
9. Orient the system board by aligning the screw holes on the system board with the screw holes on the chassis.
10. Replace the eight screws to secure the system board to the chassis.
11. Replace the cables that you removed from the system board.
12. Replace the processor and the heat sink assembly (see Installing the Processor).
CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTICE: Do not perform the following steps unless you are familiar with hardware removal and replacement. Performing these steps incorrectly could
damage your system board. For technical service, see the Quick Reference Guide.
NOTICE: Carefully note the routing and location of each cable before you disconnect it, so that you are sure to re-route cables correctly. An incorrectly
routed or a disconnected cable could lead to computer problems.