10.Replace the eight screws that secure the system board to the chassis.
11.Connect the cables that you removed from the system board.
12.Replace the memory modules (see Replacing Memory Module(s)).
13.Replace the processor (see Replacing the Processor).
CAUTION: Ensure that the heat sink assembly is correctly seated and secure.
14.Replace any expansion cards on the system board (see Installing a PCI Express Card).
15.Replace the computer cover (see Replacing the Computer Cover).
16.Connect your computer and devices to electrical outlets, and turn them on.
17.Flash the system BIOS, as needed.
NOTE: For information on flashing the system BIOS, see Flashing the BIOS.