Replacing the System Board
1 Gently place the system board into the chassis and slide it towards the
back of the computer.
2 Replace the screws that secure the system board to the chassis.
3 Route and connect the cables that you disconnected from the system
For information on system board connectors, see "System-Board
Components" on page 21.
1 Replace the processor. See "Replacing the Processor" on page 103.
2 Replace the processor fan and heat-sink assembly. See "Replacing the
Processor Fan and Heat-Sink Assembly" on page 99.
3 Replace the graphics card. See "Replacing the Graphics Card" on page 39.
4 Replace any PCI-Express x1 card(s), if applicable. See "Replacing the PCI-
Express x1 Card(s)" on page 46.
5 Replace the memory module(s). See "Replacing Memory Module(s)" on
6 Replace the Mini-Card, if applicable. See "Replacing the Mini-Card" on
7 Replace the computer cover. See "Replacing the Computer Cover" on
8 Follow the steps in "After Working Inside Your Computer" on page 15.
Entering the Service Tag in BIOS
1 Turn on the computer.
2 Press <F2> during POST to enter the system setup program.
3 Navigate to the main tab and enter the service tag in the Service Tag
Set Service Tag field allows you to enter the service tag manually only when
the service tag is absent.