Replacing the system board
WARNING: Before working inside your computer, read the
safety information that shipped with your computer and
follow the steps in Before working inside your computer.
After working inside your computer, follow the instructions
in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
NOTE: Your computer’s Service Tag is stored in the system board. You
must enter the Service Tag in the BIOS setup program after you replace
the system board.
NOTE: Replacing the system board removes any changes you have made
to the BIOS using the BIOS setup program. You must make the
appropriate changes again after you replace the system board.
1 Align the system-board assembly with the slots on the chassis and place
the system-board assembly in position.
2 Slide the system-board assembly to engage the latches that secure it to
the chassis.
3 Replace the screws that secure the system-board assembly to the chassis.
4 Route and connect the cables that you disconnected from the system-
board assembly.
1 Replace the processor.
2 Replace the graphics card.
3 Replace the processor fan and heat-sink assembly.
4 Replace the wireless card.
5 Replace the solid-state drive.
6 Replace the memory modules.
7 Follow the procedure from step 10 to step 11 in "Replacing the power-supply
8 Replace the left-side cover.