NOTE: For configurations with integrated graphics, the system board can also be removed and installed with the heat
sink and M.2 sold-state drive attached.
3. Install the discrete heat sink (if applicable).
NOTE: If either the system board or the heat sink is replaced, use the thermal grease provided in the kit to ensure that
thermal conductivity is achieved.
4. Install the power button with optional fingerprint reader.
5. Install the power-button board.
6. Install the left fan and the right fan.
7. Install the I/O board.
8. Install the power-adapter port.
9. Install the speakers.
10. Install the display assembly.
11. Install the wireless card.
12. Install the battery.
13. Install the base cover.
14. Follow the procedure in After working inside your computer.
86 Removing and installing Field Replaceable Units (FRUs)