Latitude 5490 Owner’s Manual

Installing system board

1. Align the system board with the screw holders on the computer.
2. Replace the four (M2x3) screws to secure the system board to the system.
3. Place the metal bracket to secure the DisplayPort over USB Type-C.
4. Replace the two (M2x3) screws to secure the metal bracket on the DisplayPort over USB Type-C.
5. Connect the power connector port cable to the connector on the system board.
6. Connect the display cables to the connectors on the system board.
7. Place the display cable metal bracket over the display cable.
8. Replace the two M2x3 screws to secure the metal bracket.
9. Flip over the system and open the system in working mode.
10. Connect the following cables:
    1. Touchpad cable
    2. LED board cable
    3. USH board cable
    4. speaker cable
11. Install the:
    1. system fan
    2. chassis frame
    3. heat sink
    4. keyboard
    5. keyboard lattice
    6. WWAN card (optional)
    7. WLAN card
    8. SSD frame
    9. SSD card
    10. hard drive
    11. memory module
    12. battery
    13. base cover
    14. SIM card
12. Follow the procedure in After working inside your computer.