Dell Latitude 5290 Owner's Manual page 34

Installing system board
1 Align the system board with the screw holders on the computer.
2 Replace the 3 (M2*3) 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 2 (M2*5) 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 cable to the connector on the system board.
7 Place the display cable metal bracket to its place over the display cable.
8 Replace the single (M2*3) screw to secure the metal bracket.
9 Connect the following cables:
a Touchpad cable
b LED board cable
c USH board cable
10 Install the:
a chassis frame
b heat sink assembly
c keyboard
d keyboard lattice
e WWAN card (optional)
f WLAN card
g SSD frame
h SSD with holder
i SSD card
34 Removing and installing components