Dell Precision 7730 Service Manual page 60

d Turn the system and replace the 15 (M2.5x5.0) and the 2 (M2.0x3.0) screws to secure the palmrest to the system [1, 2].
e Connect the touchpad and touchpad button cables to the connectors on the system board and lock the latch [3].
60 Removing and installing components