Dell XPS 14 (L401X, Late 2010) - Manual (Page 39)

Palm-Rest Assembly 39
2 Connect the control-strip cable to the system-board connector.
3 Slide the touch-pad cable into the system-board connector and press down
on the connector latch to secure the cable.
4 Align the three tabs on the palm-rest assembly with the slots on the top
cover and gently snap the palm-rest assembly into place.
5 Close the display and turn the computer over.
6 Replace the seven screws that secure the palm-rest assembly to the base
cover.
7 Follow the instructions from step 5 to step 6 in "Replacing the Optical
Drive" on page 33.
8 Replace the hard drive (see "Replacing the Hard Drive" on page 28).
9 Replace the memory module(s) (see "Replacing the Memory Module(s)"
on page 17).
10 Replace the battery (see "Replacing the Battery" on page 14).
CAUTION: Before turning on the computer, replace all screws and ensure that no
stray screws remain inside the computer. Failure to do so may result in damage to
the computer.