Dell XPS 14 (L401X, Late 2010) - Manual (Page 47)

Power-Button Board 47
5 Connect the display cable to the system-board connector.
6 Replace the keyboard (see "Replacing the Keyboard" on page 43).
7 Replace the palm-rest assembly (see "Replacing the Palm-Rest Assembly"
on page 38).
8 Follow the instructions from step 5 to step 6 in "Replacing the Optical
Drive" on page 33.
9 Replace the hard drive (see "Replacing the Hard Drive" on page 28).
10 Replace the memory module(s) (see "Replacing the Memory Module(s)"
on page 17).
11 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.