Dell XPS 15 (L521X, Mid 2012) - Manual (Page 42)

Replacing the Fan
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before You Begin" on
page 8. After working inside your computer, follow the instructions in
"After Working Inside Your Computer" on page 10. For additional safety best
practices information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
Procedure
1 Align the screw holes on the fan with the screw holes on the palm-rest assembly.
2 Replace the screw that secures the fan to palm-rest assembly.
3 Connect the fan cable to the system board.
4 Adhere the optical-drive cable to the fan.
5 Slide the optical-drive cable into the optical-drive cable connector and press down
on the connector latch to secure the cable.
Postrequisites
1 Replace the battery. See "Replacing the Battery" on page 22.
2 Follow the instructions from step 2 to step 7 in "Replacing the Base Cover" on
page 14.
42 | Replacing the Fan