Dell XPS 14 (L421X, Mid 2012) - Manual (Page 29)

Replacing the Memory Module
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 9. After working inside your computer, follow the instructions in
"After Working Inside Your Computer" on page 11. For additional safety best
practices information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
Procedure
1 Align the notch on the memory module with the tab on the memory-module
connector.
2 Slide the memory module firmly into the slot at a 45-degree angle, and press the
memory module down until it clicks into place. If you do not hear the click, remove
the memory module and reinstall it.
NOTE: If the memory module is not installed properly, the computer may
not boot.
3 Adhere the mylar on the system-board assembly.
1
2
1 tab 2 notch
Replacing the Memory Module | 29