Dell Inspiron 14 (N4120, Early 2011) - Manual (Page 77)

System Board 77
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System Board
WARNING: Before working inside your computer, read the safety information
that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at dell.com/regulatory_compliance.
CAUTION: Only a certified service technician should perform repairs on your
computer. Damage due to servicing that is not authorized by Dell is not covered by
your warranty.
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as a
connector on your computer).
CAUTION: To help prevent damage to the system board, remove the main battery
(see "Removing the Battery" on page 15) before working inside the computer.
CAUTION: Handle components and cards by their edges, and avoid touching pins
and contacts.
Removing the System Board
1 Follow the instructions in "Before You Begin" on page 9.
2 Press and eject any installed cards or blanks from the 8-in-1 media card
reader.
3 Remove the battery (see "Removing the Battery" on page 15).
4 Remove the module cover (see "Removing the Module Cover" on
page 17).
5 Remove the memory module(s) (see "Removing the Memory Module(s)"
on page 23).
6 Follow the instructions from step 4 to step 5 in "Removing the Optical
Drive" on page 19.
7 Disconnect the AC-adapter connector cable from the connector on the
system board.