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.
To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface.
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
To help prevent damage to the system board, remove the main battery
(see "Removing the Battery" on page 15) before working inside the computer.
Removing the I/O Board
1 Follow the procedures in "Before You Begin" on page 9.
2 Remove the display assembly (see "Removing the Display Assembly" on
3 Follow the instructions from step 2 to step 12 in "Removing the System
Board" on page 65.
4 Remove the hinge cover (see "Removing the Hinge Cover" on page 53).
5 Remove the Mini-Card(s) (see "Removing the Mini-Card(s)" on page 37).
6 Remove the two screws that secure the I/O board to the computer base.
7 Lift the I/O board at an angle to remove the connectors on the I/O board
from the slots on the computer base.