9. Align the new optical disc drive with the opening in the side of the computer. Push the drive in rmly
until it snaps into place.
NOTE: The optical disc drive can be installed in only one way.
System board (EMI) shield
The system board shield covers the system board. A latch holds the shield in place. Four screws secure the
shield.
To remove the system board shield:
1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2. Remove the rear port cover (see Rear port cover on page 23).
3. Remove the stand (see Attaching and removing a stand on page 20).
4. Remove the access panel (see Access panel on page 24).
5. Lift the electromagnetic interference (EMI) shield o the system board.
To install the system board shield, reverse the removal procedures.
30 Chapter 4 Removal and Replacement Procedures