h. Top cover (see Top cover on page 83)
i. Display assembly (see 
Display assembly on computers with 15-in displays on page 77 or
Display assembly on computers with 14-in displays on page 90)
j. System board (see 
System board on page 105)
Remove the SIM:
1. Position the computer right-side up with the front toward you.
2. Remove the two Phillips PM2.5×3.0 screws (1) that secure the SIM to the system board.
3. Remove the SIM (2) by pulling the module straight up and off the computer.
Reverse this procedure to install the SIM.
108 Chapter 4   Removal and replacement procedures