Step 19
Lift up on the optical drive while sequentially pushing the small plastic tabs one after another toward the screen to free one side of the drive.
Lift up the side of the optical drive you just freed and slide the drive out and away from the screen.
When reinstalling the optical drive, be sure that the drive tray is out far enough to slide under the lower casing rim.
Step 20 — Modem
Remove the following Phillips screws:
Remove the longer Phillips screw from the middle-rear of the modem shield.
Remove the three identical Phillips screws, two on either side of the EMI fingers, and the remaining one on the right side of the modem shield.
Remove the larger Phillips screw that secures the EMI fingers to the modem board.
Remove the EMI fingers.
Step 21
Peel the modem shield away from the metal framework below, working from the right front and moving to the left.