Dell Inspiron 1100 - Manual (Page 37)

4. Press the lever next to the memory module connectors in the direction of the arrow on the lever (towards the drive) to release the drive.
5. Pull the drive out of the bay.
Installing the CD or DVD Drive
1. Slide the new drive into the bay until the drive is fully seated.
2. Replace the memory module cover and tighten the captive screw.
3. Replace the M2.5 x 8-mm screw next to the memory module cover.
Modem
Removing the Modem
1 captive screw
2 memory module cover
1 lever
2 CD or DVD drive
3 M2.5 x 8-mm screw
labeled "O"
CAUTION: Before working inside your Dell™ computer, read the safety instructions in your Owner's Manual.