Acer 4330 - Manual (Page 135)

Chapter 3 125
Replacing the ODD Module
1. With the ODD tray in the eject position, replace the
ODD cover on the new ODD Module.
2. Press the cover into the tray, bottom edge first, to
secure.
3. Turn ODD Module around and secure bracket with
three screws.
4. Slide the module in the chassis and press until the
module is flush with the chassis.
5. Replace the single screw to secure the Module.