Acer AR320 F1 - Manual (Page 48)

3 System upgrades 30
2 Install the top cover.
(1) Place the top cover on the chassis so that the tabs on the cover
align with the slots on the chassis.
(2) Slide the top cover toward the front of the chassis until it is
fully closed.
Removing and installing an optical drive
The system supports a slim SATA optical drive.
1 Observe the ESD precautions described on page 22.
2 Perform the pre-installation instructions described on page 22.
3 Remove the top cover. See page 29.
4 Use a screwdriver to remove the screw (1) on the ODD bracket.
5 Remove the ODD bracket (2).
6 Push the ODD cover plate to the left (3) and pull it out of the
system (4).
7 Insert a new drive (1). The drive is properly inserted if you hear a
click and the locking tab (2) locks into place.