Acer Altos G330 Series - Manual (Page 46)

3 System upgrade 28
(3) Slide the side panel toward the rear of the chassis to detach it.
Removing the front bezels
1 Remove the side panel.
2 Remove the front bezels.
There are two front bezels protecting the 5.25-inch drive bays and
the HDD bay. Remove the top bezel first.
(1) Release the top bezel retention tabs from the chassis interior.
(2) Pull the top bezel away from the chassis.
(3) Pull the lower bezel upward to release its retention tabs from
the chassis.
(4) Pull the lower bezel away from the chassis.