Acer Altos G310 MK2 Series Manual page 47

4 Transfer the left side tool-less locking rail (looking from the front)
from the old drive to the new drive module.
5 Insert the new CD-ROM drive into the drive bay until it locks into
place with an audible "click."
6 Connect the power and IDE cables to the new drive.
7 Observe the post-installation instructions described on page 30.
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