Asus AP1720-E2 - Manual (Page 38)

Chapter 2: Hardware setup 2-18
7. Make sure that the drive and bay
holes align as shown. When in
place, the drive protrudes about
an inch from the front panel.
8. Pull down the bar lock and insert
the lock pegs to the drive/bay
holes, then push the drive lock
to the right to secure the drive.
9. On the front panel assembly, detach the plastic bay cover opposite the
5.25-inch drive that you installed by pressing the two hooked tabs on
each side of the bay cover.
10. Re-install the front panel assembly when done. Refer to section “2.5.2
Re-installing the front panel assembly” for instructions.