Asus RS120-E4/PA4 - Manual (Page 42)

Chapter 2: Hardware setup 2-26
11. Carefully slide the optical drive
inward for about half an inch, then
lift it out of the bay.
12. Remove the screws that secure the
optical drive to its metal bracket.
9. Use a Phillips screwdriver (cross) to
remove three screws that secures
the drive.
10. Use a Phillips screw driver (cross)
to remove two screws that secures
the backplane with the drive. Then,
remove the backplane from the
drive.