Acer Altos R720 Series User Manual page 74

64
Note: Make sure the board seats securely into the plastic retainer
at the bottom of the opening in the backplane board.
7 Install a hot-plug HDD into the sixth HDD bay. See "To install a
HDD" section on page 49 for installation instructions.
8 Observe the post-installation instructions described on page 36.
3 System upgrade