Epson Endeavor Pro User Manual page 137

6. If there is a drive installed in the rear internal bracket, follow
steps 6 through 8 under "Installing a Drive in the Rear
Internal Bracket" to reconnect the drive and power cables
to the drive.
7. If you have finished installing or removing drives, replace
the computer's cover; see "Replacing the Cover" in
Chapter 4 for instructions. Then see "Running SETUP"in
Chapter 2 for instructions on defining your new drive
configuration.
6-22 Installing and Removing Drives in the Tower Computer