2 Front Bay 4 7 5 5 2 7 2 7 1 4 3 1 Turn off the power and unplug the MX-2424. Remove the eight screws from the top cover and put them in a safe place. 2 Remove the cables attached to any installed drives. 3 Remove the four screws from the bottom of the unit that hold the drive bracket in place. Lift the drive bracket out. 8 5 4 Unscrew and remove the front panel blank and save it. 5 Install the new option device into the drive bracket and replace the screws.