Installing Options 4-353 1/2-Inch Accessible Device UpgradeThe following sections describe how to install or remove a 3 1/2-inchaccessible device (such as a Zip drive) in a 3 1/2-inch accessible devicebay.If you are installing a 3 1/2-inch device in an empty bay, use thefollowing procedure. If you need to remove a device to empty a bay, see“Removing a 3 1/2-Inch Device” later in this section.Installing a 3 1/2-Inch Accessible DeviceInstalling a 3 1/2-inch accessible device requires! removal of the cover and front panel! unplugging the signal and power cables from an installed device! removal of the two-device bracket and its cover! removal of the blank panel and metal panel from the bracket! installation of the device in the bracket! installation of the two-device bracket in the chassis! connecting the signal and power cables to the device! replacing the front panel and cover.Install the 3 1/2-inch device as follows.1. Remove the system unit cover and front panel (see “System UnitCovers”).Before removing the cover, turn off systempower and unplug the system power cable. Power is removed only whenthe power cable is unplugged.