3 Upgrading your system36Installing and removing storagedevicesThe housing supports four 5.25-inch, and three internal 3.5-inchstorage devices. The empty drive bays allow you to install additionaldrives such as a CD-ROM drive, digital audio tape (DAT) drive oranother hard disk drive.Note: Your basic system comes with a CD-ROM drive, a 3.5-inchdiskette drive, and a hard disk drive already installed.Replacing a 3.5-inch or a 5.25-inch storage deviceTo replace a 3.5-inch storage device:1 Open the front panel door and pull down the door of the AltosEasyStor Cage.2 Remove the thumb screws from the Altos EasyStor Cage.3 Pull out the Altos EasyStor Cage.4 Disconnect the power cable of the hard disk fan.5 Disconnect the power and signal cable from the old drive.