Adding and Replacing Parts 23914 If the drive you just installed is the primary drive, insert bootable disc intodrive A.15 Turn on the computer.16 Enter system setup, and update the appropriate Drive option (see "SystemSetup" on page 75).17 Exit system setup, and reboot the computer.18 Partition and logically format your drive before you proceed to the nextstep.See the documentation for your operating system for instructions.19 Test the hard drive by running the Dell Diagnostics. See "Dell Diagnostics"on page 123.20 If the drive you just installed is the primary drive, install your operatingsystem on the hard drive.Removing a Fifth SATA Hard Drive (Optional)CAUTION: Before you begin any of the procedures in this section, follow thesafety instructions located in theProduct Information Guide.CAUTION: To guard against electrical shock, always unplug your computer fromthe electrical outlet before removing the cover.1 Follow the procedures in "Before You Begin" on page 139.CAUTION: Your computer is heavy (it has an approximate minimum weight of 55lbs) and can be difficult to maneuver. Seek assistance before attempting to lift,move, or tilt it; this computer requires a two-man lift. Always lift correctly to avoidinjury; avoid bending over while lifting. See yourProduct Information Guide forother important safety information.CAUTION: The computer stand should be installed at all times to ensuremaximum system stability. Failure to install the stand could result in the computertipping over, potentially resulting in bodily injury or damage to the computer.2 Remove the computer cover (see "Removing the Computer Cover" onpage 141).3 Remove the drive panel (see "Removing the Drive Panel" on page 246).4 Disconnect the power cable from the back of the hard drive.