190 Mini Tower Computer Parts12 Connect your computer and devices to their electrical outlets, and turnthem on.See the documentation that came with the drive for instructions oninstalling any software required for drive operation.13 Enter system setup (see "System Setup" on page 79) and select theappropriate Drive option.14 Verify that your computer works correctly by running the Dell Diagnostics(see "Dell Diagnostics" on page 111).BatteryReplacing the BatteryCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in the Product Information Guide.NOTICE: To prevent static damage to components inside your computer, dischargestatic electricity from your body before you touch any of your computer’s electroniccomponents. You can do so by touching an unpainted metal surface on thecomputer chassis.A coin-cell battery maintains computer configuration, date, and timeinformation. The battery can last several years. If you have to repeatedly resettime and date information after turning on the computer, replace the battery.CAUTION: A new battery can explode if it is incorrectly installed. Replace thebattery only with the same or equivalent type recommended by the manufacturer.Discard used batteries according to the manufacturer’s instructions.To replace the battery:1 Record all the screens in system setup (see "System Setup" on page 79) sothat you can restore the correct settings in step 9.2 Follow the procedures in "Before You Begin" on page 143.3 Remove the computer cover (see "Removing the Computer Cover" onpage 147).4 Locate the battery socket (see "System Board Components" on page 150).5 Carefully press the battery release lever away from the battery and thebattery will pop out.