Adding and Replacing Parts 271NOTICE: To connect a network cable, first plug the cable in to the network port ordevice and then plug it in to the computer.14 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.15 Enter system setup (see "System Setup" on page 75) and select theappropriate Drive option.16 Verify that your computer works correctly by running the Dell Diagnostics(see "Dell Diagnostics" on page 123).System BoardCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in theProduct Information Guide.CAUTION: To guard against electrical shock, always unplug your computer fromthe electrical outlet before opening the cover.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.NOTICE: The system board and metal tray are connected and are removed as onepiece.Removing the System Board1 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.
