Adding and Replacing Parts 2612 Set the jumpers on the replacement system board so that they are identicalto the ones on the existing board (see "System Board Components" onpage 148).NOTE: Some components and connectors on the replacement system board maybe in different locations than the corresponding connectors on the existing systemboard.3 Orient the replacement board by aligning the notches on the bottom ofthe board with the tabs on the computer.4 Slide the system board assembly toward the back of the computer until theassembly clicks into position.5 Replace any components and cables that you removed from the systemboard.6 Reconnect all cables to their connectors at the back of the computer.7 Replace the computer cover (see "Replacing the Computer Cover" onpage 262).NOTICE: To connect a network cable, first plug the cable into the network port ordevice and then plug it into the computer.8 Connect your computer and devices to electrical outlets, and turnthem on.Replacing the Front PanelCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in the Product 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.1 Align the notches on the front panel with the corresponding holes on thefront of the computer.2 Pull the front-panel release lever, and slide the panel to the right to engageand secure the front panel.
