Dell Dimension C521 Owner's Manual - Page 90
Replacing the Computer Cover - battery
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5 Insert the new battery into the socket with the side labeled "+" facing up, and snap the battery into place. 1 2 1 battery 2 battery socket 6 Replace the computer cover (see "Replacing the Computer Cover" on page 90). NOTICE: To connect a network cable, first plug the cable into the network port or device, and then plug it into the computer. 7 Connect your computer and devices to electrical outlets, and then turn them on. 8 Enter system setup (see "System Setup" on page 97) and restore the settings you recorded in step 1. 9 Properly dispose of the old battery. See the Product Information Guide for battery disposal information. Replacing the Computer Cover CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. 1 Ensure that all cables are connected, and fold cables out of the way. Gently pull the power cables toward you so that they do not get caught underneath the drives. 2 Ensure that no tools or extra parts are left inside the computer. 90 Removing and Installing Parts