Dell OptiPlex GXa Service Manual - Page 147
Setup program to ensure that the date and time are still correct indicat
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To remove the system battery, follow these steps: 1. If possible, boot the system and enter the System Setup program. Then record important system configuration information (see Appendix A, "System Setup Program," for details). 2. Turn off power to all peripherals, and disconnect the AC power cable from its AC outlet. 3. Remove the computer cover. 4. Remove the expansion-card cage, and locate the battery in the front right corner of the system board adjacent to the DIMM connectors (see Figure 6-20). CAUTION: If you pry out the battery with a blunt object, be careful not to touch the system board with the object. Ensure that the object is inserted between the battery and the socket before attempting to pry out the battery. Otherwise, you may damage the system board by prying off the socket or by breaking traces on the system board. 5. Remove the battery by carefully prying it out of its socket with your fingers or with a blunt, nonconducting object, such as a plastic screwdriver. WARNING: There is a danger of the new battery exploding if it is incorrectly installed. When you replace the system battery, orient the new battery with the "+" facing up (see Figure 6-25). Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions. 6. Insert the battery into the socket (with the positive side labeled "+" facing upwards) into its socket, and snap it into place. 7. Replace the expansion-card cage; replace the computer cover, reconnect all cabling, and reboot the system. 8. Enter the System Setup program, and configure the system using the information from the printouts you made earlier. 9. Turn off the computer; wait 10 or more minutes and reenter the System Setup program to ensure that the date and time are still correct indicating that the system battery is functioning correctly. Removing and Replacing Parts on the Mini Tower Chassis 6-27