User Guide180www.nec-computers.comReplacing the BatteryAll motherboards use a battery to maintain system configuration information. If it failsto maintain system configuration, replace it with an identical rated battery from thesame manufacturer.Remove the battery from the motherboard as follows:CautionRemoving the battery from the motherboard causes the com-puter to lose system configuration information. Before removingit, run Setup and record the system configuration settings.Use this information to restore the system after replacing thebattery.1. Turn off and unplug the system unit and any external options connected to thesystem.2. Remove the right side door. See “Removing and Installing the Right SideDoor” on page 111.3. Locate the battery on the motherboard. See “Motherboard” on page 25.4. Use your finger to carefully remove the battery from the battery socket on themotherboard.WarningThe battery may explode if it is incorrectly replaced or improp-erly discarded.Use only an identical rated battery from the same manufacturer.5. With the positive (+) side facing up, press the new battery into the socket.6. Replace the right side door.7. Connect external peripherals and power cables.8. Run Setup to reconfigure system parameters.
