108 Installing System Components12 Press to enter the System Setup program, and check that theprocessor information matches the new system configuration. See "SystemSetup Options" on page 43.13 Run the system diagnostics to verify that the new processor operatescorrectly.See "Running the System Diagnostics" on page 149 for information aboutrunning the diagnostics and troubleshooting processor problems.System BatteryThe system battery is a 3.0-volt (V), coin-cell battery.Replacing the System BatteryCAUTION: Only trained service technicians are authorized to remove the systemcover and access any of the components inside the system. See your ProductInformation Guide for complete information about safety precautions, workinginside the computer, and protecting against electrostatic discharge.CAUTION: There is a danger of a new battery exploding if it is incorrectlyinstalled. Replace the battery only with the same or equivalent type recommendedby the manufacturer. Discard used batteries according to the manufacturer'sinstructions. See your System Information Guide for additional information.1 Remove power from the system, including any attached peripherals, anddisconnect the system from the electrical outlet.2 Open the system. See "Removing the Top Cover" on page 60.3 Remove memory risers 3 and 4 from the system.4 Locate the battery socket. See "System Board Connectors" on page 154.NOTICE: If you pry the battery out of its socket with a blunt object, be carefulnot to touch the system board with the object. Ensure that the object isinserted between the battery and the socket before you attempt to pry out thebattery. Otherwise, you may damage the system board by prying off the socketor by breaking circuit traces on the system board.NOTICE: To avoid damage to the battery connector, you must firmly supportthe connector while installing or removing a battery.5 Lift the battery from the system board.