68 Maintaining and Troubleshooting the Gateway ALR 9200 ServerReplacing the BatteryThe battery provides power for the system real-time clock and CMOSRAM, which holds the system configuration information.1. Restart the computer and start the BIOS Setup program by pressing F2when you are prompted to do so.2. Write down the CMOS values from BIOS Setup so you can reenterthem after you replace the battery. For more information about thesetup program, see “BIOS Setup” on page 79.3. Turn off the system and disconnect the power cords.4. Open the case, observing the static electricity precautions in “StaticElectricity Precautions” on page 2.5. Locate the battery on the system board, see Figure 3 on page 11. Thebattery is circular and has the positive pole mark (+) on the top.6. Gently pull the battery from its socket. You may need to use ascrewdriver with an insulated handle or other implement to remove thebattery, see Figure 28.Figure 28: Replacing the BatteryTo Replace the BatteryCaution!There is a danger ofexplosion if the battery isincorrectly replaced.Replace the battery onlywith the same or equivalenttype recommended by themanufacturer. Dispose ofused batteries according tothe manufacturer’sinstructions.
