3100  (250-1632)        Replacing the Battery          Faxback Doc. # 5100

Each time you turn on the computer, it accesses a battery-backed memory
chip (CMOS RAM) that contains information about your computer
configuration.  The CMOS RAM battery also powers a real-time clock that
keeps the system time and date.

NOTE: The part number for the CMOS battery is: CS-1005.  This part can
      be ordered through National Parts

When the battery fails, the computer loses the configuration and the time
and date information each time you turn off the computer.

Warning:  Improper handling of this lithium battery can be hazardous.
          Never recharge, disassemble, or heat the battery above 100C
          (212F).  Never solder directly to the battery or expose the
          contents of the battery to water.  Dispose of used batteries
          according to the manufacturer's instructions.  Replace the
          battery with a battery of the same type.

To replace the battery:

1.  Turn off the computer, and disconnect all cables.

2.  Refer to "Main Logic Board Layout" to locate the battery socket.

3.  Carefully lift the battery clip, and remove the old battery from the
    socket.

4.  Insert the new battery, positive (+) side up.

5.  Close the computer.

6.  Reconnect all cables.  Refer to the "Getting Started" section.

7.  Run the setup utility to enter the correct time and date.  Refer to
    the "Utilities" section for more information.

(smc 01/04/94)