Dell Precision Workstation 340 Service Manual page 2

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Battery
Dell Precision™ WorkStation 340 Service Manual
The 3.0-V CR2032 coin-cell battery installed on the system board provides power to retain the configuration, date, and time information when the computer is
turned off. The computer battery is designed to provide years of service without being replaced. However, you may need to replace the battery if configuration
or clock-related inconsistencies occur or if one of the following messages is displayed during the boot routine:
Time-of-day not set - please run SETUP program
or
Invalid configuration information -
please run SETUP program
CAUTION: There is a danger of the new battery exploding if it is installed incorrectly. Replace the battery only with the same or equivalent type
recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions.
CAUTION: Before you perform this procedure, see
NOTICE: Before disconnecting a device from the computer, wait 10 to 20 seconds after disconnecting the computer from its electrical outlet. Before
removing a component from the system board, verify that the standby power light on the system board has turned off. To locate this light, see your
computer's illustration in "System Board
1. If you have not already done so, make a copy of your computer configuration information in system setup.
If the settings are lost while you are replacing the battery, you can refer to your copy of the computer configuration information to restore the correct
settings.
2. Turn off the computer and devices, disconnect them from their electrical outlets, and wait 10 to 20 seconds.
3. Open the computer cover.
4. Remove the battery.
To locate the battery on the system board, see your computer's illustration in
Removing the Battery
1 battery
2 battery socket
3 tab
Press in on the tab to release the battery.
5. Install the new battery.
Orient the battery with the side labeled "+" facing up. Then insert the battery into the socket, and snap it into place.
Installing the Battery
"Safety First—For You and Your
Components."
Computer."
"System Board Components."