Dell OptiPlex E1 User Manual download pdf (Page 66)

Replacing the System Battery

A 3.0-volt (V) CR2032 coin-cell battery installed on the system board maintains system configuration, date, and time information in

a special section of memory.

The operating life of the battery can extend up to ten years. The battery may need replacing if an incorrect time or date is displayed

during the boot routine along with a message such as:

Time-of-day not set - please run SETUP program

Invalid configuration information -

please run SETUP program

Strike the F1 key to continue,

F2 to run the setup utility

To determine whether the battery needs replacing, reenter the time and date through the System Setup program and exit the

program properly to save the information (see "

Using the System Setup Program," for instructions). Turn off your system and

disconnect it from AC power for a few hours; then reconnect and turn on your system. Enter the System Setup program. If the

date and time are not correct in the System Setup program, replace your battery.

You can operate your system without a battery; however, without a battery, the system configuration information is erased if the

system is turned off or unplugged from AC power. In this case, you must enter the System Setup program and reset the

configuration options.

WARNING:

WARNING: There is a danger of the new battery exploding if it is incorrectly installed. Replace the battery only with the

same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's

instructions.

Use the following procedure to replace the system battery with another CR2032 coin-cell battery:

1. If you have not already done so, make a copy of your system configuration information in the System Setup

program.

If the settings are lost while you are replacing the battery, refer to your written or printed copy of the system configuration

information to restore the correct settings. See "

Using the System Setup Program," for instructions.

2. Remove the computer cover according to the instructions in "

Removing the Computer Cover".

CAUTION: Turn off the computer and unplug it from the electrical outlet. See "Protecting Against

Electrostatic Discharge" in the safety instructions at the front of this guide.

3. Locate the battery and remove it.

The battery (see

Figure 6-1) is mounted in a socket labeled "BATTERY," in the front-right corner of the system board (as

you face the front of the system).

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Dell OptiPlex E1 User Manual Page 66