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Dell™ OptiPlex™ Replacing the Battery Cmos Battery Guide

Dell™ OptiPlex™ Replacing the Battery Cmos Battery Guide

Replacing the Battery

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computers electronic components. You can do so by touching an unpainted metal surface on the computer chassis.

A coin-cell battery maintains computer configuration, date, and time information. The battery can last several 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

or

Invalid configuration information -
please run SETUP program

or

Strike the F1 key to continue,
F2 to run the setup utility

To determine whether you need to replace the battery, reenter the time and date in system setup and exit the program to save the information. Turn off your computer and disconnect it from the electrical outlet for a few hours; then reconnect the computer, turn it on, and enter system setup. If the date and time are not correct in system setup, replace the battery.

You can operate your computer without a battery; however, without a battery, the configuration information is erased if the computer is turned off or unplugged from the electrical outlet. In this case, you must enter system setup and reset the configuration options.

CAUTION: A new battery can explode 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 manufacturers instructions.

To remove the battery:

1. If you have not already done so, make a copy of your configuration information, found in system setup.
   
   
1. Follow the procedures in "Before You Begin."
   
   
2. Locate the battery socket.
   
   

NOTICE: If you pry the battery out of its socket with a blunt object, be careful not to touch the system board with the object. Ensure that the object is inserted between the battery and the socket before you attempt to pry out the battery. Otherwise, you may damage the system board by prying off the socket or by breaking circuit traces on the system board.

NOTICE: To avoid damage to the battery connector, you must firmly support the connector while removing the battery.

3. Remove the system battery.
   
   
   1. Support the battery connector by pressing down firmly on the positive side of the connector.
      
      
   2. While supporting the battery connector, press the battery toward the positive side of the connector and pry it up out of the securing tabs at the negative side of the connector.
      
      

1	positive side of battery connector
2	system battery
3	negative side of battery connector

NOTICE: To avoid damage to the battery connector, you must firmly support the connector while replacing the battery.

1. Install the new system battery.
   
   
   1. Support the battery connector by pressing down firmly on the positive side of the connector.
      
      
   2. Hold the battery with the "+" facing up, and slide it under the securing tabs at the positive side of the connector.
      
      
   3. Press the battery straight down into the connector until it snaps into place.
      
      
2. Close the computer cover.
   
   
3. Attach the computer stand, if it is used.
   
   

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.

4. Connect your computer and devices to electrical outlets, and turn them on.
   
   

After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up:

ALERT! Cover was previously removed.

5. Reset the chassis intrusion detector by changing Chassis Intrusion to On or On-Silent.
   
   

NOTE: If an admin password has been assigned by someone else, contact your network administrator for information on resetting the chassis intrusion detector.

6. Enter system setup and restore the settings you recorded in step 1.
   
   
7. Properly dispose of the old battery as described in the Product Information Guide.

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