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Battery

Dell™ OptiPlex™ SX260 Systems User's Guide

CAUTION: Before you begin this procedure, follow the steps in "CAUTION: Safety Instructions."

CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's 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 manufacturer's instructions.

1. If you have not already done so, make a copy of your configuration information, found in system setup (see "System Setup").
   
   
2. Remove the computer cover.
   
   
3. Locate the battery socket labeled BATTERY (see "System Board Components").
   
   
4. To remove the battery, grip the battery and slightly twist it as you lift it out of the connector.
   
   
5. Insert the new battery into the socket with the side labeled "+" not facing the opening, and snap the battery down into place.
   
   

1	location of the battery connector

6. Replace the computer cover.
   
   
7. Reattach the stand (if used).
   
   
8. Replace the cable cover (if used).
   
   

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

9. Connect your computer to the adapter cable and devices to electrical outlets, and turn them on.
   
   

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

ALERT! Cover was previously removed.

10. Reset the chassis intrusion detector by changing the Chassis Intrusion option to Enabled or Enabled-Silent.
    
    

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

11. Enter system setup and restore the settings you recorded in step 1.
    
    
12. Properly dispose of the old battery.
    
    

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