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.
      
      

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.

Deep Sleep Battery Saver Pro v2 2 Full APK

Deep Sleep Battery Saver Pro v2.2 Full APK. Deepsleep is constantly saving mode the battery while the device DeepSleep off the screen

LifeHacker : " A large number of applications to save battery life , but it takes the idea to a whole new level "

In Deepsleep mode, Wifi, 3G , stop the background applications. Therefore, most applications are not running , including Facebook, Google service, etc. . Then wake up constantly in order to download e -mail , Facebook status synchronization , etc. . It is defined by the frequency and duration woke Deepsleep

In advanced ( PRO ) mode, you can customize several parameters, including the implementation period day / night activity, delay the timing strategy of the screen skipped applications, etc.

features

? 5 predefined profiles : sweet , Balance , strong, aggressive, sleep. They vary in frequency, duration , and other parameters . The first is less harmful , but saving less battery and vice versa

? custom ( PRO ) - for advanced users. If you need more customization, select and edit profile

? Custom Profile Settings

- Independent, Monday to Friday vs parameters weekend

- Frequency : DS device is on the way at a selected frequency

- Duration: The device wakes up after a selected time after each cycle frequency

- Wileless network : radio control configuration for DS

- Sync: Synchronization Control Strategy and account synchronization , automatic synchronization

- Applications: Please stop for applications that DS

Only root - twisting process : - CPU

- Date Night : During this period, the unit is in SD mode

? General Settings

- Disable the delay screen: a small delay before starting DS . This option is used to prevent the display alternates rapid

- Whitelist applications are still unaware of the DS as a music player online

- Last ingored applications ignore the recent applications

- Use the APN settings : rotation data toggler 3G/4G/mobile

- Check background info : Once selected, the DS mode is ignored if traffic exceeds a defined threshold

- Threshold of traffic and traffic sampling

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