Question about Dell OptiPlex GX520 PC Desktop

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Dell Optiplex GX520 message: "Alert! System battery voltage is low." PC clock is 5 minutes behind.

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  • Amelia Whitehead Feb 17, 2009

    Well, I'm not experienced in computer maintenance, so I hesitated to rate it as FixYa! just yet, since I will need to learn how to safely open the PC, and how to adjust the clock setup.

  • Amelia Whitehead Feb 17, 2009

    Thank you for your prompt answers and extreme thoroughness!!



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  • 13,433 Answers


there is a 3 volt flat battery inside the computer, it in most cases clearly visible.

Dell Optiplex GX520 message: - 4047395.gif
Replace it with the same type of battery, then adjust the clock in the system setup.

All done, all fine.

Let me know if you need anything else.


Posted on Feb 17, 2009

  • 1 more comment 
  • Ekse Feb 17, 2009


    If the problem is solved I would appriciate a Fixya rating instead of helpful.



  • Ekse Feb 17, 2009

    Oh I see.

    1. unplug all the cables from the computer

    2. there are a few screws on the cover of the case it should slide open after that

    Heres a picture

    the side should open like this, debends on the spesific computer.

    the computer is a low voltage device, there is 12volts inside the computer when its turned on. So you can't kill yourself while working on a computer. Unless it hits you on the head, which is very unlikely.

    • find the memory battery, should look as the picture before.

    • snap out the battery.

    • insert the new battery

    Next is the clock adjustment.

    When you turn the computer on, it will say somewhere on the screen to press button to enter setup or cmos. Press the button, its either f1, f2, del, etc.. it reads on the monitor.

    when your on the setup you will need to find the clock adjustment, feel free to play around. If you think you did something wrong, just exit the setup and discard the changes, or reset. When you have done the correct adjustments just save and exit. the settings wont be saved automatically you need to save it on exit, so you can play around freely.


    Let me know if you need anything else.



  • Ekse Feb 17, 2009

    Also as I said its low voltage but always unplug before working inside. Thanks



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