System battery voltage is low.

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System battery voltage is low.

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when I log on I get an Alert! which says "System battery voltage is low. F1 to continue or F2 to run setup utility." I am a retired guy and I have no idea what that means. Can anyone help?

I found some info on a thread which makes me realize I should supply more detail. I have a Dimension 8400 purchased in December 2004. I read suggestions that the problem may be that I need a new battery on the Mother Board. I read that it is a round battery similar to a watch battery, possibly a CR 2032. I am not very comfortable messing around with the insides of the computer but I should be able to handle pulling out a battery and replacing it.

Does this seem to make sense?

Verified Answer
  • Bill Garland

    Yes, it sounds you need to replace the battery on the motherboard.

    A 3-V CR2032 lithium coin cell is needed, this can be purchased from a Radio Shack, WalMart, or most pharmacies.

    The details for replacing the battery are HERE

    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

All Replies
  • Bill Garland

    Yes, it sounds you need to replace the battery on the motherboard.

    A 3-V CR2032 lithium coin cell is needed, this can be purchased from a Radio Shack, WalMart, or most pharmacies.

    The details for replacing the battery are HERE

    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • You can, if you're veeeeerrrry careful, open the computer case, power up the computer, wait until the battery error message comes up, and then change the battery while the computer is on.  This will prevent the loss of all power to the motherboard and eliminate the need to restore any settings that would be have been lost if 100% of power was gone.   Just be sure not to drop the battery on any electronic components when you do it.  Otherwise, you could short-out the component you dropped the battery on.  Just did our 8400 with the power was on; no problems whatsoever,

  • ronray43

    You can, if you're veeeeerrrry careful, open the computer case, power up the computer, wait until the battery error message comes up, and then change the battery while the computer is on.  This will prevent the loss of all power to the motherboard and eliminate the need to restore any settings that would be have been lost if 100% of power was gone.   Just be sure not to drop the battery on any electronic components when you do it.  Otherwise, you could short-out the component you dropped the battery on.  Just did our 8400 with the power was on; no problems whatsoever,

    ronray43

    That does not seem to be a very smart method of replacing the motherboard battery.   Surprise

    Personally, I always take picture of the setup settings prior to replacing battery, with a digital camera without the flash.

    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • Big SmileI suggest you shut down your computer but do not unplug the power cord. lay the 8400 on its side and open from the back.  Toward the bottom of the motherboard near the center there is a flat battery that in mine is a cr2032 , 3vdc. This battery keeps power to the cmos chip.  There is a metal tab holding on the top edge of the battery. Get a new battery ready and push the metal tab back from the battery until the battery pops out. It may have to be helped a little. Then install the new battery in by sticking in the + side of battery edge under edge of holder then pressing the othe edge down to under the metal tab and that should do it. Then try turning the computer back on and see what it says.  Dave Hall

  • mine still wont work after doing this still says alert! system voltage is low 

  • kelvin21

    mine still wont work after doing this still says alert! system voltage is low 

     
    kelvin21
     
    Need some more information.
     
    What is the computer model and version of windows?
     
    Have you replaced the motherboard coin cell battery?
     
    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • hi yes changed it to a duracell cr2023 restarted pc check everything changed the date in the settings every think tryed the cmos reset pins still saying voltage low and its a dell xps 600 and its windows xp 

  • I presume that's just a typo in the number for the fresh battery you installed. Wink

    Did you install the new battery right-side-up?

    If this answers your question, please click  Yes  

    Ron

    Forum Member since 2004

    I am NOT a Dell employee

  • kelvin21

    To get the motherboard to recognise this new battery properly, power cycle the computer 3 times [switch it on, get it to POST then switch it off again].

    After the third power cycle the low voltage alert message should disappear.

    If the alert message still displays, double check the output voltage of the replacement battery.

    It should read anywhere from 3V to 3.2V.

    If it does then the sensing circuit on the motherboard it faulty.

    You could also, try clearing the event log in System Setup [BIOS].

    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • put in the right way 

    what do you mean by get it to POST ? sorry new to this 

    its a 3v battery 

  • kelvin21

    Boot [Start] the system and post into windows.

    Try checking the ouput voltage with a meter.

    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • got nothing to check voltage with and it says system battery thing again and previous attemps at booting this system have failed checkpoint [bye ].

  • anyone know how to fix please