Question about Dell Dimension 9150 (DIM915MIN) PC Desktop

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Audio volume keeps changing by itself

Hi,
dell dimension 9150, about 3 years old with SB audigy 2 ZS soundcard.
After the computer has been on for some time (never the same amount of time, but lets say between 10 & 30 mins) the sound volume will suddenly change, either quieter or louder, its choice! a few seconds later it will change back again, and so on. It only seems to affect the speaker system (dell 5.1 system); if you are on headset, it does not happen. I have re-seated the sound card and re-installed the soundcard driver, both without any success. I suspect it is the soundcard failing, but would that not also affect the headphones?

HELP
TIA

Posted by on

  • taco_killer Nov 16, 2008

    Thanks walterb_8



    not sure if I will be able to connect the same speakers to the on-board audio, but it gives me somewhere to start; I'll let you know



    tks again

  • taco_killer Nov 19, 2008

    Nice one, Walter; your advice has enabled me to isolate the problem as a speaker problem. Thanks again

    Taco

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  • Dell Master
  • 998 Answers

No, the headphone output is designed for 2 speaker output. Just recently I had a customer who had no sound coming from the desktop speakers yet the headphones worked just fine.
I believe that your model has a sound circuit integrated into the motherboard. It may have a “plastic cap” covering the audio ports (next to the USB ports). If you remove the sound card and enable the integrated audio in the BIOS, you can check to see if the sound card is actually the problem.



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Posted on Nov 16, 2008

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Posted on Jan 02, 2017

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