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    No sound onboard for INTEL DG33TL motherboard

    Hi
    I have this motherboard that worked fine until two weeks ago when the sound became squeaky and crackling. A few days later, there was no sound at all. In Device Manager (see attached) the audio card is now shown as having a problem.

    First I tried easy things like uninstalling audio drivers then installing them again. No luck. It said the drivers are not compatible with the sound card. But the drivers are the same ones from Intel that I used many times before. Then I tried resetting the BIOS. Made sure the audio is enabled. No luck. Then I used programs that list system information, like Speccy, HwInfo, etc. All of them said there is no audio device on board.

    So my guess it is a hardware issue. The audio adapter is Intel 82801IB ICH9 - High Definition Audio [A2] and the High Definition Audio Codec is SigmaTel STAC9271D.

    I have posted detailed photos of the board hoping you'll help me pinpoint what/where to measure then advice me what to do next.

    Thank you

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  2. #2
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    Re: No sound onboard for INTEL DG33TL motherboard

    You tried the usual methods to track down the problem. Is the card installed in a slot? Then it may help to remove the card for inspection and cleaning. All power should be off when you do so. Take precautions to prevent static charge.

    Examine all slots and tabs which connect card and computer. Clean contacts as well as possible. To shine up dull tabs a pencil eraser is effective (gentle and thorough).

    Reinstall the card. If it still is a problem, then suspect the card's power supply. It is the most likely thing to deteriorate both the audio and electronic communication, yet also do so gradually for a few days.



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  3. #3
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    Re: No sound onboard for INTEL DG33TL motherboard

    There is no audio card. It is a motherboard with onboard sound. The photos show it clearly. See SigmaTel STAC9271D chip. I took the photos hoping that someone will tell me how to test if it is the chip bad or something around it, like a voltage regulator for it or similar.



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  4. #4
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    Re: No sound onboard for INTEL DG33TL motherboard

    Looks like the IC itself or one of it's support components might have died. You will find it hard to get a replacement and even harder to fit it to the board. Your best bet is to buy a plug-in audio card and disable the original in the BIOS settings. The sound quality should be the same or better than the on-board device can produce.

    Brian.
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    It's better to share your questions and answers on Edaboard so we can all benefit from each others experiences.



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    Re: No sound onboard for INTEL DG33TL motherboard

    I've tried to use this USB sound 'card' after I disabled onboard audio in BIOS and removed any trace of its drivers. The drivers that came with it didn't install throwing an error in the end: 'drivers not digitally signed'. That message could be a red herring though. My suspicion is that whatever hardware issue there is on the motherboard, that prevents using other sound card.



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  6. #6
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    Re: No sound onboard for INTEL DG33TL motherboard

    "Not digitally signed" just means they haven't paid Microsoft to test it, no decent manufacturer would make a product that wouldn't pass 'signing' though.

    I don't use Windows but in theory, you can run more than one sound card (I have 3 running simultaneously on Linux here) and they should be completely independent of each other. If you install the USB device and tell the control panel to use it as the default device, it should work, regardless of the condition of the on-board one.

    Brian.
    PLEASE - no friends requests or private emails, I simply don't have time to reply to them all.
    It's better to share your questions and answers on Edaboard so we can all benefit from each others experiences.



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