On 7/11/05, Eben King <eben1@tampabay.rr.com> wrote:
> I replaced my Soundblaster Live! 5.1 with a different one just like it
> (actually I moved it from the bottom slot to the one above that too), and
> now there's a hiss + 60 Hz hum in the speakers I hadn't noticed before.
>
> Troubleshooting:
>
> It's unaffected by the mixer's "Master" slider, so it's not because one of
> the inputs is noisy.
>
> I disconnected the speakers from the card, no noise. So it's from the card,
> not the speakers.
>
> I unloaded the driver modules, still noisy. So it's the hardware causing
> it, not the software.
>
> I didn't try going to the BIOS to see if it's Linux _itself_ that causes the
> noise, but I suspect that if the card's hot, it's noisy.
>
> Suggested solutions:
>
> Wrap the card with insulated foil/conductive shielding? Upgrade the PS?
> Move the card away from other cards? Deal with it, because nothing works?
>
Check your recepticals that are powering the equipment, look and see if
the polarity is reversed, the hot side should be on the narrow blade and
the neutral should be on the wide blade, and make sure your ground blade
is grounded, that is where I have found more of those issues, if it is not there
is sure sounds like you have a ground loop somewhere.
-- Chuck Hast To paraphrase my flight instructor; "the only dumb question is the one you DID NOT ask resulting in my going out and having to identify your bits and pieces in the midst of torn and twisted metal."----------------------------------------------------------------------- This list is provided as an unmoderated internet service by Networked Knowledge Systems (NKS). Views and opinions expressed in messages posted are those of the author and do not necessarily reflect the official policy or position of NKS or any of its employees.
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