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Thread: Need tips for eliminating HDD noise

  1. #1
    Constant Bitrate coffeejolts's Avatar
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    Need tips for eliminating HDD noise

    I am getting a fair amount of HDD noise through my speakers. I have an Asus Pundit MB using onboard sound (SoundMax). The HDD noise drives me nuts, especially if I'm playing a quiet song. The harder the computer works, the worse the noise gets. The engine speed does not affect the noise, plus I have a nice solid ground point, so I don't really think grounding is the issue here.

    I did read where some people had success eliminating HDD noise by grounding the PC chassis. I tried this, but it did not help. I also tried using a cheap usb sound card instead of the onboard sound. That didn't help either. My next step is to try using an Audigy PCI audio card that I have laying around. Is there anything else I should try?

  2. #2
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    did you try ground loop isolator?
    something like this:
    http://www.radioshack.com/product/in...entPage=search

  3. #3
    Constant Bitrate coffeejolts's Avatar
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    Quote Originally Posted by skuller View Post
    did you try ground loop isolator?
    something like this:
    http://www.radioshack.com/product/in...entPage=search
    No, I did not. Everything I've read says that you should not need one if you do a proper ground. When I have some time, I'll hook up a AC PSU to the carputer and see how it sounds. If the noise is gone, I'll have a good indication that it's a grounding problem.

  4. #4
    Constant Bitrate coffeejolts's Avatar
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    Ok, I just tried an Audigy 2 in place of the onboard sound. The HDD is much fainter now, but it's still there.

  5. #5
    Who am I? HiJackZX1's Avatar
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    Quote Originally Posted by coffeejolts View Post
    Ok, I just tried an Audigy 2 in place of the onboard sound. The HDD is much fainter now, but it's still there.
    The easiest thing to do is buy a Ground Loop isolator, it will remove the device whine 100%. If I were you though, I would get the isolator from Best Buy. http://www.bestbuy.com/site/olspage....=1122655296186, it is the only one I have used that does not muffle sound quality, infact it improves it. I use an isolator on the front, rear and sub. The price ($17.99) is a bit much, but like I said it does not mess up sound quality. Try Ebay'ing it, I got lucky with mine and got 5 of the units for $20.00.
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    Constant Bitrate coffeejolts's Avatar
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    I broke down and bought one of those isolators (IEC GLI) off of Ebay. It came to $11 including shipping, so not too bad. In the meantime, I'm going to keep fiddling around and see if I can't solve the problem without the GLI.

  7. #7
    Newbie visenri's Avatar
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    You have to check windows sound mixer and make sure all unused audio sources are in mute (mainly mic, aux, line in, etc).

    In 90% of cases mic input picks up noise from HD and other sources, it's very sensitive, this is norlmal. Just mute all unused audio sources.
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  8. #8
    Constant Bitrate coffeejolts's Avatar
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    Well, the GLI "fixed" the issue- or should I say "hid". I don't notice any difference in sound, but I wish I could have eliminated the noise without the GLI.

  9. #9
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    The only way I think is possible is to put ferrite chokes over each of the cables of the device that is creating or receiving the noise. Its worth a shot.
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