Audio feedback on speakers - please help

Fenix_ZA

Fenix_ZA

New member
Hey dudes. As most of you know, I was the lucky SOB that won the BitFenix Colossus case. Anyway, I rebuilt my existing components from my old case into the new case. I have build a lot of PC's over the years so I am not new to this.

Now that it's done, I have this continuous high pitch squeaky hissing noise coming from my speakers (I use a headset). When I move my mouse the sound becomes louder on the movements. I have checked that everything is connected properly, moved usb's around, updated my realtek drivers (just in case). The cables are all neatly cable-tied in the side panel, but not too tight. All I can think off is that something is causing EM interference somewhere which is picked up in the audio. I have unplugged the front panel audio output as well.

When I unplug all usb devices the noise is still there. I use the on-board sound. I have googled quite a bit already and couldn't find any fixes that worked.

Any help/advise on the matter will be appreciated. Let me know if you need other info to assist. Thanks!
 
Do you have any external audio input devices? I get a similar issue when I have my monitor audio plugged into my rear line-in input jack. It seems to be feedback from the monitor somehow, and when I move my mouse I hear a slight crackiling noise. Note that I can only hear this when my speakers are set to a very high volume.

Try removing mic's and such or set input volumes to mute to see if it is still happening. I usually just unplug the audio cable on the monitors end to get rid of the noise.
 
Thanks for the response. I have no external audio devices plugged into my PC. I only use my headset, which is the Roccat Kave. I have unplugged the mic to see what happens but no difference.

I will scratch around further to see if anything helps. It's really annoying though.
 
I actually randomly started getting the same problem a few months ago (also got the Kaves), tried to fix it once and then just accepted I'd have to hear slight feedback when nothing is playing. I found that unplugging the USB for volume control fixes the problem, but also completely breaks the headphones, because the highest volume is so soft. Muting the mic also seems to slightly help but not much. I've got onboard sound and dedicated and both have the same issue.
 
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Namdrater said:
I actually randomly started getting the same problem a few months ago (also got the Kaves), tried to fix it once and then just accepted I'd have to hear slight feedback when nothing is playing. I found that unplugging the USB for volume control fixes the problem, but also completely breaks the headphones, because the highest volume is so soft. Muting the mic also seems to slightly help but not much. I've got onboard sound and dedicated and both have the same issue.
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I just transferred components from one case to another. The only things that changed is the case and the layout of the cables due to a different cable management structure.

The only things I can deduct from what I can see is that the audio (either via mobo or case) is picking up interference from the GPU's somehow, seeing that changes on screen affects the feedback, or there could be a small short on the back plate between the usb devices and audio outs. I won't be able to accept this and will continue to look until I find the fault. :confused:
 
Fenix_ZA said:
Like what? Components on the mobo, the mobo itself? Everything else just plugs or slots in? What else is supposed to be grounded to the case?
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Had a problem where touching my case would cause me to be electrocuted not a lot but enough to give you a fright, also my headphones would have a slight buzz. Got myself a new multi-plug and checked if my wall socket was grounded (it was not). So that might be the problem with you as well.
 
Glordit said:
Had a problem where touching my case would cause me to be electrocuted not a lot but enough to give you a fright, also my headphones would have a slight buzz. Got myself a new multi-plug and checked if my wall socket was grounded (it was not). So that might be the problem with you as well.
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Cool, I will check it out. How do you check if your wall socket is grounded? My multi-plug is fairly new so that should really be an issue - I will plug my PC directly into the wall socket just to dubble check though. Thanks for your input.
 
Fenix_ZA said:
Cool, I will check it out. How do you check if your wall socket is grounded? My multi-plug is fairly new so that should really be an issue - I will plug my PC directly into the wall socket just to dubble check though. Thanks for your input.
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Not a electrician so lets see... There should be 3 wires, live neutral and earth check that they not loose or anything. Or just unscrew one and refit it, do it with all 3.
 
This was a very old Thread on mybroadband where someone had the same problem. It was def a grounding problem, if you're getting shocked when touching the case then it's a dead give away. Can't remember what he did to fix it. Just remember you have grounding cables that need to be plugged into your MB as well. They come with any USB ports and sometimes with Sound cards. just check on your mobo.

Otherwise watch the PSU, maybe ground it by using some rubber screws. See what happens.
 
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