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Onboard Audio Feedback Issues!

post #1 of 25
Thread Starter 
Just as the title says, I'm having problems with audio feedback on my motherboard. I've done alot of research, and it seems that this issue is common on many motherboards.

To be more detailed, the feedback comes out of my speakers (plugged in the back port) and headphones (plugged in the front port). But, I don't hear feedback when I plug my headphones into the back port. When I start the computer, there is no feedback until windows7 desktop loads. When open programs and load webpages, the high pitch screeching and static gets extremely loud. What I have been doing is decreasing the speaker volume (physical nob on the speaker), and the feedback disappears. The only problem with this is that at max volume in Windows7, the sound is not that loud. With my headset, the feedback is unavoidable unless I want to turn the sound so low that it's not audible.

Could it be driver problems? Could it also have something to do w/my GPU since it has its own sound? The only solution I was able to find from researching was buying a discrete audio card, but I would like to avoid that if possible. Any help would be appreciated; I am getting tired of listening to a constant high pitch frequency while gaming. I think it is messing up my brain.
Edited by charlie310 - 5/11/11 at 3:32pm
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Ol' Betsy
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post #2 of 25
Quote:
Originally Posted by charlie310;13463522 
Just as the title says, I'm having problems with audio feedback on my motherboard. I've done alot of research, and it seems that this issue is common on many motherboards.

To be more detailed, the feedback comes out of my speakers (plugged in the back port) and headphones (plugged in the front port). But, I don't hear feedback when I plug my headphones into the back port. When I start the computer, I can hardly notice the feedback until I open a program or something; then it gets extremely loud. What I have been doing is decreasing the speaker volume (physical nob on the speaker), and the feedback disappears. The only problem with this is that at max volume in Windows7, the sound is not that loud. With my headset, the feedback is unavoidable unless I want to turn the sound so low that it's not audible.

Could it be driver problems? Could it also have something to do w/my GPU since it has its own sound? The only solution I was able to find from researching was buying a discrete audio card, but I would like to avoid that if possible. Any help would be appreciated; I am getting tired of listening to a constant high pitch frequency while gaming. I think it is messing up my brain.

It's not a mobo issue. I guess your case is not grounded. Mine too, and I also get feedback. Ground the case somehow, and it will dissapear smile.gif
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post #3 of 25
I have the exact same issue with my system. I dont think the EMI is due to my motherboard since I can hear it when the audio jack is touching off any other metal part of my case.
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post #4 of 25
Grab a cheap soundcard, even low end models will trounce onboard quality - not to mention get rid of these interference issues.
post #5 of 25
Quote:
Originally Posted by Iceman23;13468365 
Grab a cheap soundcard, even low end models will trounce onboard quality - not to mention get rid of these interference issues.

If the case is not grounded, he'll still have noise even if he buys the most expensive sound card out there.
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post #6 of 25
Quote:
Originally Posted by ronnin426850;13468420 
If the case is not grounded, he'll still have noise even if he buys the most expensive sound card out there.

True true, if a ground loop is actually what's at fault (sounds like it). In any case it's a worthy upgrade biggrin.gif
post #7 of 25
Thread Starter 
Quote:
Originally Posted by ronnin426850;13466902 
It's not a mobo issue. I guess your case is not grounded. Mine too, and I also get feedback. Ground the case somehow, and it will dissapear smile.gif

The case is grounded. Even $50 cases are grounded nowadays, FYI. My case is over the $100 range.

I did some more investigating and found that there is no feedback until windows7 desktop appears onscreen. When looking at the same webpage, the feedback abruptly subsides after some time. But, once I load another webpage, it continues and will change pitch. Hence, I believe it has something to do with one of my PC components (like the CPU, GPU, etc.). I also tried disconnecting the front panel connection since it connects really close to my PSU, and there was no change.

The speakers are perfectly fine because when they are connected to my laptop, no feedback can be heard.
Ol' Betsy
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Ol' Betsy
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post #8 of 25
Quote:
Originally Posted by charlie310;13469845 
The case is grounded. Even $50 cases are grounded nowadays, FYI. My case is over the $100 range.

I did some more investigating and found that there is no feedback until windows7 desktop appears onscreen. When looking at the same webpage, the feedback abruptly subsides after some time. But, once I load another webpage, it continues and will change pitch. Hence, I believe it has something to do with one of my PC components (like the CPU, GPU, etc.). I also tried disconnecting the front panel connection since it connects really close to my PSU, and there was no change.

The speakers are perfectly fine because when they are connected to my laptop, no feedback can be heard.

Yes, yes, dude.
Even my case is grounded, every case is "grounded".

BUT

It is grounded to the PSU!
The PSU is grounded to the socket on the wall!

And only 50% of those are actually grounded themselves!
You can have a 15000$ case, if your socket is not grounded, the case isn't smile.gif

That's the case with me.
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My Rig
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Ex-wife's Rig
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CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
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2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
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post #9 of 25
Thread Starter 
Quote:
Originally Posted by ronnin426850;13470135 
Yes, yes, dude.
Even my case is grounded, every case is "grounded".

BUT

It is grounded to the PSU!
The PSU is grounded to the socket on the wall!

And only 50% of those are actually grounded themselves!
You can have a 15000$ case, if your socket is not grounded, the case isn't smile.gif

That's the case with me.

Yes, I know that. Obviously, any 3 pronged plug is grounded. Just because someone doesn't have many posts or reps, doesn't make them a dummy. smile.gif

I was referring to the "non-socket ground". Most cases over $50 have it (it usually consists of a wire that grounds to non-metal parts of case).
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Ol' Betsy
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post #10 of 25
so getting a new soundcard would not fix this problem?

How would I go about grounding the case?
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My System
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