Crackling sound from USB Ports

Jan 29, 2019
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Hello,

I have a big problem for a months. Mouse and Keyboard are connected in 2 USB ports and when they are connected I can hear noise,crackling sound and it's very annoying. When I disconnect them, crackling sound goes away. It's same when I connect usb flash drive, iphone... crackling sound!
I tried different ports but it's same...
Here's video where you can hear that sound:
https://www.youtube.com/watch?v=D4ZO5QYi2wA

I noticed that when I move mouse, noise is louder...
I don't know how to fix it.. Anybody had experience with this?
Please help me ...

My motherboard: ASUS M5A78L-M LX3
 
Jan 29, 2019
2
0
10
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I'm sure it's coming from USB ports and there's noise only when I connect something in port.. But I'll check when I come home about coil whine/capacitor tonight, I dont know what is coil whine tbh..

CPU- AMD FX-6300 Six-Core Processor 3.5GHz
GPU- Sapphire R7 250 1GB GDDR5
PSU- MS-550, 550 W ...

Thank you for answer..
 
Coil whine might be what you experience that irritating sound/buzzing.
That psu is sketchy BTW.
I have/had 2 revisions of that MS PSU's, the oldest one that i have is still working in perfect condition, the newer is a bit sketchy to me cause the transformer gets hot.
 

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