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*New Build* Buzzing Through Both Audio Jacks

Cale Salad

Hello fellow tech enthusiasts! I finished my first PC build and am having an issue with audio...


There is an obnoxious buzzing noise coming from both front and rear IO 3.5mm audio jacks, evident when listening with earbuds or my battery powered JBL Flip 4 connected via 3.5mm aux cable. It really ramps up when playing games. I think it might be there when not running games too as well, it's just quiet. Its presence seems to be directly correlated to the presence of my GPU's coil whine (they both intensify at the same time booting up and exiting games). The noise is affected by scrolling up and down with my mouse. I would appreciate any insight on this! I will buy a different mobo, psu, and maybe case if I can't figure it out.


I've researched a total for more than 5 hrs on what this could be, but haven't found any issues that fit my situation exactly...


Things I think IT COULD BE:


Coil whine (although from what I've learned coil whine doesn't come through the audio jacks too?)

EMI + badly shielded onboard audio chip (I'm using the lower PCIe slot right next to the audio chip)


Improper grounding (issue w/ case?)


THINGS I'VE TRIED w/ no success:

*updating BIOS then uninstalling and reinstalling drivers (audio & LAN)

*using a HumX (that seemed to decrease it, but the noise was still was present)

*unplugging all fans to ensure it wasn't vibration from them

*pulling front IO audio cable away from power cable to MOBO and away from PSU

*enabling the onboard HD Audio via BIOS

*unplugging my peripherals and wireless Bluetooth and WIFI antennas

*muting both audio outputs (noise still present)

*changing bit rate and Mhz of audio output in windows



Windows 10 Pro


CPU: Ryzen 9 5900x


MOBO: MSI x570 MAG Tomahawk WIFI

PSU: Seasonic FOCUS GM-850

RAM: Crucial Ballistix 3200 MHz DDR4


Boot Drive - KC3000 PCIe 4.0 NVMe M.2 SSD

Storage Drive - SAMSUNG 970 EVO Plus SSD 2TB - M.2 NVMe


CPU Cooler: Noctua NH-D15 chromax

CASE: Corsair 5000D

FANS: Noctua NF-S12B redux


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This is actually called a Grounding Loop. You will need to get yourself a grounding Loop Isolator that should solve your troubles.



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Ryzen 9 5900x | Noctua NH-D15 | Asus Crosshair VIII Hero (Wi-Fi) | RTX 3090 Founders | Ballistix 32gb 16-18-18-36 3600mhz 

1tb Samsung 970 Evo | 2x 2tb Crucial MX500 SSD | Phanteks Enthoo Evolv ATX | Corsair HX850 PSU


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 Ryzen 7 3700x | Asus B450-F Strix | 16gb Gskill Flare X 3200mhz | Corsair RM550x PSU | Asus Strix GTX1070 | 250gb 860 Evo m.2

Phanteks P300A |  Elgato HD60 Pro | Avermedia Live Gamer Duo | Avermedia 4k GC573 Capture Card


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