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Adept I
Adept I

Audio crackling and USB issues with PCIe Gen 4.0

Running an NVIDIA RTX 3090 FE in my GIGABYTE X570 Aorus Ultra with PCIe gen 4.0, I get audio crackling from the integrated audio chipset and USB (mouse, webcam) glitches/stutters/resets. This happens under certain loads, especially when screen capturing from different applications like TechSmith Camtasia and Microsoft Teams. If I set the PCIe to gen 3.0 in the BIOS, everything seems fine (except my NVME can't run at full speed). I upgraded from an NVIDIA RTX 2080 Ti FE (PCIe gen 3.0) to the RTX 3090 and the issues started. This might not be isolated to RTX 3000 series cards or Gigabyte motherboards, as some AMD GPU and other motherboard users have reported similar issues. The commonality seems to be AMD CPUs with peripherals running PCIe gen 4.0.

My system details:

  • CPU/Motherboard: Ryzen 9 3900X, Gigabyte Aorus Ultra v1.0 with F31e BIOS
  • RAM: 128 GB - G.Skill Trident Z Neo (4 x 32 GB) @ 3200 MHz
  • GPU: NVIDIA RTX 3090 FE, Game Ready Driver 457.09, Windows HAGS enabled
  • Webcam: Logitech BRIO 4k with latest firmware 2.4 (video 2.0.30, EEPROM 1.18)
  • OS: Windows 10 Pro Version 2004 Build 19041.610
  • Power Supply: Corsair HX1200i in multi-rail OCP

What I have tried so far:

  • Tested front and back analog audio outputs.
  • Tested Bluetooth headset (no audio crackling)
  • Closed out of all game apps
  • Turned off Windows Game Mode
  • Verified power at Max Perf in Nvidia Control Panel -> Managed 3D Settings -> Power Management Mode: Prefer Maximum Performance
  • Changed NVIDA PhysX to CPU, also PhysX to GPU.
  • Turned off Xbox Game Bar
  • Installed latest chipset drivers from Gigabyte website
  • Installed latest chipset drivers from AMD
  • Device Manager, View by Resources, removed no longer attached items (e.g., 20280 Ti)
  • Disabled hibernation / fast startup in Windows
  • Set Windows Power management to Ryzen High Performance
  • Disabled HPET in BIOS & Windows
  • Disabled Cool ‘N’ quiet in BIOS
  • Performed clean install of NVIDIA drivers, both via NVIDA and DDU
  • Changed RAM back to factory speed (no XMP)
  • Set PCIe to 3.0 (resolves issue, but limits NMVE performance)
  • Moved analog audio to LCD display audio output, getting audio from 3090 via Display Port (no audio crackling)
  • Moved mouse to USB 3.2 Gen port. This seemed to help.
  • Updated NVIDIA drivers to 457.30.
  • Moved Logitech webcam to USB 3.2 gen 2 port. Possibly fewer webcam glitches.
  • Set DRAM Voltage to Normal (from Auto)

Any suggestions would be appreciated.

Thank you!

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9 Replies
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Re: Audio crackling and USB issues with PCIe Gen 4.0

A high frequency EMI from PCIe somehow affect your audio, or this is some elaborate driver/bios bug. Either way there's no fix beside using pcie 3.0 or external DAC.  You might RMA your board if you want. 

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Adept I
Adept I

Re: Audio crackling and USB issues with PCIe Gen 4.0

It ends up that an increasing number of people are reporting this issue, across a variety of motherboards, with both AMD and NVIDIA GPUs. The only commonality so far is PCIe Gen 4.0, AMD CPU, and AMD chipset. My guess is there's some form of a voltage management issue with AGESA/BIOS.

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Re: Audio crackling and USB issues with PCIe Gen 4.0

That could also be a possibility. 

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Journeyman III
Journeyman III

Re: Audio crackling and USB issues with PCIe Gen 4.0

You have literally the exact same issue as me. At first I thought it was my sound blaster since tons of people are complaining about the same on the sound blaster subreddit, but I dug further and it even happens with onboard sound! I don't have issues with USB devices when running on PCI-E 4, only sound issues, but my buddy has the sound issues AND USB issues on PCI-E 4.

We should be screaming about this, it's been going on for what looks to be the beginning, but just no one had PCI-E 4 GPUs to test it.

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Adept I
Adept I

Re: Audio crackling and USB issues with PCIe Gen 4.0

I tend to agree that this issue has been there for a long time. As I search older posts, I see similar symptoms being reported. Hopefully, it's an issue that a BIOS update or chipset driver update can resolve. One website had a post about it being a known issue and AMD will resolve in a future set of chipset drivers.

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Journeyman III
Journeyman III

Re: Audio crackling and USB issues with PCIe Gen 4.0

It REALLY feels like a voltage problem, but I'm not brave enough to up the voltage on the SoC... all I know is I try the DPC latency monitor and it says everything is 100% fine, all while I hear popping on my headphones.

I hope they can fix it soon, running PCI-E 3 is gonna hurt when nVidia IO comes out, because that'll likely hugely benefit from PCI-E 4 speed.

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Adept I
Adept I

Re: Audio crackling and USB issues with PCIe Gen 4.0

I've experimented with VDDG, SOC, and VDDP, but I have not found a combination that improves the situation.

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Adept I
Adept I

Re: Audio crackling and USB issues with PCIe Gen 4.0

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Adept I
Adept I

Re: Audio crackling and USB issues with PCIe Gen 4.0

Gigabyte released BIOS F31J for X570 Aorus, and it includes an update to AGESA. I am seeing improvement with this BIOS update (but not full issue resolution). If you're running a Gigabyte X570 Aorus, this is worth testing.

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