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rhsd
Adept II

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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