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Journeyman III
Journeyman III

Re: Zen 3 processors/chipsets have HUGE issues with USB ports

What are you talking about, we clearly all have different motherboard and all having the same issues, the only commonality here is the CPU

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Journeyman III
Journeyman III

Re: Zen 3 processors/chipsets have HUGE issues with USB ports

r9 5900
asus B550-E Gaming
While asus aura installed (which uses usb-2.0 port) there is a problem using usb audio Focusrite Scarlett 2i2 - cracles and distortion in sound
the online stream in Discord lead to crash of soundcard and all aura system to continuous reloading of both of them. Uninstalling of Aura solves the problem.

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Journeyman III
Journeyman III

Re: Zen 3 processors/chipsets have HUGE issues with USB ports

AMD has acknowledged the issue now so fingers crossed a fix should be on the way.

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Journeyman III
Journeyman III

Re: Zen 3 processors/chipsets have HUGE issues with USB ports

Trek you talk too much and know very little. What are you going to say now that AMD has now officially acknowledged the issue?

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Adept I
Adept I

Re: Zen 3 processors/chipsets have HUGE issues with USB ports

I get a full USB reset of all my USB devices when using my Oculus Rift headset.

I have opened an issue with oculus, as my Rift S keeps resetting. First I thought it was steam losing comms, then realized it was happening on Oculus (non Steam) games, so thought it was Oculus. Now it appears to be this. The reason I know its not my Oculus anymore is today when I was using the headset the reset happened, this time I was sitting in front of my PC (not in another room on the VR), my web camera reset at the exact same time, so its all my USBs. I first noticed it happening I would say about 2 weeks ago (but it could have been broken longer I just didnt see the reset on VR). 

Its definitely a USB reset, it could be the motherboard, drivers, CPU. I have the following setup

AMD Zen 3 Ryzen 3900x

Gigabyte Aorus x570 Elite Wifi Motherboard 

NVidia RTX 3090 

64GB Corsair Vengeance LPX 3000MHz DDR4

3 X NVMe PCIe4 SSDs (Corsair/Sabrent)



1000W PSU

I have swapped all the USBs around as I have unused ports), switched some of my 2.0 USBs over to using a self powered Hub.

USB 3's are 

Oculus Rift S

USB 2's are

Powered Hub

    Keyboard wifi 

    Mouse wifi

    Numberpad wifi

Xbox Controller 


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Adept I
Adept I

Re: Zen 3 processors/chipsets have HUGE issues with USB ports

Ok I've fixed it. I moved the USBs around. Now my USB config looks like this,  and I have not had any issues. BTW I didnt change to PCIe 3 from 4 as recommended etc. I have only moved my USBs around.

If you notice the Oculus Rift S is on its own hub. I had to muck about quite a bit to get this config, as it maps to the ports on the MB in a weird way. My MB being an Aorus x570 Elite Wifi. My MB is on the F31q BIOS.

My Computer: LIGHTNING - Windows 10 Home x64
|---AMD USB 3.10 eXtensible Host Controller - 1.10 (Microsoft)
|   \---USB Root Hub (USB 3.0)
|       |HS-[1-1]
|       |HS-[1-2]
|       |HS-[1-3]
|       |HS-[1-4]
|       |FS-[1-5]: Intel(R) Wireless Bluetooth(R) - 2× Media, COM7, COM8, COM6, COM9
|       +---[1-6]: Generic USB 2.0 Hub
|       |SS-[1-7]
|       |SS-[1-8]
|       |SS-[1-9]
|       \SS-[1-10]
|---AMD USB 3.10 eXtensible Host Controller - 1.10 (Microsoft)
|   \---USB Root Hub (USB 3.0)
|       |HS-[2-1]
|       |---[2-2]: Rift S USB 2.1 Hub
|       |   |HS-[2-2-1]
|       |   \FS-[2-2-2]: USB Composite Device - COM5, Audio, 2× HID
|       |HS-[2-3]
|       |HS-[2-4]
|       |SS-[2-5]
|       |---[2-6]: Rift S USB Hub
|       |   \SS-[2-6-1]: USB Composite Device - Image
|       |SS-[2-7]
|       \SS-[2-8]
\---AMD USB 3.10 eXtensible Host Controller - 1.10 (Microsoft)
    \---USB Root Hub (USB 3.0)
        |---[3-1]: Generic USB 2.1 Hub
        |   |FS-[3-1-1]: USB Composite Device - Mouse, 2× HID, Keyboard
        |   |FS-[3-1-2]: USB Composite Device - Mouse, Keyboard, 2× HID
        |   |LS-[3-1-3]: USB Composite Device - 2× Keyboard, Mouse, 2× HID
        |   \HS-[3-1-4]
        |43-[3-2]: Unknown USB Device (Device Descriptor Request Failed)
        |---[3-3]: Generic USB 2.0 Hub
        |   |HS-[3-3-1]
        |   |FS-[3-3-2]: Xbox 360 Controller for Windows - HID
        |   |HS-[3-3-3]
        |   \FS-[3-3-4]: USB Composite Device - WebCam, Audio
        |FS-[3-4]: USB Input Device - 2× HID
        +---[3-7]: Generic SuperSpeed USB Hub


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Esteemed Contributor III

Re: Zen 3 processors/chipsets have HUGE issues with USB ports

AMD Investigating USB Issues in 500-Series Motherboards

AMD has launched an investigation into reports of USB problems in its 500-series motherboards and is asking affected users to sound off on the problem. It’s also invited users to contact it directly by opening a support ticket. The company says it’s engaged in root cause analysis and that some users who post information in the appropriate Reddit thread may be contacted later to provide additional details.

The problem with potential X570 and B550 board stability was indirectly raised by PowerGPU earlier this month. We reported on the PowerGPU situation and the fact that reported RMA rates from other retailers do not match the failure numbers PowerGPU had seen. The company has since taken down its initial tweet and says it is working with AMD to resolve what might have caused its problems. But while there is no public proof that AMD CPUs are failing, AMD X570 and B550 motherboards both seem as though they may have some problematic tendencies. AMD’s Reddit post states:

AMD is aware of reports that a small number of users are experiencing intermittent USB connectivity problems with 500-series chipsets. We have analyzed the cause and at this time would like to ask the community for assistance with a small selection of additional hardware configurations In the next few days, some r / Amd users may be contacted directly by an AMD representative (u / AMDOfficial) through Reddit’s PM system with a request for more information.

Reports in the requisite thread are varied as to the cause and potential solutions. Multiple users are reporting that heavy USB bus activity seems to trigger problems, and VR headsets are commonly mentioned. Other users report that they have to plug USB devices in according to a specific order, or that literally only one port on their motherboard works for VR. I had similar issues getting an Oculus Rift to function with USB 3.0, but that was years ago, and I was working with an old X79 board with a third-party, first-generation USB 3.0 chip. Modern motherboards, particularly those built for high-end gaming, should be immune to this kind of risk. Other users have reported onboard audio crashes or the failure of third-party DACs when connected via USB.



Presently, the X570 and B550 are affected. This is an Asrock board, but the problem is not known to be specific to any manufacturer.

One potential solution, quoted by multiple users, is to only use PCIe 3.0 signaling speeds for your graphics card. Motherboards should offer the option to use PCIe 3.0 GPU signaling without shutting off PCIe 4.0 SSD support. Some users believe the problem was actually present in the X470 family while others report having previously owned stable X470 rigs before upgrading to either B550 or X570 and that the problems occurred only once they updated.

Sometimes, when you read through a tech thread, you can get a feel for what’s going on and what might fix it. The advice to drop back to PCIe 3.0 definitely works for some people, but not others. One user claims they only encountered the problem on 500-series boards, another person counters that it started with 400-series boards. Some claim issues date back to launch, others have said the problems only began a few months ago. The PCIe 4.0 fix works for a lot of people, but not for everyone. Whether these users are experiencing unrelated USB issues or have a different variant of this common problem is unknown.

One Reddit user, Darklaunch357, reports that deactivating global c-states in UEFI reduces the disconnect rate from every 10 minutes to roughly every 30. He additionally reports:

Update (2/21): After some monitoring and studies, I’ve found that having PCI Express 4.0 enabled leads to high DPC time on “asmtxhci.sys” (ASMedia xHCI Host Controller Driver) according to LatencyMon, and a distinct mistiming leading to high latencies consistently in the 54 ms mark (with eventual spikes to 240-310 ms) as reported by DS4Windows’ latency measurements on a wired DualShock 4. Such spikes coincide with other general malfunctions such as the keyboard freezing and the sound stuttering.

So far, the ONLY reliable workaround is forcibly disabling PCI Express 4.0 by setting PCIEX16_1 to “GEN 3” in the BIOS. The occasional “DRIVER_POWER_STATE_FAILURE” BSOD that may occur every now and then (with a root cause in ntoskrnl.exe) should also be fixed by that workaround.

This is the best summary of the problem as it is understood to date. I’ve recently built myself a system based on a B550 TUF motherboard from Asus, so I’m going to actually try and replicate some workloads on the rig to better test its behavior.

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