AMD Investigating USB Issues in 500-Series Motherboards


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AMD has launched an investigation into reports of USB troubles in its 500-series motherboards and is asking impacted end users to audio off on the trouble. It is also invited users to make contact with it directly by opening a assist ticket. The firm claims it’s engaged in root result in analysis and that some customers who put up details in the correct Reddit thread may possibly be contacted later to provide extra details.

The trouble with opportunity X570 and B550 board security was indirectly lifted by PowerGPU previously this month. We described on the PowerGPU problem and the reality that described RMA premiums from other stores do not match the failure quantities PowerGPU experienced noticed. The business has because taken down its preliminary tweet and suggests it is doing the job with AMD to solve what could have caused its challenges. But when there is no community proof that AMD CPUs are failing, AMD X570 and B550 motherboards both of those appear to be as even though they may perhaps have some problematic tendencies. AMD’s Reddit put up states:

AMD is aware of studies that a compact amount of users are suffering from intermittent USB connectivity problems with 500-sequence chipsets. We have analyzed the result in and at this time would like to ask the community for assistance with a compact range of more components configurations In the following handful of days, some r / Amd customers may possibly be contacted directly by an AMD agent (u / AMDOfficial) via Reddit’s PM system with a ask for for extra information.

Stories in the requisite thread are assorted as to the trigger and prospective remedies. A number of people are reporting that weighty USB bus exercise would seem to bring about complications, and VR headsets are typically talked about. Other end users report that they have to plug USB gadgets in according to a particular buy, or that practically only just one port on their motherboard operates for VR. I experienced equivalent issues getting an Oculus Rift to operate with USB three., but that was decades back, and I was operating with an old X79 board with a 3rd-occasion, 1st-era USB 3. chip. Modern-day motherboards, particularly those developed for superior-conclude gaming, should be immune to this type of chance. Other customers have claimed onboard audio crashes or the failure of third-bash DACs when connected by means of USB.

Presently, the X570 and B550 are affected. This is an Asrock board, but the challenge is not acknowledged to be distinct to any producer.

A single likely answer, quoted by various customers, is to only use PCIe three. signaling speeds for your graphics card. Motherboards ought to supply the option to use PCIe 3. GPU signaling without shutting off PCIe four. SSD assistance. Some users imagine the dilemma was essentially existing in the X470 family members when many others report having beforehand owned secure X470 rigs just before upgrading to possibly B550 or X570 and that the problems happened only at the time they current.

Sometimes, when you go through as a result of a tech thread, you can get a really feel for what’s going on and what may well resolve it. The tips to fall back to PCIe three. undoubtedly is effective for some folks, but not many others. One person statements they only encountered the problem on 500-series boards, an additional individual counters that it began with 400-collection boards. Some claim problems day back to start, many others have mentioned the issues only began a couple of months ago. The PCIe four. deal with works for a lot of people today, but not for every person. No matter whether these end users are encountering unrelated USB issues or have a different variant of this widespread difficulty is unidentified.

One particular Reddit user, Darklaunch357, studies that deactivating world c-states in UEFI lessens the disconnect rate from each and every 10 minutes to around each individual 30. He on top of that reports:

Update (two/21): Right after some monitoring and scientific tests, I’ve located that owning PCI Specific four. enabled sales opportunities to significant DPC time on “asmtxhci.sys” (ASMedia xHCI Host Controller Driver) in accordance to LatencyMon, and a distinct mistiming foremost to superior latencies regularly in the 54 ms mark (with eventual spikes to 240-310 ms) as claimed by DS4Windows’ latency measurements on a wired DualShock 4. These types of spikes coincide with other general malfunctions such as the keyboard freezing and the sound stuttering.

So much, the ONLY trusted workaround is forcibly disabling PCI Express four. by environment PCIEX16_one to “GEN 3” in the BIOS. The occasional “DRIVER_Energy_Point out_FAILURE” BSOD that might arise just about every now and then (with a root result in in ntoskrnl.exe) must also be fixed by that workaround.

This is the very best summary of the trouble as it is comprehended to date. I have not long ago built myself a system based on a B550 TUF motherboard from Asus, so I’m likely to truly try out and replicate some workloads on the rig to greater take a look at its conduct.

If you have troubles, seem off underneath, particularly if you can share a timeline on when they begun.

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