ASUS ROG CROSSHAIR X670E HERO glitch USB 32 gen 2x2

[feanor_black]

By the way, under Windows 11, I noticed a bug on the ASUS ROG Crosshair X670E Hero motherboard - the essence of the problem is that if you connect an external SSD to the gen 2x2 port, then at intervals
in a few hours, the speed drops critically on all types of drives and nvme and sata to 0 .... 40-55 MB, but when switching drives to tunterbdolt type-с, this glitch disappears, although these ports cut the speed of the external x2000 itself from 2000 to 1000 Mb ..... so the AMD usb 3.2 gen 2x2 lays down all the disks, but the non-native Intel thunderbolt works fine...

[Jiaszzz_ROG]

Hello, @feanor_black 

Could you please clarify if the external SSD currently connected is plugged into the chassis of the PC or into the USB 3.2 Gen 2x2 port on the rear of the motherboard? Have you used any hubs or docks for the connection?
If you try testing other ports, does the issue persist?
Kindly provide the brand and model name of the external SSD, along with the specifications and details as below, for us to better understand the situation.
- the current BIOS version and the images of the setting in BIOS, or whether it is the default
- the brand and model name of the CPU, GPU, DRAM, and PSU currently installed
- the OS version and OS build
- the circumstances and frequency of problem
- contains a video that completely captures the problem's incidence and the surrounding environment

Thank you.

[feanor_black]

I do not use any hubs, there are enough ports on the motherboard.

The problem is observed with any of my two Kingston XS2000 4 TB (SXS2000 / 4000G) if you connect a 2x2 gene to the USB 3.2 port, since my external SSDs are designed for this standard. Initially, the work proceeds normally at a maximum speed of 2000 Mb / s, but after some time, a port glitch seems to occur when linearly copying large files of 1-20 GB in size from an external SSD connected to USB 3.2 gen 2x2 to any of the NVME Samsung 1TB 980 or Samsung 2TB 990 Pro - the speed initially shows a maximum of 5000 mb / s for a few seconds, then the built-in SSD cache ends and the speed drops sharply to 0 and should recover to 1900-2000 MB within a few moments, but this does not happen, it gets stuck at low values ​​(like a regular flash drive) up to 40 MB and copying takes several minutes at this extremely low speed, and even if you cancel copying, wait for some two minutes, then the copy speed is not restored to 2000 MB, even if you no longer use Kingston XS2000 4 TB (SXS2000/4000G), and already copy from Samsung 1TB 980 or Samsung 2TB 990 Pro or even to a SATA disk - that is, in fact, the entire disk subsystem from NVME to SATA falls for some time and this effect can last 2 -5 minutes, during this time all disks work with speed up to 40 MB. That is, if I try to work with Kingston XS2000 4 TB (SXS2000/4000G) in a USB 3.2 gen 2x2 port to work in which it is intended, I will certainly get a temporary glitch in the speed of all disks in the system.
If I install Kingston XS2000 4 TB (SXS2000/4000G) in any other Type-c available on the board (there are three more on the back panel), then I no longer observe such problems and all disks work normally without speed drawdowns for an indefinite time , but any other of the three Type-c do not support the USB 3.2 gen 2x2 standard and the speed is initially halved to 1000 MB/s.

[Jiaszzz_ROG]

Hello, @feanor_black 

Could you please provide more detailed information about the BIOS settings, version, and the requested information mentioned above?
Kindly confirm the software name and version you used to record transmission speeds and share relevant screenshots of the test results for us to further validate the situation.

Thank you.

[feanor_black]

1) The BIOS version does not play a role, I observed this from version 922 to 1516
2) I worked without using the 2x2 gene for several days and I get the same effect in the other three type-c ports!
3) Any explorer for copying, even the one that is built into Windows, even the total commander, even the altap salamander.
4) It’s not really possible to catch the phenomenon right away, because initially after loading everything works at full speed, but at some point during active work (saving sound or video, for example) in adobe (audience or aftereffect), there is an instant drop in the speed of ALL without disabling the disk devices, including both nvme and sata - up to a speed of 0-40 MB and restoration of the speed of work, you can wait 3-5 minutes, which is not normal, because as with any linear operations, SSD controllers switch very quickly when filling their own cache - in milliseconds, not minutes to restore a very high speed.

4) So far, I haven’t found anything better, how to disable support for old usb versions in the BIOS itself, which seems to have given some positive effect, since I caught the subsidence of the speed of all media only 1 time per day and it lasted a couple of 5-10 seconds, not minutes. It looks like you need to dig in this direction.
Also in the properties of the drivers for usb controllers - I forbade a temporary power outage.

I can’t catch a glitch specifically on order to record a screenshot or video, I observe it while working with Adobe Audition 2023, when, for example, the sound is saved (the cached recording goes to the final format) and I notice the save time, which is usually lasts 2-5 seconds, and with a glitch it becomes around 1-1.30 minutes. After such a long save, I go to the explorer and copy large files (several gigabytes) from the NWME disk to any of the other disks and see a speed of 0-40 MB for 1-3 minutes. Then, of course, everything settles down, and the speed is restored to normal. With external media turned off, there is no such problem in principle.
For comparison, I have a laptop gigabyte AERO 17 HDR on the Intel platform, to which I connect the same media via usb-c, but the speed of the disk system does not sag either when saving files or during banal copying - in any operating mode, the speed is stable and corresponds to that what's in the specifications.

We will test further, such a rarely perceptible, but constant and unpleasant glitch, I would like to fix it anyway.

[feanor_black]

After several days of observation at work, I can conclude that if you go into the BIOS and disable support for old standards in the USB settings, the result becomes obvious. Now there are no long-term sags in the performance of the disk subsystem, the maximum that I caught up to 5-10 seconds and then automatically the performance of the SSD is restored to a normal level. With the settings, controllers in the BIOS by default - the performance drop could last for several minutes (1-3 minutes for sure)!

[Jiaszzz_ROG]

Hello, @feanor_black 

According to your latest update, have you observed a significant reduction in the duration of transmission speed drops after adjusting the BIOS settings?
Could you provide details about the specific BIOS settings you modified?
Have you managed to eliminate or reduce the issues described?
As per the user manual of the ROG CROSSHAIR X670E HERO, there is a USB 3.2 Gen 2x2 port on both the front and rear sides.

We recommend performing cross-testing to check the functionality of these ports and monitoring their performance for further observations.

Thank you.