Wonder how widespread the issue really is as I've not encountered any USB issues (lots plugged in the rear) so far with gen 4 with USB or audio issues yet anyway
Been following this thread for a while, since it seems like the most active thread on the internet about this one motherboard.
Thought I'd finally register and chime in, since I have had one kind of USB issue with my Dark Hero.
Not external ports, but the internal headers.
In December when I put together my rig, I was going insane about a constant usb disconnect sound in Windows. No connect sound, just disconnect. It might happen ever minute, maybe then 5 minutes later, but regardless it wouldn't stop whatever the interval.
Turns out that in my case the cuplrit was a combination of the Corsair Commander Pro and my HX1000i. I was able to figure that out by using USBLogView, which lists usb events and provides a product id for the device that is constantly disconnecting. Googled the id, and it was a match for the HX1000i.
I had connected my HX1000i to a USB header on the Commander Pro, and as soon as I disconnected it the sound stopped.
Corsair commented on this, and said that some motherboards have "budget" usb controllers that cause these issues. The Dark Hero isn't budget, but who knows about the USB controller...
They also said the Commander Pro isn't a USB hub, it's just USB passthrough. So one issue there can be power.
I was able to reconnect my PSU usb, without further issues, by getting an NZXT internal USB hub that has it's own power cable.
However so far I haven't had issues with external USB ports and connected devices.
I am running a 3080 as well as a gen 4 m.2 ssd, but haven't switched to using gen 3. So that just tells us the issue doesn't necessarily happen even if gen 4 is in use. Here's hoping the issues with external usb devices don't start.
I still do feel like the USB issue I had isn't really a motherboard issue, more of a design issue with the Commander Pro. Perhaps it should be a hub, and provide power to the USB headers.
Perhaps entirely unrelated to the usb issues being discussed, but one kind of usb issue anyway.
On another topic, just noticed they released a stable agesa 1.2.0.0 bios last friday.