![Via usb extensible host controller exclamation](https://cdn2.cdnme.se/5447227/9-3/screenshot_1_64e629469606ee7f889a24a7.jpg)
I have a desktop with two 3.1 (gen 2) ports one each of type A and C on an ASMedia host controller. The 3.1 host controller has the latest driver (1.662 - nov 2020) and also the latest firmware (mobo bios is out of date however). I am getting several errors on both USB 3.1 gen 2 ports:Ī yellow exclamation point in device manager, under the controller, stating: The problems come up when connecting a USB mass storage device (Asus enclosure + Samsung M2 NVME) directly to the USB 3.1 gen 2 ports on the motherboard. Windows has stopped this device because it has reported problems. (Code 43) The USB device returned an invalid USB device descriptor. If I uninstall the USB enclosure and restart, the USB drive will occasionally work in the USB / C port, and register transfer speeds of close to 900 MB/S, but it has several issues when it works: (1) extended system freezes plus (2) the following error logged in event viewer: When this happens, the SSD is not usable. The IO operation at logical block address 0x0 for Disk 4 (PDO name: \Device\000000a6) was retried. I also got one BSOD the first time I plugged this thing into the USB/A 3.1 gen 2 port: stop code: system service exception When I am momentarily able to see the SSD, SMART data is showing incorrect information via the USB 3.1 port (it shows temps of 3000*C, incorrect symbols for information and 0 r/w usage and power count). My desktop also has type A and C USB 3.0 ports (Intel USB 3.0 eXtensible controller) and everything works fine, no issues, except that the transfer speed is capped at the USB 3.0 limit of 5 Gbit/s (so real world 440 MB/S). I tried the USB enclosure in a different PC with a USB 3.1 gen 2 port, and it works fine, no errors logged, and it gets close to 1,000 MB/S transfer speed. I also tried plugging the SSD into the PC directly via PCiE and the SSD works fine, no errors, no system freezes.
![via usb extensible host controller exclamation via usb extensible host controller exclamation](https://community.amd.com/sdtpp67534/attachments/sdtpp67534/drivers-and-software-discussions/3411/2/ewewewewew.png)
![via usb extensible host controller exclamation via usb extensible host controller exclamation](https://3.bp.blogspot.com/-G2FQLdKQcdo/W4KllXSmEBI/AAAAAAAAA8k/5AvtCjTqIKoW3rmxKGUgfZzLU6Or3yKTgCLcBGAs/s400/notebook_asus_26.jpg)
#Asmedia usb3.1 extensible host controller error Pc I also tried three different USB 3.2 cables, all same issues (except the USB A cable is worse in terms of I can never see the drive.
![via usb extensible host controller exclamation via usb extensible host controller exclamation](https://news-cdn.softpedia.com/images/news2/VIA-s-Latest-USB-3-0-xHCI-Driver-Now-Ready-for-Download-2.jpg)
I also tried uninstalling the host driver and updating, no change. #Asmedia usb3.1 extensible host controller error driver #Asmedia usb3.1 extensible host controller error Pc.#Asmedia usb3.1 extensible host controller error driver.
![Via usb extensible host controller exclamation](https://cdn2.cdnme.se/5447227/9-3/screenshot_1_64e629469606ee7f889a24a7.jpg)