Only USB 2.0 functionality remains on USB 3.1 ports.
Only USB 2.0 functionality remains on USB 3.1 ports.
I have a Gigabyte B650i Aorus (1.0 rev) operating with a 7800x3D. Connecting a USB 3.0/1/2 device to the rear USB C 3.1 port or the front panel USB C port limits its performance to 2.0 speeds. I've tried various solutions: updating BIOS, refreshing chipset/cpu drivers, performing a clean Windows install, adjusting all four USB settings in advanced BIOS options, using USB deview to remove USB devices, and verifying functionality on other systems. HWInfo indicates the problematic ports belong to the same AMD 3.1 host controller. While the drives support higher USB versions, they're connected via a USB 2.0 port. Interestingly, another device linked to the controller is labeled as only compatible with USB 2.0—possibly related to the "Giga-Byte" entry in HWInfo. It seems that connecting a 2.0 USB device to a hub might force all devices to operate at 2.0 speeds. This device appears to be causing the issue, though I'm unsure if removing it resolves the problem. Additionally, when USB 3.x devices are plugged into USB-A ports on other extensible controllers, I only reach "3.0 SuperSpeed" despite device support for 3.1. At least these devices aren't stuck at 2.0. Anyone have insights or experiences with this situation?
Are there any unidentified devices in the Windows Device Manager? The Giga-Byte USB Audio device might be causing performance issues. Another possibility is a faulty USB cable. The Samsung T7 supports USB 3.2 Gen 7, which is 10 Gbps; have you tested other devices? Is this your board? https://www.gigabyte.com/Motherboard/B65...LTRA/sp#sp – I don’t see an AORUS B650i without the ULTRA version. The documentation lists both USB 3.2 Gen 1 and Gen 2 ports; USB 3.2 Gen 1 matches USB 3.0 at 5 Gbps, so ensure you’re using the Gen 2 connections.
See enhanced information via usbtreeview: https://www.uwe-sieber.de/usbtreeview_e.html
Typical cause is connecting with a C to C cable limited to USB2.