Why are my USB devices showing under the AMD controller instead of Nvidia?
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MapleOrbit42
I normally connect my controller to certain USB ports because I believed they offered lower latency. Recently, every device I plug into those ports appears under the AMD USB controller in USBTreeView instead of the Nvidia controller. I checked the other ports and updated the USB drivers, but I still cannot find any ports that appear to use Nvidia. Is this a hardware, driver, or USBTreeView issue, and does the controller assignment actually affect latency?
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The term “Nvidia USB port” is probably mixing up the graphics card with the motherboard’s USB controllers. USB ports are normally managed by the motherboard chipset or a separate USB controller, while Nvidia generally provides the GPU. USBTreeView is showing which controller owns each port, not necessarily a performance mode. To identify the ports accurately, you would need to provide the motherboard model and explain which physical ports you mean.
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There usually is no meaningful latency advantage from plugging a controller into a particular USB controller. Unless a port is overloaded, malfunctioning, or sharing bandwidth with another device, the difference should be negligible. The controller assignment may have changed after a BIOS reset, driver update, or hardware change, but that does not automatically indicate a problem. Check the motherboard manual and BIOS settings, and reinstall the chipset and USB drivers from the motherboard manufacturer rather than relying only on generic updates.
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MapleOrbit42: I’m not completely sure about the latency claim either—I originally followed a tuning suggestion and noticed the setup felt better. I’ll check the motherboard documentation and chipset drivers instead.