I recently installed a USB 3.0-to-PCIe adapter card. Windows 8.1 64-bit (Update 1) recognized the adapter and installed its native USB 3.0 driver stack (a Renesas USB 3.0 eXtensible Host Controller and a USB Root Hub xHCI.)
The adapter has two USB 3.0 ports that are occupied by bus-powered portable external hard drives. Both external hard drives are recognized by Windows and both drives are working properly.
Every now and then and for no apparent reason, Device Manager reports that "The SuperSpeed link to the USB device keeps going to an error state Compliance." Nevertheless, both my external hard drives continue to work properly.
According to this article from the Windows USB Core Team Blog [Problem Descriptions for USB Devices and Hubs in Device Manager] the message in Device Manager means that my USB 3.0 adapter card fails to enumerate successfully. That makes no sense because the USB 3.0 hub and its controller are in Device Manager with no problems and both attached portable hard drives work properly.
The USB Core Team refers users to this article of possible solutions [What to Try When Your USB Device is an "Unknown Device"], none of which work or are even relevant.
Since my USB 3.0 adapter works properly, I'm tempted to simply ignore the message in Device Manager. Has anyone diagnosed this issue and found a solution?
The adapter has two USB 3.0 ports that are occupied by bus-powered portable external hard drives. Both external hard drives are recognized by Windows and both drives are working properly.
Every now and then and for no apparent reason, Device Manager reports that "The SuperSpeed link to the USB device keeps going to an error state Compliance." Nevertheless, both my external hard drives continue to work properly.
According to this article from the Windows USB Core Team Blog [Problem Descriptions for USB Devices and Hubs in Device Manager] the message in Device Manager means that my USB 3.0 adapter card fails to enumerate successfully. That makes no sense because the USB 3.0 hub and its controller are in Device Manager with no problems and both attached portable hard drives work properly.
The USB Core Team refers users to this article of possible solutions [What to Try When Your USB Device is an "Unknown Device"], none of which work or are even relevant.
Since my USB 3.0 adapter works properly, I'm tempted to simply ignore the message in Device Manager. Has anyone diagnosed this issue and found a solution?
My Computer
System One
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- OS
- Windows 8