Hi @paulmmc Hello, you have a problem with the 12C HID device. Then install the driver from the package: 01.Chipset \ Intel_SerialIO_30.100.2419.23-mtl-s-v1 \ 30.100.2419.23-mtl-s-v1 Start the: SetupSerialIO.exe Also read the "readme.txt" and the PDF: "Intel(R) Serial IO - Bring Up Guide and release note Rev0p8.pdf" in that folder bye Fishtown
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