Hi
@CaseySJ sorry to bother again... I did the CMOS reset with no result, and later I tried to flash the SPI chip with the backup but it did not read the chip. I recently move to another house, and I cant remember any significant to happen to the PC case. I just stoped using the interface for two months, aprox. Do you think it's related to the SPI chip flashing? Or maybe something I did wrong trying to activate the thunderbolt bus after doing a fresh install of Big Sur MacOS? Or this seems to be a hardware problem only?
I checked the motherboard and nothing seems lost or missing with the thunderbolt chips, I also noticed the thunderbolt port can connect any usb type c, it just doesnt recognize the thunderbolt devices .
On other hand, I managed to get VRS8 connected with the PCI card included with the package, where you can connect the VRS8 with an hdmi cable to older Mac systems or Windows (Curiously i can see the vrs8 like a thuderbolt device in audio midi setup) . I also enabled the appleVTD, i can confrim this was the solution to the audio input problem where the system doesn't get any signal from inputs, and only monitor the signal.
It be wise contact with Gigabyte support to check the motherboard?