It is important to connect both the usb and network when setting it up as the USB connection is used for flashing the OS onto Xavier whereas the network connection is needed for building the other Nvidia components.By default it runs with only 4 cores enabled and the other 4 need to be enabled.Note that the device gets hot and the fan does not kick in so if you added the m2 pci storage then get a small fan to cool the device as the heat will kill the m2 module.  I have not yet been able to find a good camera system that supports the xavier and they are all expensive.