H7R1 panic beeps and flashes when connect USB cable

Hi - what does it mean when Windows USB kind of convulses like this and these lights flash?
The Laptop makes the USB recognition sound repeatedly in rapid succession Beep boop beep - beep boop beep - quite fast - over and over while the lights flash (i’m bit color blind so hard for me to describe the colors but looks mostly white or green 7 times then one or two different colors at end then repeat…

Might be an issue with the USB connector/cable, corrupted filesystem or firmware image (for some reason). I’d try a different cable first, and reflashing the firmware next.