Hello there. I must say- Amazing stuff here.
Just had a one question. My Riggs sometimes restarts and when they do, after restart they enter in bios because the USB isn't recognized. I have to manually replug USB and then it boots up again.
I have a AsRock h110 BTC+ board and a 3.0 16gb usb stick
You tried another stick ?
I have that board currently running with 12 cards.
No crash or random restart while mining but once it didnt reboot after I initiated it (from ssh console). I had to send someone to press the reset button.
I use a cheap USB 3.0 stick and I have no issue btw.