This Mainboard is so Fucking instable and has the most bugs ever. With FW 25a, as soon as i enable "mining mode" booting from USB is not possible anymore. (USB Stick disappear)
I was not able to find a Version which runs smooth with HIVEOS, i ripped that boards out of my Rigs and replaced it with H81pro BTC.
New FW 25d available.
When enable Mining Mode here same thing happen no possible to booting from USB but you can keep mining mode disable and just enable all things to mining fine, if you have time just give it one more chance.