Just to add to the original instructions, it worked fine for one rig, but the other wouldnt work. Through troubleshooting, narrowed down to one card. Replaced that card (kept riser, cable) and it still didnt boot. So replaced the USB cable from the pcie 1x card, and it then worked.
Don’t assume that it just doesn’t work. Could be any component and taking the time to eliminate probable causes still applies here.
Any way that we can get link to the beta bios directly from AsRock? Hesitate to get a bios from an unknown party…
Many thanks to @ihg70 for posting this work around.
And lastly, I use these clips from 3D Printed Parts for Crypto Miners door honeybadgermining op Etsy which work great for the h110.