I have a x12Ultra just out of the box (older model 1/2021), running the latest BIOS, running the latest HiveOS. The fans constantly cycle from 3% to 25% to 50% to 75% to 100% (approx. %), staying 10 seconds at each speed. Interesting that HiveOS displays 12 Fans! Everything else is working exactly as expected, mining as expected, HiveOS recognizes the case and I can configure the case fans from HiveOS.
Any ideas community?