Hi guys,
I had the same issues that you guys mentioned. I assumed maybe like the rest i also had hardware issues but apparently the issue was resolved by doing a reset or a power cycle. Sometimes the temps get high after power cycle which didnt make any sense as the room temp and when previously it was running smoothly were low. It didnt look like a hardware problem but a software problem.
Sometimes i had just 1 X and sometimes one of the entire boards showed xxxx. Checked the wires .. Did a power cycle which helped once. Then at the next power cycle it just was full of errors. Now after a factory reset its working fine and temps are 80 or below. Hopefully it will stay the same. I was mining before on siamining but have changed to luxor. Works good so far. Hopefully u get to fix urs.
P.S. I had factory reset it a couple of times.