I have a T21 which was working perfectly on all 3 hashboards. I had to power down for maintenance (not on the miner itself) however when I powered back up, this miner now has missing ASICS as follows:

[2025/04/21 19:02:27] WARN: chain#1 - 107 of 108 chips detected, attempt 1
[2025/04/21 19:02:27] WARN: chain#2 - 15 of 108 chips detected, attempt 1
[2025/04/21 19:02:27] WARN: chain#3 - 0 of 108 chips detected, attempt 1

I'm no stranger to mining, or missing chips (at least on my Bitmain junk) however I find it strange this was working perfectly then has such an issue after a simple power recycle.

So my question, is it possible this could be a control board issue rather than dead hashboards?