I think your problem is related to loose heatsink and I think you will need to find that chip to reattached the heatsink.
But if you don't have some tools to reattached those heatsinks follow this guide below to refresh your miner and hashboard and it might also solve your overheating issue on some chips.
Here's my guide
https://bitcointalk.org/index.php?topic=5367989.msg58929271#msg58929271I tried aging using FMS once before, but how long does that procedure last? It was quick, is that normal?
Maybe I should use the command [{"command":"ascset", "parameter":"0,aging-set,1"}] instead of clicking on aging?
Thank you for pointing out a potential issue with the heatsink; if aging does not work, I might try to reattached the heatsink, but I’ve never done such a repair before.
Thank you for your time