I lowered it to 540 freq and around .65 core voltage, went well for 2 days. Then the same thing resurfaced.
Multiple errors, but now the hashrate goes even lower ex. 1.5.
It might have been something with the assembly of the ML by the distributor as the large heatsink with fan came loose (heat?) and I had the put it back.
It was already average assembled from start (fan and heatsink were pretty much off target by 0.5cm

)
I can't even let it run for 30 minutes now on low freq and voltage or the glue/paste starts to go soft and as I ran the thing horizontal the fan and heatsink would just fall down.
I'm not much of a hardware guy so I'm trying to explain the things as I see them

Thank you!
I don'n know, sounds strange, glue/paste should go soft and starts to peel off at temps when your ML would be dead, at least twice, and it looks like it is alive and hashing with some solvable problems. Maybe you should send it back for repair, it doesn't sounds like something unrepairable but 0.5 cm off target for something 2,5 cm long was red flag from start... Did my best, good luck!