Hey found this thread. Nice results Dnip !!
I haven't seen many cold issues on the Classified. On the runs I made with my D0 I was hitting -130c but ended up at -110c as that seemed to be the sweet spot.
Problem is at -110c to -130c it was drinking a lot of LN2 and about froze my F1 up after a few hours of that.
Makes me wonder how much LN2 the F1 would suck down running a AMD chip at max LN2 temps