My first bath all pull 750 Frequency with 16 to 17k Sols. Temp can be in high 50s with full fan or mid 60s on auto fan.

Second batch came with the balanced firmware where you cant adjust. I experimented with changing it manually and found anything over 700 a board would cut out. So im running second bath at 700 all stable and running at 15.5Sols and low 60s temp on auto fan.

Overall i would say they react to heat and fan speed exactly the same as the first batch. But second batch issnt as forgiving above 700 frequency.

L
Power supply is 1 APW3++ two every two z9 minis. Ambient temperature in the data centre is around 68 deg right now.