Dude with the coolant at -30.......the chiller can almost keep up with the heat from 4.5GHz/1.5v with the GPU loop in there.
In a 1/2 hour @ idle the coolant temp has risen less than 1/2 a degree. .....in fact I'm not even sure it has risen.....ahhhh I don't think it's gone up. It's hard to tell looking @ this regular outdoor thermometer.
Yessssssssss, I am so happy. 4.5GHz sub-zero racing. Everything seems better sub-zero.

Gonna let it idle for another hour just to be sure.