Running it at 325 now, I'll give it some time to see what happens.
If I have another power supply (630W), would it be stupid and/or dangerous to connect 1 PSU to each chain? And if that was possible, would that use more power or would each PSU still only use what it needed for each board?
it could work fine.
give me make and model and I will research it.
as for more power no the same or a little less.
It is late and I am going to crash now. but give me model / make of second psu. I will have an answer in the morning.