Thanks for the advice
In my experience these cards draw more power the hotter they are.
Interesting, I've actually let them run hotter now (temp target set at 80 degrees celsius). Can't remember my reasoning, I think I was experimenting with getting a higher hashrate and figured that hotter meant less fan activity equals less power consumption... But I'm new to all this so just experimenting
Maybe should try with temp target at 70 again and see the results.
It does run a whole lot quieter now which could be beneficial if I have to drop this thing in my bedroom! It's currently in the kitchen, my housemate isn't complaining yet but hmm....
draw 950W from wall...
90% efficient from a 80 gold supply at 80% load makes for a...
950 x .9 = 855W 12V power
(855-100W)/3 ~250W per card.
Seems right to me
My PSU is a Corsair AX1200i which is supposed to be ~92% efficient at 100% usage, or 90% with a different voltage input (not sure which of the two im feeding it) - regardless that seems about right then in your equation.
When I got home from work just now the power strip read 1000w so I'm still working out what the actual usage is. I've now also underclocked the CPU from 2.8mhz to 2.0mhz, see if that does anything.
What kH/s are You getting by doing it? Well. maybe it needed more power to "kick" at start? And after some hours they are becoming stable?
Each card is averaging around ~732-738 kh/s now, which seems a decent result. Will keep trying to squeeze more out of it I guess!