Hey guys,
what stats do you run your R9 280X cards?
I currently use core clock 1100 mem clock 600 voltage 0.925V
I try to find a config that has nearly as much hashrate but does save more engery.
And what do you run your 270X? I currently use core clocl 1100 mem clock 1000 voltage 1.1V
Just a few 'rules':
Clock and mem don't do much.
First set voltage back as much as possible, then increase intensity in miners config.
This way you'll get the best hashrate with lowest power possible.
Also notice that heat needs more watts, so fans at a higher fanspeed and cooler GPU's lowers the energy too.
Running ETH only is best for power consumtion, but earnings-wise you'll get more after adding DCR too.
But then you'll need more power, generate more heat etc.
I run ETH only. I know they need to be cool. I run the fans @ 100% all the time and have an additional vent in front of the rig.
I start it like this:
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100
EthDcrMiner64.exe -epool eu1.ethermine.org:4444 -ewal 0xD5B1C0b4a418F512D37645F57c0Cba6D44bAdaA0 -epsw x -wd 0 -esm
I get ~ 21 MHs for each 280X and ~ 15 MHs for the 270X.
How could I improve this?
And btw - clocks influence the hashspeed. But setting a higher clock does need more energy than it will produce hashpeed.
That's why I wanna run them at a relatively low core clock of 1100.
Sure I can set 1250... but they will get like 10% more speed but need 30% more energy.
