Has anybody got R9 390 to hash more that 30 mhs?
I am planning to add to more GPU to my rig which already has (4 x R9 390 )... based on the information I got from forum and other source... I believe HD 7990 ( overclock to 40 ) & R9 290X ( 32 ) has better performance... any thoughts.
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I'm also thinking about buying 4 of them and I have 1500 W enermax platimax PSU.
Will this be enough?
And should I use powered risers on Asrock H81 pro btc board or non-powered?
Thanks.
Downvolt to 1.108v
Core: 1100
Memory: 150
Doing ~31MH/s (more like 30.7)
Draw from wall is around 200W (the entire draw is 270W including all other components, this is currently a rig with this single card)
EDIT: ethminer config
(This one is on the old ethminer that accurately shows my hash rate)
--gpu-mining-buffers 1 --gpu-batch-size 22 --gpu-workgroup-size 256 --farm-recheck 202 -t 1
(The latest one from the cpp
--farm-recheck 202 -F http://192.168.1.15:8080/eth1 -G --cl-local-work 256 --cl-global-work 8192