I am fairly new to mining and I am having a mysterious issue I would love some help on!
I have three rigs, one with 6 MSI RX 480s, one with 5 GIGABYTE RX 480s, and one with 3 assorted GPUs. They have different motherboards and PSUs. They are all running Win10, with AMD Catalyst/Crimson driver 16.60.2911.1011. I am having the same issue with Claymore zcash v12.4, Dual v8.1, and Cyptonote v9.7.
All the cards are mining, except one seems to mine at %20 of what it should! The stranger thing is that WHICH card is doing this whimpy mining switches . . . First it's GPU1, reboot, then it's GPU3, etc~ Also, the issue is inconsistent. It seems to be doing this about %70, but sometimes I'll get lucky and all GPUs will mine %100 for a time.
Would upgrading to driver 17.4 help? Or perhaps a better driver to downgrade to?
I have tried putting a dummy plug into one GPU, and it does not seem to help, though I have not exhausted experimentation with this.
Anyone else experienced this same issue?
Any thoughts/suggestions?
your terminology is fucked up.
never say a gpu mines at 70% or 20%
lets stay with eth what mh do you get?
4mh and 7mh are the common issue number
4mh hook up a monitor to each gpu 1 at a time
7mh is overheating or weak psu.
next don't dual mine hard if you use claymore there are settings for intensity did you use them?
other questions what psu's are you using?
what risers do you use?
and the shifting gpu bug is due to the fact the order of gpus can and do shift with fresh boots.