Bitcoin Forum

Hey there,

I'm here to ask for your kind help, please. I have some 6 GPU rigs with 3070 cards, some of them with different brands some of them are the same ones.
ETH mining, ethermine pool, phoenixminer.

Everything works quite well for a day or two. (like 13-15.000shares for the whole rig, 3-4000/GPU. )
Then suddenly some GPUs in separate rig starts to get incorrect shares...
A ratio like 4-5000 / 300 invalid for one or two cards in the same rig the other ones working well.

Up-to-date Windows 10 pro on every, with the latest Phoenixminer 5.5c.

GPU's undervolted with afterburner (46-54% - depends on the actual GPU) + memory oc (950-1000).
Monitoring with HWinfo, GPU-D.

Tried 'solutions' what I have found on this forum but still not working:
- Revert the GPU to stock settings, not worked still invalid shares...
- Restarting the whole rig, working for 1-2 days then some cards starting to get invalid shares again.
- After a restart, delay the afterburner until Phoenixminer boots up well.
- Changing the risers in the whole rig...

Should I change to a different mining software & pool? or any other ideas, please?

I'm just getting confused have no idea what to do but gonna stay on windows. :(


At least, a question for the end just how can I identify which GPU is which in the Phoenixminer/HWinfo as it is not in the same order as on the motherboards (in that case I have 6 GPU-s in the same rig).

Thanks for your help in advance!

Try T-Rex miner  ;)

Hmm I guess something is off with latest phoenix miner, the result is near same thing on my rigs and I switch to NBminer on one of my rigs and that works better than phoenix miner in terms of accepted shares and invalid shares, change your miner pal

Thanks a lot guys!
I will give it a try to both of them.

Should I change the pool too? Or stick with the ethermine pool? 

No pool problem. Miner problem  ;)

So you have six rigs loaded with nvidia 3070 cards.

why are you running windows?

If they are only miners run linux.

 if miner only is linux better??

Yup, I see what you mean... But I'm not a fan of Linux as I'm not a noobie with that command line things.

I'm coming from Mac OS which's my daily worker. Windows is just easy to use for me & afterburner as I know a lot of them from my childhood.

Could be the location, change the location of the mining pool to the nearest one to your country and also make sure you have stable strong data, if nothing works give other miners a try and see if the issue is gone or not, download Minerstat, Bminer, NBminer, Nicehash

I got this share issues too but I was able to try out other different pool locations and I see one that's better than the one I was using, play around with the pool locations, try playing around with different locations on pool to see if there is any performance