Vega 64 from out the box ,without any tune, mining ETH, can draw around 260-280 Watts at the wall ... During dual mining the power draw can go a little bit higher .
If you set the power limit to -30% , you cards power draw at the wall during ETH mining will be around 190 watts , and you are still able to hash around 34MH/s . You can push the power limit lower , let say to -40% , then your cards at the wall going to pull around 160-165 watts , but with -40% power limit you might going to lose a few MH/s hashing speed on ETH .
When you are mining ETN , or XMR , your Vega 64 pulling much less power at the wall .
Also if you have any tune (power limit , overclocking/unervolting) set for ETN mining , thats probably not going to work stable to mine ETH.
So the question is what causing your rig restarts ?
- Its can be your psu , if you did not used any software to reduce the power limit on your cards , you should have 1300-1500 watts high quality PSU, if you are lowered the power limit for your cards, then you should be fine with a 1000 - 1200 watts psu.
- Maybe You find a stable tune for your cards to mine ETN , and you need a different settings to mine ETH
- Im not sure what "Regedit files" you are talking about , would be great if you posting that file so we can see
, im not using any regedit file and im mining just fine with my VEGA's...
If next time you are asking for help , please post your full system spec , that way you might get useful answers , suggestions faster
