Alright actual question here. Might be worth another thread.
I restarted my rig. 4/6 Vega 64's are hashing at 1900+ still. 2 are not. No matter what I do with the HBCC slider for those cards, enable, disable, I cannot get the hash rate back. The card is otherwise clocked correctly, I get the same ETH hash rate as I would expect.
Any tips? Full clean re-install of AMD drivers? What I wouldn't do for some non-flashy software that would let you control these settings.
I think adding extra 8gb of RAM will make things easier.
Also I think in fact your cards aren't running 1000mhz gpu clock whatever monitoring software says. It is much higher. You wouldn't get 1900+h/s with only 1000mhz gpu clock.
And actual gpu voltage also is not 950mV