Question for anyone pushing over 1950h/s with the Vega 64s. How stable are your card clocks in Wattman while.mining? Also could bouncing clocks damage the card/reduce life of card. I feel that if the clocks hold steady mining when using standard settings then it should be the same when over/underclock get but this might not be true.
The best settings I've found to keep stable clocks are 1100/1100 core 1025 mem -10% power temp 62 max. Reducing power any more causes bouncing clocks as does increasing mem. No Bois mod cards using 215w each.
On a different point I've found that setting core clocks manually at 1100/1100 or even 1200/1200 let's the cards run much cooler than using the % slider to a similar level.
My cards (both vega 64 and vega 56 flashed with vega64 bios) are running perfectly stable 1408/1150@875mV for a weeks. Clocks aren't floating at all. Power usage ~150watt for Vega56 and ~160watt for Vega64. Speed is 2kh/s for Vega 56 and 2.07kh/s for Vega64. I'm using 23aug drivers and softpowerplay reg mod + overdriveNtool.