I thought so as well but after spending 3-4 coffees digging around, i found this command…
atitool -vddcr_hbm=1.3
Keep in mind that you have to specify to which cards you want to apply this to… i only have 1 vega on that rig so that’s fine You can even change the 1.3 to 1.35 which is the stock vega 64 voltage… Right now i have it at 1.3v running 1060mhz stable as a rock ^^
Btw for ergo mining here’s a command that unlocks your power limit…(245w is the max you can go)
yes | rocm-smi -d 0 --setpoweroverdrive 245
Oh and in case you missed it, Team Red Miner version 0.8.6 has a bug with vega cards… I got worried that my vega got degraded or something, downgrade to version 0.8.5…