Right now if you want in linux undervolting you need to have custom bios with added offset.
Anyway i someone wants my friend is doing custom bioses.
Adding voltage offset which recudes wattage and it works in linux = 0.2 BTC (for each model/brand/memory type, i can do RX400/RX500 gpus)
If anyones is interested email me to
admin@simplemining.net and wirte in subject: Pay Service Adding Offset
Payment only upfront.
I just wanted to avoid them flashing, it means a lot of cards to transfer one after one to a PC with Win, the driver, load the memory producer, make a backup, then upload a new bios and in 3 years hope that I did not lose the bios for possible sale Cards.