strange request

I have access to a vega frontier edition water cooled
it has 16gb of hbm2
the card looks great - but thats about it. LOL.

to get it to mine i have to use the amd driver 19.7.1 and do the "is gaming mode driver" registry hack.
then apply some trick timings using amdmemtweakxl ive got it to 45 megahash
with core at 1050 and mem at 1060

but B mode will not enable
the 45 megahash is using A mode or the competition's miner

you cannot use a modern driver with this card because it forces professional creator  mode and you lose ALL
control of clocks etc. it defaults to high core clock and low hbm clock exactly what you DONT want for mining

ive not tried linux but i dont think its any better

can i force B mode on amd driver 19.7.1 or is it a lost cause??
many thanks