hiveos setup with tdx was easy, hardest part was toi understand that there is already wallet ready to use - just switch wallet addres and it works like a charm. seting core/voltage was a little strugle, but somehow i am getting 2x less coins than expected. I am doing right now test on one rig
8x sapphire rx 570
core 1275
voltage 1000 1025 975 1000 975 1000 975 1000
total usage from wall 1150w
~3.1mhs per card, ~25mhs total
accepted shares from miner  99.67%
pool shows no rejected shares

0.3gin in 12h
calculators show like 0.7gin in 12h

I have a feeling that boosting voltage a little or lovering core could help.
it seems that ram does not affect mining hashrate. i have setup ram on 2000mhz

In a vierd way hiveos does not allow me to do that - setting core lower just sends rig to reboot.

Good news i done it 

Now what about OC settings for my Sapphire RX 580 Nitro+ rig?

What should be those settings?

Core Clock (Mhz):
Core State (Index):
Core Voltage (mV):
Memory Clock (Mhz):
Mem State (Index):

I tried all this with no luck... Open CL still doesn't work... tried the v5 image, 16.04 ubuntu, and 18.04 ubuntu installed to a hard drive.

Lyra2z isn't a memory-bound algorithm, so reducing memory you can save some power.

I tried some time ago without success. Yesterday received new files from developer. Can't test it now. You can try
https://drive.google.com/open?id=1Ru-3-OVeqPZ54TVk3mn9HtWlQ2VWmxyE
For v5 if you install it here is the install of the opencl & drivers 
https://drive.google.com/open?id=1fgpPFljaO9053tx8OMpX_Yyaz_OirheO

I switched today ;( i feel so bad, it was crazy but now that's finished ...

becouse its small market and too mutch people promoted miner, like always.

now its worthless.

Its sad, now ETH earns more than 95% off shitcoins, it will be really bad when asics comes into market.

Yes, this is correct -- tdxminer on Ubuntu utilising RX Vega cards.