for it you need to :
1-vega 56 graphic card 
2-And you can flash the BIOS 64
3-driver Radeon™ Software Adrenalin Edition 18.6.1  https://www.amd.com/en/support/kb/release-notes/rn-rad-win-18-6-1
4-best software miner for vega     ....   like  srbminer 1.9.3 or another software

my config for overclock withe OverdriveNTool is :

Name=vega56
GPU_P0=852;800
GPU_P1=991;900
GPU_P2=1084;950
GPU_P3=1138;1000
GPU_P4=1200;1050
GPU_P5=1401;1100
GPU_P6=1200;830
GPU_P7=1540;875
Mem_P0=167;800
Mem_P1=500;800
Mem_P2=800;950
Mem_P3=1100;870
Fan_Min=3000
Fan_Max=4900
Fan_Target=75
Fan_Acoustic=2400
Power_Temp=85
Power_Target=0




best config for sbrminer 1.9.3 is :

SRBMiner-CN.exe--apienable --ccryptonighttype normalv4 --cgpuid 2,1,0 --cgpuworksize 16,16,16 --cgpuintensity 124,124,124 --cgputhreads 2,2,2 --cgputweakprofile 10,10,10 --cpool pool.supportxmr.com:7777 --cwallet 85kYDtY6e6YNbXjVWUF3UtjVrbenKsCzKMZUUcmZJcp2aUcPK1jPQ7rdgNEdSSeDFxCJkwBuofYWQ5u oq9paQiuK5cehPwU --cpassword donate --minrigspeed 5300--rebootscriptminrigspeed reboot-windows.bat --forcedshutdown --resetvega



I was able to increase the hashrate to 2162 hash on each card .
I couldn't be selfish, so I shared these settings,
So that anyone who might be just like me, hoping for income just from this mining system, can make the optimally .

Power will be only 200 watts per card, which is good.

I am in a country where talents are suppressed and fools are in power. Yes Iran


view  srbminer :
https://imgur.com/BIvoJcc

If you are satisfied with my config ....
don't forget donate :

btc : 3MeGtXxoqHxxoF3RcS5H92zmgb5z2E23YR
xmr : 85kYDtY6e6YNbXjVWUF3UtjVrbenKsCzKMZUUcmZJcp2aUcPK1jPQ7rdgNEdSSeDFxCJkwBuofYWQ5u oq9paQiuK5cehPwU
neo : AQWvghEraTVQTTEmccYGcRDaZ2BeUeQ5QY