Hi heres my MULTI card AMD Veriblock miner for Windows and Linux
use the syntax
veriblock2.exe -u V8wB8DP56Cs9VrwyrXVsLTQ3e5Ngj5 -o testnet-pool-gpu.veriblock.org:8501 -d 0,1,2,3
ive included a bat file you can edit to get going.
Clone the git
git clone --single-branch -b AMDVERSION https://github.com/monkins1010/nodecore-pow-AMD-cuda-miner.git
cd into the directory
then i personally do this
screen -S Veriminer ./run
run is a script that auto restarts incase of connection interruption.