Hi how can i select to mine with all gpu's
easy
just do a
barrel roll .bat file

start "GPU 0" Sia-CUDA-Miner.exe -d 0
start "GPU 1" Sia-CUDA-Miner.exe -d 1
start "GPU 2" Sia-CUDA-Miner.exe -d 2
start "GPU 3" Sia-CUDA-Miner.exe -d 3
start "GPU 4" Sia-CUDA-Miner.exe -d 4