Also if they are just nvidia based cards try adding -nvidia to your bat.
Seeing your startup command line would help...
Thanks for the reply.
RAM is 12.GB, I added -nvidia unfortunately no luck:
REM Example bat file for starting PhoenixMiner.exe to mine ETH
REM
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100
REM IMPORTANT: Replace the ETH address with your own ETH wallet address in the -wal option (Rig002 is the name of the rig)
PhoenixMiner.exe -pool ssl://eu1.ethermine.org:5555 -pool2 ssl://us1.ethermine.org:5555 -wal XXXX.Rig002 - nvidia
pause
Thanks so much.