I have two Sapphire Nitro+ RX 480 OC cards. When only one is inserted into a PCIe slot, I am able to mine ETH with no issues. When both are inserted into PCIe slots, my terminal returns:
"No GPU device with sufficient memory was found. Can't GPU mine. Remove the -G argument."
This happens despite my devices.bat file returning:
Listing OpenCL devices.
FORMAT: [deviceID] deviceName
[0] Ellesmere
CL_DEVICE_TYPE: GPU
CL_DEVICE_GLOBAL_MEM_SIZE: 8589934592
CL_DEVICE_MAX_MEM_ALLOC_SIZE: 4244635648
CL_DEVICE_MAX_WORK_GROUP_SIZE: 256
[1] Ellesmere
CL_DEVICE_TYPE: GPU
CL_DEVICE_GLOBAL_MEM_SIZE: 8589934592
CL_DEVICE_MAX_MEM_ALLOC_SIZE: 4244635648
CL_DEVICE_MAX_WORK_GROUP_SIZE: 256"
My .bat file for Ethminer is:
start cmd /k "cd miner & ethminer -G -F http://eth-eu.dwarfpool.com:80/0x51df06C26B3FA5bb0509015Ef3fC4D815f1f02F2"
Update: Both cards work perfectly with Folding@Home, so it is not a hardware issue. There is something going wrong with my Ethminer execution. Any advice is appreciated!
