Mixing cards from different generations will quite often create serious problems. That 710 will not do squat in F@H. I would take it out now.
I just pulled the 710, removed the GPU slot from F@H control and readded it. Something still isn't happy....
12:06:46:WU01:FS01:Connecting to 65.254.110.245:8080
12:06:46:WU01:FS01:Assigned to work server 140.163.4.241
12:06:46:WU01:FS01:Requesting new work unit for slot 01: READY gpu:0:GP102 [GeForce GTX 1080 Ti] 11380 from 140.163.4.241
12:06:46:WU01:FS01:Connecting to 140.163.4.241:8080
12:07:07:WU01:FS01
ownloading 13.15MiB
12:07:07:WU01:FS01
ownload complete
12:07:07:WU01:FS01:Received Unit: id:01 state
OWNLOAD error:NO_ERROR project:11746 run:0 clone:1767 gen:4 core:0x22 unit:0x0000000c8ca304f15e67fb116ff8ae23
12:07:07:WU01:FS01:Starting
12:07:07:ERROR:WU01:FS01:Failed to start core: OpenCL device matching slot 1 not found, try setting 'opencl-index' manually
12:07:08:WU01:FS01:Starting
12:07:08:ERROR:WU01:FS01:Failed to start core: OpenCL device matching slot 1 not found, try setting 'opencl-index' manually
any idea what I should set opencl-index to?