please advice what wrong
4 cards, Gpu 3  - Vega 64 1450/1050 Mhz Adrenaline 18.5.1
sorry, can't attach a picture,
https://cdn1.savepice.ru/uploads/2018/12/11/6037d421607d9c2a50ec15254700c582-full.jpg

gpu_threads_conf : [
   // gpu: gfx900  compute units: 64
  // memory:4024|4048|8048 MiB (used per thread|max per alloc|total free)
  { "index" : 3,
    "intensity" : 2008, "worksize" : 8,
    "affine_to_cpu" : false, "strided_index" : 3, "mem_chunk" : 8,
    "unroll" : 8, "comp_mode" : false, "interleave" : 40
  },
  // gpu: gfx900  compute units: 64
  // memory:4024|4048|8048 MiB (used per thread|max per alloc|total free)
  { "index" : 3,
    "intensity" : 2008, "worksize" : 8,
    "affine_to_cpu" : false, "strided_index" : 3, "mem_chunk" : 8,
    "unroll" : 8, "comp_mode" : false, "interleave" : 40
  },

],
auto_tune : 0,
platform_index : 0,

hashrate is 0