Ethereum: Cek Device

List Device

ethminer -G --list-devices

[OPENCL]:
Listing OpenCL devices.
FORMAT: [deviceID] deviceName
[0] Tesla C1060
	CL_DEVICE_TYPE: GPU 
	CL_DEVICE_GLOBAL_MEM_SIZE: 4294770688
	CL_DEVICE_MAX_MEM_ALLOC_SIZE: 1073692672
	CL_DEVICE_MAX_WORK_GROUP_SIZE: 512

Test

ethminer -G -M -v 9

[OPENCL]:Found suitable OpenCL device [Tesla C1060] with 4294770688 bytes of GPU memory
Benchmarking on platform: CL
Preparing DAG for block #0
Warming up...
  ℹ  15:55:35|openclminer0  set work; seed: #00000000, target:  #000000000000
  ℹ  15:55:35|openclminer0  Initialising miner...
[OPENCL]:Using platform: NVIDIA CUDA
[OPENCL]:Using device: Tesla C1060(OpenCL 1.0 CUDA)
[OPENCL]:OpenCL 1.0 is not supported.
[OPENCL]:clEnqueueWriteBuffer(-36)
Trial 1... 0
Trial 2... 0
Trial 3... 0
Trial 4... 0
Trial 5... 0

It means that GPU only supports version 1.0 of OpneCL , which is lower than that necessary to run the miner (kernel), i.e. that card won't run OpenCL.