thanks a lot for your reply.
I will try the gpu hardware test...
If I'll continue to have issues seems there is no way to solve it properly?
If it's hardware, you can replace it once you know which part if faulty. If it's a software driver issue, you can ask NVIDIA to step in, find more users affected and ask them to contact NVIDIA, too, and wait until it's fixed.
Many of us (end users) had to wait for several months until the MSI fix became available by a third party and NVIDIA hasn't solved the problem (in the driver). I can only assume that NVIDIA doesn't want people to use 3 or 4 consumer-labeled GPUs for work when its high end products make lots more profit, but not every market can afford the high price tag of Quadros.
As a consequence of NVIDIA's practice, I've since built a second workstation using AMD's Vega Frontier Edition GPUs, to diversify hardware and software solutions (see OpenCL software, in place of CUDA) and I've stopped buying CUDA-only software. It's a loss-loss scenario, as NVIDIA loses sales and I loose in potential performance, but this is a well-known consequence of monopolistic behavior.