please help for encoding quadro m2000

hello
I bought a nvidia quadro m2000 video card. I can not do more than 2 streams at the same time but https://developer.nvidia.com/video-encode-decode-gpu-support-matrixunrestricted here. Am I making mistakes? It’s unrestricted, is not it?

What are you using to encode? What kind of error is displayed?

It is timeout and not connected 3. stream. nvidia quadro m2000 is not unrestricted?

Whyt kind of software are you using?
According to the support matrix, it should be unrestricted.

Now is ok. i am using Tvheadend but incrase cpu too.