Trialing New Compiler (Rig has 3 GPUs only 2 usable)

Hi all,

Testing the new compiler on a few builds 2.79.4 and others also 2.80.5
any build with the new compiler I have lost 1 GPU.

I cannot get my GTX 570 to show up in blender user prefs --> system
Cycles compute device CUDA
GTX 780ti
GTX 760
AMD Ryzen 5 1600 six core

The normal build of blender has
GTX 780ti
GTX 760
GTX 570

is there a blender limitation on how many CUDA devices can be used.
I want to see my rig render using CPU and GPU…
thanks
shaun

EDIT:I just removed the gtx 570 and threw another GTX 760 in the rig
it detects the CUDA Card.Maybe the newer compiler doesnt like GTX5xx

I am possibly going to buy a GTX 680 4GB tomorrow. Knowing full well that the 7xx cards work, and 5xx cards not. Does anyone have a GTX 6xx card and want to try the blender downloads with NEW COMPILER
https://builder.blender.org/download/
Thanks

Support for 4xx/5xx cards has been removed for current builds and releases going forward. This is due to the new CUDA SDK dropping support, not due to the C/C++ compiler being used for some of the build bot builds.

Support for 6xx/7xx cards will remain for the time being.