I'm putting together a new i7 3770k/Asus P8Z77 rig, so I've been experimenting with a bunch of the new (to me coming from x58 platform) technologies. I've been experimenting with adding an old Nvidia GTS 250 as a dedicated PhysX card to supplement my GTX 560 ti. After some benchmarking, I've discovered that such a configuration produced a non-trivial performance boost.
However, plugging in a second dGPU instantly broke the Lucidlogix software. I'm aware that Lucid MVP doesn't support SLI or Crossfire yet, but, to me, a dedicated PhysX card is a different beast entirely. As I understand it, the Lucid software sits as a middleman between the iGPU and the dGPU delegating tasks to whichever it thinks could perform them most efficiently. I can understand how SLI/Crossfire could throw a wrench in that process. However, a dPhysX card seems to be a communication between the Nvidia devices, and not a communication as to which device is going to handle outputting video. That is to say, it doesn't seem like PhysX should conflict with anything Lucid MVP is doing. In my mind, I see a tiered system like this:
Video processing request --> Lucid MVP: iGPU or dGPU? --> (if dGPU) dGPU processes request, PhysX or Non-PhysX? --> (if PhysX) dPhysX GPU
At least, that how I think it should work.
Currently the software recognizes multiple GPUs and simply shuts off and disables itself. Does anyone know if there's a way to get Lucid functioning with a PhysX card? Perhaps some way of hiding the second card from the MVP software so the Nvidia driver can do what it does and Lucid MVP can continue filtering video processing requests?