Use old card for physx?

[obriza]

Ive just upgraded from 2x5770s xfire to a 6950. I'm just thinking seeing i now have these 5770s sitting around, would it be worth making one dedicated physx? Or both if possible? If so, how would i go about setting this up?
Thanks for the help in advance

 

[JackNaylorPE]

ATI can't do PhysX .... like CUDA, PhysX is a nVidia only thing

And yes, you can use an NVidia card for the PhysX in a Win7 system that uses an ATI card for the main. It requires a biut of a driver hack to make work.

http://www.tomshardware.com/news/nvidia-ATI-physx-patch-gpu,8786.html