Nvidia has officially discontinued support for dedicated Ageia physics processing units (PPUs), and is now shifting attentions to just backing the technology on GeForce products.
An Nvidia technician responded with the following message to a user who emailed customer support with an inquiry on how to get his Ageia working on his computer:
The cases was escalated to me. The current PhysX driver unfortunately does not support Aegia PPU hardware which you're already aware. Support for Aegia PPU ended after the 8.xx.xx driver but like you we've receive other users asking to include support in current PhysX releases. There are discussions to release a stand-along PhysX driver that will support Aegia PPU but that is still in discussion and I'm unable to get any confirmation or schedule. I can certainly update you if this changes or you can check back with us in a couple of months. Unfortunately we don't know anymore at this point.
A look at the recent version of the Nvidia PhysX system software confirms that only GeForce parts are supported for accelerated physics.