Triple monitor with two different cards

Triple monitor with two different cards

My primary card is a GT 440, and my other card is a 9500 GT. I have two
9500 GT's, so I could run SLI if I had a bridge and theoretically get
close to the same performance as one GT 440. The issue is I don't have a
bridge at the moment, so I'm wondering if there is a solution that will
allow me to use the GT 440 and 9500 GT simultaneously. I don't mean for
SLI purposes, but potentially for a triple monitor or using the 9500 GT
for physx.
The steps I took to attempt to achieve is this as follows:
Reboot into safe mode
Remove all drivers via Program Features
Install using 320.49 driver
In safe mode, I can see both the 9500 GT and GT 440 without any yellow
exclamation points. When I boot regularly, 9500 GT has an exclamation
point. It doesn't show up in the physx configuration, and not when I click
detect in screen resolution (I've tried both monitor ports.) At one point
when I removed the 9500 GT device software via Device Manager, windows
installed a WDDM. Also, the existence of the 9500 GT also seemed to allow
me to install geforce experience and physx software, whereas those options
never appeared when the card wasn't installed. Is it possible that my GT
440 simply doesn't support it? The oddity is that in GPU-Z, before I had
the 9500 GT, physx was unchecked. But after installing the driver with
that option checked, it is checked in GPU-Z.
To clarify, I have HDMI and DVI on my GT 440, and a third monitor I want
to plug into the 9500 GT, or enable physx for the 9500 GT.