Adding 9800Gt to HD6950 system for folding

[cactus]

I have an old 9800GT sitting around and was wondering if there is a way to get it working enough to use it for folding. I tried before when I had dual HD4850s to use it for PhysX but the drives did not play together nicely, is this still the case? TIA

 

[Patriot]

if your on 7 the drivers play nice...