2nd card not seen.

[weird_dave]

I've just upgraded from my old 8800 GTS to a GTX 260 and figured I could use the old card for PhysX.
I've just put the card in and the system isn't seeing it at all. I even tried 'scan for hardware changes' but nothing happened. The power cable is in, the gfx fan is spinning happily.
mobo is a p5ne-sli, 850W psu.
I can't spot anything in the bios either.

Any ideas?

 

[kylew]

Have you uninstalled the drivers first? Also, are there any options in the bios regarding the second PCI-E slot? It might be disabled or something?

 

[PermaBanned]

You have used the bridge, right?

 

[weird_dave]

Removing drivers didn't help. No idea if there are any bios settings for the 2nd slot, couldn't spot anything.

I'm not using the bridge since I'm not doing Sli.

Device manager doesn't see it at all.

 

[coupe69]

You need to install the latest nvidia drivers for your GTX 260 which can be found here once you've restarted you should be able to see both cards in device manager, and you should be able to pick your 8800GT to use as your physX card like in the image below

 

[weird_dave]

Having just read the mobo manual, there's a small card on the mobo which can be turned over to enable 2 gfx cards..... I guess I'll be trying that now

 

[kylew]

That would be a PCI-E lane divider. Make sure it reads "to use multi GPUs" rather than multiple graphics cards, as it's not necessarily the same thing.

 

[weird_dave]

Finally got it working, clear cmos had me on edge for a while, thought the mobo died on me when I swapped the lane divider over!
Seems to be running fine now, got the 8800 doing the physX