Topic: RayDAT and 9652 on the same PC, possible?

Hello there, I read few threads where people were running multiple PCIe cards on one computer,
which I was't aware it was possible.

I now have a HDSP 9652 with its expansion card on my computer,
can I add a RayDAT card to the same computer?
Do they run ok together? Or would be better to add another 9652 instead?

Since I need 48 channels (minimum) should I still use the expansion card of the 9652?
Or would be better to run all 4 ADAT I/O of the RayDAT and 2 of the 9652 without expansion card?
Does it make any difference?

Sorry for all the questions but I would need to set this up asap
thank you for your help