X1900 Crossfire setup

PandaZ3

Okay! I'm a Winner! well... a EBay auction winner anyway.. Heh Heh

I did get a X1900 "XTX" Crossfire card, and I will say I believe all crossfire master-cards were X1900 XT, but I'm not for dead solid positive on that. The second card was a X1900 XTX for real. I have a X1900 XT in a different confuser (computer) and I can swap it for the X1900 XTX. would that be a good thing to do... I expect I will if I am right about the master card being 1900 XT speeds.

Then about the board and drivers, I am using a abit AT8 32X that currently is running Vista HP 64 and a X1800 XT with 7.8 Cats

Should I uninstall the 7.8's and put both 1900's in and hook them together and reboot or what?