asus univesal pci-e slot

[mafiafish]

hi i recently bought an asus p5wd2 premium for £50 (bout $80) which was ok i have an old geforce 6200 tc which actually didnt do to bad i got half life 2 to 1024x768 at full settings, but i decided to upgrade to a x850xt with artic cooling fan so i overclocked to pe edition speeds. the new mother board has the standard pci-ex16 slot and a "universal" pci-e slot with max of 4x speed.
my first question is. can i use cross fire with the board and would there be any point due to the 4x bottle neck.
could i use the 6200 and x850xt together because of the "universal" nature
also i was thinking of upgradeing the x850 to a 7900gt ( which i would then overclock due to the 90nm process(i think)) would i be better to buy a 7800gtx or one 7900gt? thanks for any help

 

[sepuko]

You won't be able to make two too different cards from the same brand work together, especially speaking of ATI because of the requirement for the extra crossfire chip(when talking of SLI they should be exactly the same model). And you want to make an Nvidia+ATI tandem. Strange thought. 7900 series are better than the 7800 one for shure.

 

[moparman390]

I have heard you can put a video card into one of those uniersal slots, my MSI has one. It will not work in tadnem with tthe other card howerer. It's just there if you want to run more monitors.