So as i have said, in my previous question. my brother has a GIGABYTE GA-p55-ud3(crossfire). that only supports crossfire. now he has a nvidia card. and wants to buy another one the same. but does not have support for SLI. he only has support for crossfire. is there any way to work a way around that to get support for SLI. without buying a new motherborad.
The P55 north bridge on the board supports both crossfire and sli http://techreport.com/articles.x/17513. I don't know about the board itself. Ill do some more looking.
EDIT: http://www.intel.com/products/desktop/chipsets/P55/P55-overview.htm Says that it's dependent on the motherboard design. It will not work.
I also read that both slots will run 16x4 on this board. http://ee.giga-byte.com/products/mb/specs/ga-p55-ud3_10.html
It really isn't feasible even if it runs at crossfire or sli. You should get a new board either way if you plan on running 2 cards. Otherwise they will run horribly, or at least the second one will.
My final answer: Although the north bridge supports it, the board doesn't. There is no work around. :(