The NVIDIA® nForce® 650i SLI™ is the NB according to the sheets.
if memory serves me correct, it was during the mid of the Xfire / SLI war, which cross partners didnt want to let us scale cards unless it was on their own terms and own motherboard chipset.
The Intel counterpart was the P35, which supported Xfire... and hacked SLI drivers.
Intel eventually strong armed NVidia to give up SLI starting offically on the P45 line and on...
So in best regards id say no.... xfire might get tricky to setup correctly... if your not tech savey, id suggest u not attempt it.