GTX260 in SLI

Of course they will work correctly if the chipset mate. the Board supports SLI, and the video card will be connected to one or two plumes that are often packaged with graphics cards, one thing per card.

Sell this garbage and buy something less garbage type gtx 570 - 580 gtx 660. hd 7850 - 7870

I hope the power supply you have is appropriate.. )

Belomorkanal
But there is a difference of two or one loop to connect?

bloomm
It's not like I asked) I in addition, two more corps are assembled. Just want to build this old school.

Artie
This can figure it out))))))))

AlexxxPredator
Probably even without bridges (loops) will work with the same FPS that with bridges. But in this case, it will significantly increase the load on the PCI-E that can lead to significant performance penalty in some situations, especially if graphics cards connected as PCI-E 2.0 8х8х, that is, each card can only use half of the physically available to her lines the old (2.0) version of PCI-E.
A significant difference between one and two bridges should not be at all.

Belomorkanal
Thank you for your detailed answers.