iZ3D with SLI workaround?

Post by **Sabre2552** » Thu Jun 19, 2008 8:57 pm

http://www.overclock.net/nvidia/318848- ... vista.html

You use 3 video cards, 2 in SLI and one generic Nvidia card that is manipulated to carry the second monitor even though that isn't normally possible. Might this trick work for an iZ3D monitor (or at least the dual display driver settings)? I'm not sure how many of you SLI-ers have another video card slot and an extra video card lying around, but I think it's at least worth a shot.

Post by **cybereality** » Thu Jun 19, 2008 10:59 pm

That could be interesting, but who has space for 3 video cards? I mean, my mobo can handle it, but that wouldn't leave room for anything else. Thats just crazy.

Post by **Sabre2552** » Thu Jun 19, 2008 11:11 pm

cybereality wrote:That could be interesting, but who has space for 3 video cards? I mean, my mobo can handle it, but that wouldn't leave room for anything else. Thats just crazy.

Haha, well, the GTX280 and GTX260 have support for Tri-SLI, so obviously some people do.

Post by **BlackQ** » Fri Jun 20, 2008 1:04 am

Hi, guys!

There is not problem for such setup if iZ3D is primary display. For coming 1.09 this limitation will be removed and iZ3D can be or can not be primary display

Post by **LukePC1** » Fri Jun 20, 2008 4:19 am

I'm not shure it would work (good).
- SLI cuts of all but one plug. --> you might connect one of IZ3D plugs here.
- the other plug goes to the third card, which is LOW performance. It can 'only' handle 2D stuff or transport all the data

possible result: The third card slows down the whole system, since it has to calculate the images when gaming by itself, right?

For 2D and windows applications the third card is good enough, but has it to render for the Iz3D???

Or other question: does the system profit from SLI, when the monitor is NOT plugged to the SLI bundle?

Post by **cybereality** » Fri Jun 20, 2008 2:41 pm

LukePC1 wrote:Or other question: does the system profit from SLI, when the monitor is NOT plugged to the SLI bundle?

My initial thought is no. Without the SLI bridge you would have to render with the powerful card, then somehow transfer that frame buffer through to the system RAM and then duplicate it on the weaker card in order to output to the second monitor. Like you said, it might work, but it would bottleneck the system and probably be slower than just using one high-end video card. But I don't have an SLI setup (yet) so I am not positive about this.

EDIT: Wait, can a USB device like this be of any use?
http://www.evga.com/articles/409.asp

EDIT2: There is also some software that acts like a TH2G, maybe that could help too:
http://www.kegetys.net/SoftTH/