I'v got more
http://netjuggler.sourceforge.net/Download/SoftGenLock-HTML/SoftGenLock.html

>It should work with any graphics cards having VGA registers. It was successfully tested with NVIDIA
>and Voodoo cards.

This software lets you genlock synchro pulses between multiple cards in your computer/cluster of computers. So it does the same as those blue and red wires going of the Voodoo cards in http://images.tomshardware.com/2004/05/28/alienware/alienware.zip video.

Im starting to play with the idea of doing DYI SLI. With this software I'll be able to genlock 2 video cards. Next ill need a small cpld/fpga to count Hsync pulses, and switch after half the screen have been drawn to the second source, and after the other half was drawn back to the first one. Now this is exactly what alienware guys did. Nvidia has this circuit onboard, Ati only on "mother" cards.
Whats left is openGL/DirectX wrapper to split the incoming graphics into 2 halves.

Imagine 2 V5 PCI running in SLI . Heck, with such a soft/hardware package you could SLI together any 2 cards.

Is anyone interested in such a project?

QuoteOriginally posted by BFG3dfx

wow you posting mad man lol, ok in my post i stated the v3's ALIENWARE had running together lol, let the post begin.

Quietly tucked away inside the massive Eidos booth were three Alienware Area 51 high-end machines. While they didn't get as much attention as the games they were running (ION Storm's much-hyped Daikatana seemed to be attracting a crowd), each of these machines was being powered by dual Voodoo3 2000s, made possible by Wicked3D's Parallel Graphics Configuration (PGC) technology.

Prior to the showing, naysayers were quick to list possible flaws that included visual artifacts, images that weren't synced properly, or even a dividing line cutting across the monitor. That wasn't the case here - in fact, all three machines were running flawlessly, and although there was no benchmarking utility on hand, using the ol eye-balling technique, the manufacturer's claim of a frame rate between 50 and 60fps wouldn't be too far from the truth. And while a single 143MHz-clocked Voodoo3 2000 doesn't stand a chance against the likes of a TNT2, a pair does - especially considering how easily each overclocks to 166MHz. In fact, Alienware (currently the exclusive proprietors of PGC-enhanced video cards) has claimed to attain frame rates above and beyond 70fps while running Quake II at a blinding 1600x1200 resolution.

http://images.tomshardware.com/2004/05/28/alienware/alienware.zip

now combine something like http://www.gizmodo.com/gadgets/peripherals/matrox-vga-ysplitter-136081.php (but working other way arround) with mesa wrapper to split to 2 screens and bam