Please...let me understand! I have two different nvidia ( a 9600gt and a quadro fx 4600), i have two pciexpress slots on my motherboard but it dosen't support nvidia sli tecnology (only ati crossfire). So, to have two nvidia card working together ..i need: 1/ a motherboard supporting Sli 2/ two nvidia twice Right?? Since my motherboard dosen't support SLI...if i put the second vga (9600gt) it will work just to have other monitor working? I use a efi string in boot.plist for my quadro, so i can remove it using the last chimera on snow leopard ? Anyway this is a great work!! if i can't use it now...surely ill use on my new hardware !