I have an optiplex 745 and i only have one pci slot for my video/graphics card and i want to add my old graphics card as well, is there anyway i can do that?
Well from what I could find on that PC it only has one full length x16 slot so that would be all you can add to it. You can't put two PCI-E GPU's into a system that does not have two x16 PCI-E slots.
You can have multiple different graphics cards but what os do you have? 7/8 deals with multiple drivers better. If you mean 2 pcie cards, I'm not going to recommend a pci to pcie adapter.
Well from what I could find on that PC it only has one full length x16 slot so that would be all you can add to it. You can't put two PCI-E GPU's into a system that does not have two x16 PCI-E slots.