Bad video card

So I brought my wife's computer to a mac repair shop to figure out what is wrong with it, come to find out the video card is bad. Here is her computer specs:

http://www.everymac.com/systems/appl...lem-specs.html

This is her video card:
NVIDIA GeForce GT 120 with 512 MB of GDDR3 memory was installed in a double-wide, 16-lane PCI Express 2.0 graphics slot.


So I removed the old video card and I have been looking for a replacement but I cannot seem to find one.

I stumbled across this: http://www.newegg.com/Product/Produc...AC-CriteoBrand

Someone told me that not every video card will work in MACs, there are special cards to buy. If someone could educate me on this I would be greatful.

I found this snippet which hopefully helps you a bit if you haven't already found this info yourself. At least you have some clues as to a configuration of only two cards out of the possible three. I'd strongly suggest you keep doing the groundwork on this before committing yourself more.

Thanks, any little bit helps. It's hard to research older mac stuff it seems, I have been over the web looking for any little bit. I think we are going to first try baking the video card in the oven, something about repairing cracks in the welding. If that doesn't work I am going to have to replace this card with something.