A friend of mine scored a quad 2.66 with a 20" ACD for $900! what a deal. He has 4 monitors he wants to connect. I have an old 64mb video card from a G5 I want to give him if it will work. Will it work in the mac pro?
First, it will not work, cause it's an AGP Pro card - GF 5200 Ultra, not PCI-Express = you cannot stick it even to G5 Dual Core - fits only AGP versions of G5.
My advice: sell it on ebay and buy your friend another card. The G4 and G5 AGP cards go for a decent amount since there aren't that many of them floating around these days, outside of flashed cards.