So I just purchased a mac pro from ebay but unfortunately don't know what model it is, it's in the mail currently but I'm hoping to find out before so I can order graphics card for it. It's a Quad 2.66GHz Intel Xeon dual. I checked the wikipedia and it could possible be the 2006 mac pro 1,1 or the 4,1 from 2009 possibly? As of right now I just need to get some ram and a graphics card to get it running. I'd like to order it before it arrives if possible so I'm not stuck waiting for everything.