So I think my Original Apple mac pro nVidia GeForce 8800 GT 512MB DVI PCIe Video Graphics Card is dying on me. It won't wake from sleep anymore, and so I have to hard power down. I was able to boot back up a few times, swapping the DVI port on the card, but now neither port will give me a display when powering back on, it did for a few days, but now nothing. So I think I need to replace this card. I'm seeing a seller on eBay who has the Original card, which the photo looks exactly like what I just pulled out of my Mac Pro, then they are selling a 2nd Gen version as well. It looks about twice as thick however. I think I have the space in side the case to fit the bigger 2nd gen one. The question is would you replace the card with the same exact thing or do the 2nd gen, what did they come out with a 2nd gen one for, I'm assuming they probably made some improvements? For what I do this card has been fine, photo editing and some light video editing and basic other computer tasks, so no need for me to buy a $$$$$ card. Maybe there is a newer gen card and other brand that might be just as good and cost the same or not too much more I should consider? My Mac Pro is a 2008, I don't know all the exact specifics and can't get it up to display to grab any of that information from the System Info to share, sorry. I'm going to try to clean the dust of this GPUs fan and see if that helps and gets me back up temporarily so I can gather up all that info. Anything else that I should be checking, or does this sound like typical GPU failure? Thanks.