Basically the doors are wide open since the TDP was about 240 Watts. You should be able to slip in any of the 1050 to 1080 cards. The 1080 cards usually are sub 200 Watts so no issue there.
I'm running a nVidia GTX570 (2GB), 12Gb 1600MHz memory and running windows 7 with the standard 500GB harddrive. I'm upgrading to an SSD. I just gotten into doing 3d CAD work for my 3d printer and I'm trying to make this system last a bit longer and work a bit better on the engineering models. I'm in the process of replacing the mobo due to the Ethernet port and the SD card ports no longer working.
I do do some gaming such as Civilization, LOTHRO, Diablo, Steel Division and most of the Fallout Series. I haven't overclocked the system and at it's age I don't think I'm going to mess with that.
Thanks for your time
Randy

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