Processor-Intel(R) Core(Tm) i3-2100 CPU @ 3.10ghz
Ram-2gb ddr3
I have a lenovo think center motherboard.
please recommend me a graphics card so that I can turn my PC into a gaming PC.
It's prebuilt so i'm guessing it's gonna have some crappy 300W psu. If that's the case the best you can get is the gtx 750. You would need more ram, minimum 4gb