I currently have an Intel Core 2 Duo E6750 clocked at 2.67 GHz in my computer. What options do I have to upgrade the CPU that would be a plug-and-play solution? I do not want to replace my motherboard ...

I've got a pretty old system with a Core2 Quad Q9550 on an Asus motherboard (P5N7A-VM) with the NVIDIA GeForce 9300 Chipset. I'd like to throw a modern GPU in there, like a 1060, to play Doom. Is this ...