3 arrangements of seamless (black only) circuit patterns
This image was made by overlaying different samples of the seamless pattern over a gradient! I have included 3 arrangements of the seamless pattern (only black lines) which you can scale and rotate to your liking. I recommend using a drop shadow/highlight effect or outline to make the lines pop!
I admit that I know 0% about computer hardware and I made up all these shapes for fun. Please don't call the circuit police on me!

Circuit Loop Patterns