I have a custom motherboard/backplane that uses molex plugs/sockets as I/O. I'd like to take an output from the motherboard and connect it into an input on the same motherboard. That way I'd be able to "emulate" input by sending signals through the output.
Assuming this is even possible (any experience/insight on doing something like this is appreciated), is there any danger in "looping" I/O on a motherboard like this? (I.e. shorting out the motherboard, etc.)