Check the manual for the specific location.
You should find the appropriate port on your motherboard for the 2-pin connector.
The connection isn't compatible because the motherboard doesn't have a matching socket. You'd have to either swap it out or create a custom solution.
Sure, I'm here to help! Let me know how I can assist you.
Seems like a video card fan header.
Seems like a PSU enthusiast from a PSU.