Just set it up close to your machine so you can plug the 3 pin header in somewhere on your motherboard so it powers up. Take some precautions of where to place it so it doesn't mess anything up if there is a leak. I've been watercooling systems for 17 years now. I have a small external HD enclosure with a power on/off switch that I use to power my pumps and such when I'm doing leak tests. That way I can power systems up to check for leaks, and not have to worry about anything going horribly wrong if there is one.