Yip I've just used one of the operator buttons behind the coin mech door, wired that to the connector on the motherboard. One advantage of that is my 4 year old can't just switch the cab on whenever he wants to as the door is locked when I'm not about. You can set windows to power off the PC with the power button as well so once the cab is finished with its just one button press, then Maximus & windows shut down and then the PC powers off. And as a matter of habit I always then switch it off at the wall when I'm done so the monitor doesn't stay on standby for hours.