The FrozenCPU 24-pin Power Supply Jump Start Connector is a wonderfully useful device that plugs into your power supply's ATX connector (designed for 24 pin, will work with 20-pin) and lets the power supply run without being plugged into a motherboard. It was specifically designed for use when a user needs to refill their water cooling system. Now you can run the pump with the power supply and not endanger your motherboard by having voltage running through it when water spills might occur!
NOTE: Please note that the jumper cable in the connector is supposed to conect the green ATX logic wire with a black ground wire.