Place the motherboard on a clean, flat surface.

Preheat your soldering iron. The power port has three points of connection to the motherboard (pictured below). Using your soldering iron, apply heat to each solder joint in turn while pulling the power port away from the board.

Soldering irons can reach temperatures of over 500 degrees. Watch your fingers!

For more information on soldering refer to How to Solder and Desolder Connections