Hello! On a power supply board, outputs of voltages are marked in various places, such as +5v next to some of the solder terminals. Voltages for power supplies are typically +5.1, +3.3, +12.0, and -12.0. Some power supplies have a 25v supply (as on some Macs, for the ADC connector for the monitor). I saw one terminal marked '12VN'. Would anyone know with certainty what 12VN means?