Examples disclose a system comprising a power supply, coupled to an output power and an auxiliary power. The system is further comprising a controller to interrupt the output power through a switch coupled to the output. The controller is to interrupt the output power based a determination the output power is below an output threshold. The controller is further to interrupt the auxiliary power coupled to the output. The controller is to interrupt the auxiliary power based on a determination the auxiliary power is below an auxiliary threshold. Additionally, the system discloses the switch is to disconnect the output power.