A power machine (100; 200; 300) having a frame (110; 210), an engine supported by the frame, and further comprising: a structure for receiving one of a plurality of attachable implements capable of being operated by the power machine; an implement circuit configured to selectively provide power to an implement that is operably coupled to the power machine; an implement pump driven by the engine and configured to supply a first variable displacement flow of pressurized hydraulic fluid to the implement circuit; a drive circuit including at least one drive motor; a drive pump driven by the engine and configured to supply a second variable displacement flow of pressurized hydraulic fluid to the drive circuit; the power machine characterized by further comprising: a controller coupled to the implement pump and the drive pump and configured to selectively provide power to the implement circuit and the drive circuit in response to signals from user input devices, the controller being configured to monitor power in each of the implement circuit and the drive circuit and to generate control signals to control prioritization of flow of hydraulic fluid to the implement circuit and to the drive circuit by individually controlling the first variable displacement flow of the implement pump and the second variable displacement flow of the drive pump in order to manage engine power consumption, wherein the controller is further configured such that, when the controller is free from any signals from the user input devices to provide power to the implement that is operably coupled to the power machine, power to the drive circuit is prioritized higher than power to the implement circuit and the controller controls the implement pump to reduce the first variable displacement flow of the implement pump. a structure for receiving one of a plurality of attachable implements capable of being operated by the power machine; an implement circuit configured to selectively provide power to an implement that is operably coupled to the power machine; an implement pump driven by the engine and configured to supply a first variable displacement flow of pressurized hydraulic fluid to the implement circuit; a drive circuit including at least one drive motor; a drive pump driven by the engine and configured to supply a second variable displacement flow of pressurized hydraulic fluid to the drive circuit; the power machine characterized by further comprising: a controller coupled to the implement pump and the drive pump and configured to selectively provide power to the implement circuit and the drive circuit in response to signals from user input devices, the controller being configured to monitor power in each of the implement circuit and the drive circuit and to generate control signals to control prioritization of flow of hydraulic fluid to the implement circuit and to the drive circuit by individually controlling the first variable displacement flow of the implement pump and the second variable displacement flow of the drive pump in order to manage engine power consumption, wherein the controller is further configured such that, when the controller is free from any signals from the user input devices to provide power to the implement that is operably coupled to the power machine, power to the drive circuit is prioritized higher than power to the implement circuit and the controller controls the implement pump to reduce the first variable displacement flow of the implement pump.