Microelectronic components are commonly tested with probe cards. Certain aspects of probes, probe cards, and methods of testing microelectronic components are discussed herein. In one specific example, a probe card includes a base and a probe carried by the base. An actuator is associated with the probe and is adapted to selectively position the probe with respect to an electrical contact on the microelectronic component. A test power circuit is coupled to the first probe and adapted to deliver test power to the first probe. In one exemplary method, an actuator is actuated to move the probe from a first probe arrangement to a second probe arrangement.