1. A method of managing shared resources in a multi-computer system with failover support, the method comprising: reading priority detection signals from a computer inserted into the multiple-computer system, the priority detection signals representing a priority of the inserted computer; reading planar detection signals from the computer, the planar detection signals representing an insertion state of all computers currently inserted into the multiple-computer system; determining if the computer has the highest priority among all the computers inserted into the multiple-computer system in accordance with the priority detection signals and the planar detection signals; and in response to determining that the computer has the highest priority, monitoring shared resources and outputting a specific output signal associated with the highest priority computer, the specific output signal providing an identification of the highest priority computer to other computers currently inserted into the multiple-computer system and representing control, by the highest priority computer, of the shared resources, wherein outputting the specific output signal further comprises notifying another computer that the highest priority computer is taking over the shared resources.