Patent ID: 8924602

Claim:
A rack server, comprising: a ground element having a plurality of protrusions, the plurality of protrusions being arranged on a same side of the ground element, and positions of the plurality of protrusions being different from each other; a plurality of power supply backplanes each having a connection unit, the connection unit having a plurality of connection terminals, the plurality of connection terminals each having a through hole, each of the power supply backplanes being coupled to the ground element, and one of the plurality of through holes of the plurality of connection terminals contacting one of the protrusions; and a plurality of fan controller boards configured for being coupled to one of the power supply backplanes respectively, each of the plurality of fan controller boards comprising: an addressing circuit coupled to the plurality of connection terminals of the corresponding connection unit, and configured for detecting a coupling relationship between the plurality of connection terminals and the ground element, so as to generate an address signal upon the coupling relationship between the plurality of connection terminals and the ground element; and a microcontroller coupled to the addressing circuit, and configured for receiving the address signal, so as to generate corresponding address information.