Abstract: A servo device auto-booted upon power supply recovery and a method thereof include a plurality of mainboards, a circuit board, a power supply, a memory unit, an auto-booting unit, and a switching unit. The switching unit and the memory unit storing a basic input/output system (BIOS) are disposed on the circuit board. The auto-booting unit outputs a selection signal when the power supply recovers the supply of power after an abnormal power failure, and then the switching unit transmits the BIOS to each mainboard sequentially according to the selection signal, so as to finish the auto-booting of the entire servo device.

Abstract: A servo device auto-booted upon power supply recovery and a method thereof include a plurality of mainboards, a circuit board, a power supply, a memory unit, an auto-booting unit, and a switching unit. The switching unit and the memory unit storing a basic input/output system (BIOS) are disposed on the circuit board. The auto-booting unit outputs a selection signal when the power supply recovers the supply of power after an abnormal power failure, and then the switching unit transmits the BIOS to each mainboard sequentially according to the selection signal, so as to finish the auto-booting of the entire servo device.

Abstract: A power on self test (POST) method is provided. The method is a hardware detecting program applicable for a BIOS of a computer, which requires loading a detecting firmware. The method includes steps (a) running a POST program; (b) testing a hardware device by a first sequence of detecting firmware when running to a hardware detecting program of the POST program; (c) when the hardware testing program sends back an error value, outputting an error message corresponding to the hardware testing program to a memory; (d) re-booting the computer, loading next sequence of detecting firmware to the BIOS, and running the hardware testing program by the next sequence of detecting firmware; and (e) continuing to run the POST program when the hardware testing program sends back a correct value, if the hardware testing program still sends back an error value in Step (e), the process goes back to Step (c).