INFORMATION PROCESSING SYSTEM

PROBLEM TO BE SOLVED: To steadily and normally perform an operation of multiprocessor even after degradation of a processor in which an error occurs. SOLUTION: When an error occurs in any of processors out of plural processors 21 to 2n , an error detection signal is outputted to an error information storage register 6 from the processor and a '1' is stored in a specified bit as error information. After restarting up of an information processing system, an information register monitoring part 7 reads in the error information of the error information storage register 6, outputs a control signal for stopping a voltage control module of a processor in which an error occurs out of voltage control modules 31 to 3n and stops a supply of power source voltage.