Patent ID: 8397409

Claim:
A computer system, comprising: a power supply; a hard disk; a storage unit, having a control program; a controller, coupled to the storage unit and the light signal circuit, and when the control program is started, the control program stops an original service of the light signal in a default stares of the computer system and transferring the controlling right of the light signal through the controller, so as to control the light signal through the controller according to a status of the computer system; a light signal circuit, having a light signal which comprises a first light signal and a second light signal, the light signal circuit being disposed on a case of the computer system; and wherein the light signal circuit comprises: a hard disk light signal controller, for controlling the first light signal according to a status of the hard disk; a first switch module, coupled to the first light signal and the hard disk light signal controller, wherein the controller determines a status of the first switch module according to whether the control program is started, the first light signal is controlled by the hard disk light signal controller when the first switch module is enabled, and the first light signal is controlled by the controller when the first switch module is disabled; a power supply light signal controller, for controlling the second light signal according to a status of the power supply; a second switch module, coupled to the second light signal and the power supply light signal controller, wherein the controller determines a status of the second switch module according to whether the control program is started, the second light signal is controlled by the power supply light signal controller when the second switch module is enabled, and the second light signal is controlled by the controller when the second switch module is disabled.