Abstract: A computer system having an operating system which complies with the advanced configuration and power interface (ACPI) specification comprises a temperature sensor for sensing an inner temperature of the computer system and for generating an alarm signal when the sensed temperature exceeds a predetermined value, a bridge controller for generating a system management interrupt (SMI) in response to the alarm signal, a basic input-output system (BIOS) read-only memory (ROM) for storing a power management routine, and a power management processor for receiving a power control command signal generated by the power management routine in response to the SMI, and for generating a system command interrupt (SCI). The operating system causes the computer system to enter a “sleep” state in response to the SCI. The computer system enters the “sleep” state when the inner temperature exceeds the predetermined value, and restores data normally when the computer system resumes operation.

Abstract: A computer system having an operating system which complies with the advanced configuration and power interface (ACPI) specification comprises a temperature sensor for sensing an inner temperature of the computer system and for generating an alarm signal when the sensed temperature exceeds a predetermined temperature value, a bridge controller for generating a system management interrupt (SMI) in response to the alarm signal, a basic input-output system (BIOS) read-only memory (ROM) for storing a power management routine of the computer system and a program for controlling input/outputs of the computer system, and a power management processor for receiving a power control command signal generated by the power management routine in response to the SMI, and for generating a system command interrupt (SCI). The operating system controls the computer system to cause it to enter a “sleep” state in response to the SCI.

Abstract: A computer system with power saving function and a method for operating the computer system whose maloperation or halt is capable of being prevented during system management interrupt (SMI) forpower saving operation, comprises a central processing unit determining whether or not a resume operation is performed; storing, if the resume operation is performed, a present time as a resume starting time; performing the resume operation; determining, by the central processing unit, whether or not a SMI request signal for performing a power saving operation is generated so as to store a plurality of register information of the computer system in an auxiliary storage device; determining, if the SMI request signal is generated, whether the power saving operation can be performed with referring to the stored resume starting time; storing, if the power saving operation can be performed, the plurality of register information in the auxiliary storage device and setting a completion flag in a CMOS memory upon completion of