Computer system and bootup and shutdown method thereof

摘要

A computer system and a bootup and shutdown method thereof are provided. The computer system includes a memory, a chipset, a basic input/output system (BIOS), and an embedded controller, and an operating system (OS) is executed in the computer system. In the shutdown and bootup method, the embedded controller is notified to prepare to enter into a standby mode when the BIOS intercepts a shutdown instruction issued by the OS. The content of a register of the chipset is set according to the standby mode. A current operation mode data of the computer system is retained, and power is continuously supplied to the memory to make the computer system enter into the standby mode.

主权项

1. A bootup and shutdown method of a computer system, wherein the computer system comprises a memory, a chipset, an embedded controller, and a basic input/output system (BIOS), and only one operating system (OS) is executed in the computer system, the bootup and shutdown method comprising:
every time the BIOS intercepts a shutdown instruction issued by the only one OS, notifying the embedded controller to prepare the computer system to enter into a standby mode except the only one OS and to prepare the only one OS to enter into a shutdown mode without rebooting the computer system; setting a content of at least one register of the chipset by the BIOS according to the standby mode of the computer system and the shutdown mode of the only one OS; retaining a current operation mode data except OS data in the memory of the computer system; letting the only one OS enter into the shutdown mode and continuously supplying power to the memory to make the computer system enter into the standby mode without rebooting the computer system; powering on the computer system; determining whether a hardware change has been made on the computer system; if no hardware change has been made on the computer system, restoring a setting of the at least one register of the chipset by using the operation mode data in the memory; turning on a monitor of the computer system; executing a validation procedure corresponding to a hard disk of the computer system; checking accuracy of an initialization data of a local advanced programmable interrupt controller (local APIC); and starting the only one OS.