Abstract: A firmware variable update method for BIOS of a computer system is provided. The firmware variable update method includes writing an update capsule file and a firmware update command into a memory according to a first system management interrupt signal and performing a shutdown process, triggering a second system management interrupt signal and accordingly writing a variable update command into the memory, switching the computer system into a sleep state before the shutdown process is completed and activating a timer, performing a first reboot process when the timer expires, utilizing the update capsule file to update an original capsule file of the BIOS according to the firmware update command during the first reboot process, and performing a second reboot process and utilizing an update variable file to update an original variable file of the BIOS according to the variable update command during the second reboot process.

Abstract: The invention introduces a POST (power-On-Self-Test) debugging method, executed by a processing unit, which contains at least the following steps. A phase number indicative of a current POST phase is set. A driver is selected from a scheduled queue. A GUID (Globally Unique Identifier) of the driver is obtained. The phase number and the GUID are stored or output, so as to recognize the phase of the driver being interrupted upon a break point of the driver. After that, the driver is executed.

Abstract: A firmware variable update method for BIOS of a computer system is provided. The firmware variable update method includes writing an update capsule file and a firmware update command into a memory according to a first system management interrupt signal and performing a shutdown process, triggering a second system management interrupt signal and accordingly writing a variable update command into the memory, switching the computer system into a sleep state before the shutdown process is completed and activating a timer, performing a first reboot process when the timer expires, utilizing the update capsule file to update an original capsule file of the BIOS according to the firmware update command during the first reboot process, and performing a second reboot process and utilizing an update variable file to update an original variable file of the BIOS according to the variable update command during the second reboot process.

Abstract: The invention introduces a POST (power-On-Self-Test) debugging method, executed by a processing unit, which contains at least the following steps. A phase number indicative of a current POST phase is set. A driver is selected from a scheduled queue. A GUID (Globally Unique Identifier) of the driver is obtained. The phase number and the GUID are stored or output, so as to recognize the phase of the driver being interrupted upon a break point of the driver. After that, the driver is executed.

Abstract: A method and an apparatus for testing a memory are provided, and the method is adapted for an electronic apparatus to test the memory. In the method, a left edge and a right edge of a first waveform of a clock signal for testing the memory are scanned to obtain a maximum width between two cross points of the left edge and the right edge. A central reference voltage of a data signal outputted by the memory is obtained, and a data width between two cross points of the central reference voltage and a left edge and a right edge of a second waveform of the data signal is obtained. Whether a difference between the data width and the maximum width is greater than a threshold is determined; if the difference is greater than the threshold, the memory is determined to be damaged.

Abstract: A method and an apparatus for testing a memory are provided, and the method is adapted for an electronic apparatus to test the memory. In the method, a left edge and a right edge of a first waveform of a clock signal for testing the memory are scanned to obtain a maximum width between two cross points of the left edge and the right edge. A central reference voltage of a data signal outputted by the memory is obtained, and a data width between two cross points of the central reference voltage and a left edge and a right edge of a second waveform of the data signal is obtained. Whether a difference between the data width and the maximum width is greater than a threshold is determined; if the difference is greater than the threshold, the memory is determined to be damaged.