Patent ID: 8195966
Filing Date: 2012-06-05
Classification: G06F,Y02D

Abstract:
1. An electronic device for reducing power consumption during power off of a computer motherboard, which is applied to the computer motherboard conformed to an Advanced Configuration and Power Interface (ACPI) specification, and the electronic device comprises: a first device, configured to control a stand-by power of a power supply to form an electrical connection or an electrical disconnection with an SIO (Super Input Output) chip and a Southbridge chip of the computer motherboard; a second device, configured to receive a power switching signal generated by a power button, and, after receiving the power switching signal, to make the first device control the stand-by power to form the electrical connection with the SIO chip and the Southbridge chip of the computer motherboard, and, to copy the power switching signal and output the copied power switching signal to the computer motherboard, and, according signals from the Southbridge chip to determine that when the computer motherboard is at S4 state or S5 state of ACPI make the first device control the stand-by power to electrically form the electrical disconnection with the computer motherboard so as to make disconnection the SIO chip and the Southbridge chip from the stand-by power; wherein, the first device and the second device are electrically connected to the stand-by power, and the first device is electrically connected to the SIO chip and the Southbridge chip.