Patent ID: 8132032
Filing Date: 2012-03-06
Classification: G06F,Y02D

Abstract:
1. A power-saving electronic device for use with a computer motherboard in a “suspend to memory” state, comprising: a first device controlled by a second device and configured to controllably determine whether a first standby power forms a close circuit or an open circuit with a south bridge chip and a super input output (SIO) chip of the computer motherboard; and the second device for determining whether the computer motherboard is in the “suspend to memory” state so as for the first standby power to form an open circuit with the south bridge chip and the SIO chip under control of the first device upon a positive determination, determining whether the computer motherboard is in the “suspend to memory” state so as for a second standby power to form a close circuit with a memory controller and a main memory of the computer motherboard upon a positive determination, receiving a power switch signal generated by a power switch, and enabling the first standby power to form a close circuit with the south bridge chip and the SIO chip under control of the first device upon receipt of the power switch signal.