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US 7,257,721 B2Granted
System and method of power management
AssigneeVIA Technologies, Inc.
InventorsChien-Ping Chung, Chung-Ching Huang, Jing-Rung Wang
Life of this patent
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Abstract
A system and method for power management in computer systems. System status assessed by a Northbridge, and the result transferred to a Southbridge. A system control table is provided in the Southbridge, whereby power management without software control is provided.
Claims11
A power management method for regulating power consumption of a system comprising a Northbridge and a Southbridge, comprising:
- providing a state control table in the Southbridge for defining relationships between a plurality of work states and a plurality of control signals;
- detecting utilization of an internal component actively by the Northbridge and categorizing the utilization into a corresponding work state;
- looking up the state control table to generate a control signal corresponding to the work state;
- and
- delivering the control signal to adjust the utilization.
2 more elements
A power management system capable of regulating power consumption in computer systems without using software protocols, comprising:
- a Northbridge for actively assessing an utilization of an internal component;
- a Southbridge comprising a state control table to generate a control signal according to the utilization;
- a system management bus for delivering the control signal;
- and
- a controller for adjusting the utilization of the internal component according to the control signal.
2 more elements
Dependencies are inferred from the claim text.