Method of controlling cooling system for a personal computer and personal computer
AssigneeHitachi, Ltd.
InventorsKenichi Nagashima, Tsuyoshi Nakagawa, Kenichi Saito
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Abstract
In an information processing apparatus, a heat-generating portion including at least a CPU is cooled by circulation of a cooling liquid, the temperature of the cooling liquid is measured and the operating condition of a pump for circulating the cooling liquid is obtained in accordance with the measured temperature of the cooling liquid. The pump is operated on the basis of the operating condition to control the flow rate of the circulated cooling liquid. Further, even after the system for the information processing apparatus stops, the circulation of the cooling liquid is continued until the temperature of the heat-generating portion becomes not higher than a predetermined value.
Claims1
A cooling control method of an information processing apparatus by circulating a cooling liquid to thereby cool a heat-generating portion including at least a CPU, comprising the steps of:
- measuring the temperature of said cooling liquid represented by a circulation path;
- calculating an applied period and a stop period of supply electric power periodically applied to a cooling-liquid-circulating pump in accordance with the measured temperature of said cooling liquid;
- controlling the flow rate of the circulated cooling liquid by operating said pump on the basis of said applied period and said stop period;
- detecting whether the operation of said CPU stops or not;
- and
- continuing the circulation of said cooling liquid until setting of the temperature of said heat-generating portion becomes not higher than a predetermined value even after stoppage of the operation of said CPU.
Dependencies are inferred from the claim text.