Detection of airflow anomalies in electronic equipment

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8032331
APP PUB NO 20090138228A1
SERIAL NO

12128540

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Abstract

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Thermal diagnostic systems and methods are provided for improved detection of airflow anomalies in a computer system. In particular, processor load is selectively increased to amplify the effects caused by any airflow anomaly that may be present in the computer system. Workload migration may be used to shift processor load from another node to a target node. Artificial load may also be generated on the target node. The processor load increased to a level sufficient that an airflow anomaly would cause a detectable temperature difference at the selected node. The processor load may be increased by an amount computed to generate this detectable temperature difference. Alternatively, the processor load may be increased by a predetermined amount of between 40% and 100% of full processor utilization. While at the increased processor load, actual temperature sensed by temperature sensors may be compared to temperatures predicted from the model to detect the presence or absence of an airflow anomaly.

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Patent Owner(s)

Patent OwnerAddress
LENOVO INTERNATIONAL LIMITED979 KING'S ROAD 23/F LINCOLN HOUSE TAIKOO PLACE QUARRY BAY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dalton, Angela Beth Austin, US 4 69
Harper, Richard Edwin Chapel Hill, US 32 890
Piazza, William Joseph Holly Springs, US 36 940

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