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US 7,412,614 B2Granted
Power management using a pre-determined thermal characteristic of a memory module
AssigneeHewlett-Packard Development Company, L.P.
InventorJoesph W. Ku
Life of this patent
Estimating the term…
Abstract
A computer system includes a memory module. Power management in the computer system is performed with at least one temperature rise parameter (ΔTx) of the memory module.
Claims20
A method of estimating power dissipation in a computer system, the computer system including a memory module, the method comprising:
- determining at least one temperature rise parameter of the memory module for a mode of operation;
- estimating current drawn by the memory module during a mode of operation based at least on the temperature rise parameter for the mode of operation;
- estimating the power dissipation of the memory module during the mode of operation based at least on the current drawn by the memory module during the mode of operation;
- and
- accessing an absolute temperature limit for the memory module, the temperature rise parameter being used by accessing a value for the temperature rise parameter, summing the value with a value indicating ambient temperature, and comparing the sum to the temperature limit.
2 more elements
A method of performing power management in a computer system with respect to an application, the computer system including a memory module, the method comprising:
- computing the current draw of the memory module for a mode of operation based on at least one pre-determined value for temperature rise of the memory module for the mode of operation;
- using the current draw of the memory module for the mode of operation to estimate power dissipation of the memory module when the application is running;
- and
- accessing an absolute temperature limit for the memory module, summing the value for temperature rise with a value indicating ambient temperature, and comparing the sum to the temperature limit.
1 more element
A computer comprising:
- a memory module;
- computer-readable memory encoded with power management software for:
- determining a value for at least one temperature rise parameter of the memory module;
- computing the current draw of the memory module for a mode of operation based on the value for temperature rise of the memory module for the mode of operation;
- using the current draw of the memory module for the mode of operation to estimate power dissipation of the memory module when the application is running;
- and
- accessing an absolute temperature limit for the memory module, calculating the temperature rise based on a value for the temperature rise parameter, summing the temperature rise with a value indicating ambient temperature, and comparing the sum to the temperature limit.
4 more elements
Dependencies are inferred from the claim text.