System Power Capping Using Information Received From The Installed Power Supply
First Claim
1. A computer system, comprising:
- a power supply interchangeably selected from a group of power supplies having different power capacities, each power supply having an associated power management bus controller with memory storing the power capacity of the associated power supply;
a motherboard having a processor and a baseboard management controller;
a power circuit for providing power from the power supply to the motherboard; and
a power management bus providing communication between the baseboard management controller and the power management bus controller associated with the selected power supply, wherein the power management bus controller provides the stored power capacity to the baseboard management controller, and wherein the baseboard management controller limits operation of the processor to control the amount of power consumed from exceeding the power capacity of the selected power supply.
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Accused Products
Abstract
A computer system comprising a motherboard and a power supply having an associated power management bus controller with memory storing the power capacity of the associated power supply. A power circuit provides power from the power supply to the motherboard, wherein the motherboard has a processor and a baseboard management controller. The system further comprises a power management bus providing communication between the baseboard management controller and the power management bus controller associated with the selected power supply, wherein the power management bus controller provides the stored power capacity to the baseboard management controller. This allows the baseboard management controller to limit operation of the processor to control the amount of power consumed from exceeding the power capacity of the selected power supply. The power capacity of the power supply may be sent to the baseboard management controller in response to booting the motherboard.
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Citations
19 Claims
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1. A computer system, comprising:
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a power supply interchangeably selected from a group of power supplies having different power capacities, each power supply having an associated power management bus controller with memory storing the power capacity of the associated power supply; a motherboard having a processor and a baseboard management controller; a power circuit for providing power from the power supply to the motherboard; and a power management bus providing communication between the baseboard management controller and the power management bus controller associated with the selected power supply, wherein the power management bus controller provides the stored power capacity to the baseboard management controller, and wherein the baseboard management controller limits operation of the processor to control the amount of power consumed from exceeding the power capacity of the selected power supply. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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selectively coupling a power circuit and a power management bus between a motherboard having a baseboard management controller and a power supply having a power management bus controller; sending a power capacity rating of the power supply from the power management bus controller to the baseboard management controller over the power management bus; and controlling the operation of the motherboard to prevent power consumption from exceeding a power cap that is equal to the power capacity rating of the power supply. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer program product for controlling power consumption, the computer program product comprising a computer usable medium embodying computer usable program code, the computer usable program code comprising:
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program instructions for sending a power capacity rating of the power supply from the power management bus controller to the baseboard management controller over the power management bus; and program instructions for controlling the operation of the motherboard to prevent power consumption from exceeding a power cap that is equal to the power capacity rating of the power supply. - View Dependent Claims (16, 17, 18, 19)
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Specification