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System and method for autonomous power sequencing

  • US 7,444,532 B2
  • Filed: 12/03/2001
  • Issued: 10/28/2008
  • Est. Priority Date: 12/03/2001
  • Status: Expired due to Term
First Claim
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1. A computer system comprising:

  • a power supply;

    a plurality of server modules;

    a midplane comprising;

    a plurality of connectors receiving the plurality of server modules, each connector having a unique predetermined address independent of the plurality of server modules; and

    an address module obtaining the unique predetermined addresses of the plurality of connectors from the midplane and to calculate a start-up time associated with each connector based on (a) the unique predetermined address for each connector and (b) a multiplication factor associated with a duration of an inrush load of at least one of the plurality of server modules, the start-up times calculated for the plurality of connectors defining a start-up sequence for the plurality of connectors;

    wherein the computer system couples the power supply to the plurality of server modules based on the start-up times and the defined start-up sequence associated with the plurality of connectors; and

    a management controller associated with the midplane, the management controller storing the defined start-up sequence for the plurality of server modules and the management controller providing sequence redundancy by sequencing power to the plurality of server modules during start-up if the midplane experiences a failure.

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