Thermal and power management for computer systems

  • US 6,216,235 B1
  • Filed: 07/10/1999
  • Issued: 04/10/2001
  • Est. Priority Date: 06/20/1994
  • Status: Expired due to Term
First Claim
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1. A computer system, comprising:

  • a microprocessor, said microprocessor operates in accordance with a clock signal having a controllable frequency a fan; and

    a thermal management controller operatively connected to said microprocessor and said fan, said thermal management controller operates to thermally manage said microprocessor in accordance with one of a first cooling mode and a second cooling mode, the first cooling mode involving use of said fan for cooling said microprocessor, and the second cooling mode involving reduction in the controllable frequency of the clock signal for cooling said microprocessor, wherein said fan has multiple speeds of operation, and wherein, with the first cooling mode, said thermal management controller causes said fan to operate at higher of the speeds as needed to provided additional thermal cooling.

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