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Thermal control arrangement for a data processing system

  • US 8,662,943 B2
  • Filed: 01/05/2006
  • Issued: 03/04/2014
  • Est. Priority Date: 08/25/2005
  • Status: Active Grant
First Claim
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1. A method to adjust a temperature of a data processing system, comprising:

  • receiving a signal asserted by a first temperature control loop of a first component of a system, wherein the signal is asserted when a first temperature of the first component exceeds a threshold level for the first component used by the first temperature control loop, the first component including an on-chip processing logic which generates heat;

    adjusting a target temperature level for a cooling component used by a second temperature control loop of the system based on the signal, wherein the second temperature control loop is an off-chip temperature control loop configured to maintain a second temperature of the cooling component below the target temperature level, wherein the second temperature control loop is configured to control a behavior of the first temperature control loop and wherein the first temperature control loop adjusts the target temperature level for the cooling component of the second temperature control loop, wherein the cooling component has a thermal mass greater than the thermal mass of the first component, and wherein at least one of baseline target temperature level data or tolerance parameters data stored in a memory and used by the second temperature control loop were determined by increasing the second temperature until the signal was asserted by the first temperature control loop, measuring the second temperature, and determining a difference between the measured second temperature and a maximum temperature of the first component.

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