IP Library › Granted Patent US 7,310,737
Granted Patent B2
US 7,310,737 · App. 10/608,151 · Granted Dec 18, 2007

Cooling system for computer systems

Assignee: Hewlett-Packard Development Company, L.P.
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Quick Facts
Patent No.
US 7,310,737
App. No.
10/608,151
Filed
Jun 30, 2003
Granted
Dec 18, 2007
Kind
B2
Examiner
CHEN, TSE W
Art Unit
2116
USPC
713/300
Abstract

A cooling system for cooling computer systems detects heat dissipated by the computer systems. If the heat dissipated by the computer systems exceeds a threshold, at least one component of the computer systems is placed in a lower-power state to reduce heat dissipation.

Claims (25)

1. A cooling system for cooling computer systems, the cooling system comprising:

temperature sensors operable to detect heat dissipated by the computer systems;

cooling components distributing cooling fluid to the computer systems;

at least one circuit operable to determine an aggregate amount of heat dissipated by the computer systems from the temperature sensors and compare the aggregate amount of heat being dissipated by the computer systems to a threshold, wherein the threshold is based on a maximum cooling capacity of the cooling system, wherein the cooling system is designed to cool the computer systems based on a nominal heat dissipation of the computer systems, and the nominal heat dissipation is less than a maximum heat dissipation of the computer systems,

wherein the at least one circuit is operable to place at least one electrical component of the computer systems in a lower-power state to reduce heat dissipation in response to the amount of heat being dissipated by the computer systems exceeding the threshold; and

the at least one circuit is further operable to compare an amount of cooling fluid being provided to cool the computer systems to an excess cooling threshold to determine if excess cooling fluid is available, and place one or more electrical components of the computer systems in a higher-power state from a lower-power state if excess cooling fluid is available.

2. The cooling system of claim 1 , wherein the lower-power state comprises reducing power consumption of one or more electrical components in the computer systems.

3. The cooling System of claim 1 , wherein the maximum cooling capacity of the cooling system is based on an aggregate of the nominal heat dissipation of each of the computer systems.

4. The cooling system of claim 1 , wherein the nominal heat dissipation is based on an average heat dissipation of the electrical components.

5. The cooling system of claim 1 , wherein the at least one circuit controls the cooling components to distribute the cooling fluid as a function of the heat dissipated by the computer systems.

6. The cooling system of claim 5 , wherein an amount of cooling fluid distributed to at least one of the computer systems is substantially proportional to an amount of heat being dissipated by the at least one of the computer systems.

7. The cooling system of claim 5 , wherein the cooling components comprise one or more of a valve, valve controller, blower, pump, louvers, actuated cells, and cooling plates.

8. The cooling system of claim 5 , wherein the cooling fluid comprises at least one of air and liquid coolant.

9. The cooling system of claim 5 , wherein the at least one circuit is operable to control at least one of valves and louvers to control air flow for cooling the computer systems based on the amount of heat being dissipated by the computer systems.

10. The cooling system of claim 5 , wherein the at least one circuit is operable to control at least one of valves and a pump to distribute coolant for cooling the computer systems based on the amount of heat being dissipated by the computer systems.

11. The computer system of claim 1 , wherein the at least one circuit controls the cooling components to distribute the cooling fluid as a function of workload for the computer systems.

12. An apparatus for controlling cooling of computer systems comprising:

means for distributing cooling fluid to the computer systems;

means for determining an aggregate amount of heat dissipated by the computer systems;

means for comparing the aggregate amount of heat being dissipated by the computer systems to a threshold based on a maximum cooling capacity of the cooling system, wherein the maximum cooling capacity of the cooling system is based on a nominal heat dissipation of the computer systems, the nominal heat dissipation being less than a maximum heat dissipation of the computer systems;

means for placing at least one electrical component in the computer systems in a lower-power state to reduce heat dissipation in response to the amount of heat being dissipated exceeding the threshold;

means for comparing an amount of cooling fluid being provided to cool the computer systems to an excess cooling threshold to determine if excess cooling fluid is available; and

means for placing one or more electrical components of the computer systems in a higher-power state from a lower-power state if excess cooling fluid is available.

13. The apparatus of claim 12 , wherein the means for distributing cooling fluid comprises means for distributing the cooling fluid to the computer systems as a function of the heat dissipated by the computer systems.

14. The apparatus of claim 12 , wherein the means for distributing cooling fluid comprises means for distributing the cooling fluid to the computer systems as a function of workload for the computer systems.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 9, 2015
From: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
To: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Reel/Frame 037079/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 15, 2003
From: PATEL, CHANDRAKANT D.; FARKAS, KEITH; JANAKIRAMAN, GOPALAKRISHNAN
To: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Reel/Frame 013882/0258 →
Continuity (1)
Related Publication 20040264124A1 · Dec 30, 2004