Dell Products Inc.

Shuttle Inc.

Shih-Tien Cheng

Austin Michael Shelnutt

An information handling system may include a main chassis and a motherboard-less expansion chassis. The main chassis may include a host system motherboard and a first host interconnect card. The motherboard-less expansion chassis may include a second host interconnect card communicatively coupled to the first interconnect card via an external cable having one or more in-band signal channels and one or more sideband signal channels, a first information handling resource configured to communicate data with the host system motherboard via the one or more in-band signal channels, and a second information handling resource configured to communicate control signals with the host system motherboard via the one or more sideband signal channels.

Systems and methods for power and cooling control of expansion chassis using host interface card sideband signals

A method and apparatus for measuring the temperature of a computer system provides a first temperature sensor, positioned around or on a CPU, for sensing the temperature of the CPU or around the CPU. A first A/D converter is used to convert the temperature sensed by the first temperature sensor into a first temperature value. At least one second temperature sensor, positioned inside the housing, senses the temperature around the housing. At least one second A/D converter converts the temperature sensed by die second temperature sensor into a second temperature value. The first temperature value and second temperature value are input to a control circuit, and a suitable value to output a control signal for controlling the speed of the fan is chosen so as to precede the heat dissipating of the computer system.

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Taipei, Taiwan

Shih-Tien Cheng