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System Cooling Intel® Server Chassis SC5400 5U Kit TPS

22 Revision: 1.0

The figure below shows the airflow characteristics through the Intel® Server Chassis SC5400.

Figure 15. Redundant Chassis Airflow Characteristics

4.4 Fan Control

The fans in the Intel® Server Chassis SC5400 are designed for server boards that support fan

control via a PWM control signal.

4.4.1 Basic Fan Control (All fans)

The front panel of the chassis has an active temperature sensor (i.e., Texas Instruments*

TMP141) connected to the front panel’s bus. Based on this front panel inlet temperature and

processor temperatures, the server board’s firmware will adjust the fan speed.

4.4.2 Additional Fan Control (120mm fans)

Fan control will monitor the temperature of the processors and further reduce the speed of the

120mm fans. This allows the system to provide minimal airflow for when processors and sitting

idle, then ramp fans speeds faster when they are under a heavy load. This will maintain proper

system cooling of all components and peripherals, while minimizing the acoustic noise level.

Refer to the baseboard documentation for additional details on how fan control is implemented.

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Intel SC5400LXI Fiche technique Page 32