Technical Product Specification

Intel® Server Chassis SC5600 System Cooling
Revision 1.1
Intel order number E39532-004
23
The following figure shows the airflow characteristics through the Intel
®
Server Chassis
SC5600LX.
Figure 18. Redundant Chassis Airflow Characteristics
4.4 Fan Control
The fans in the Intel
®
Server Chassis SC5600 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 (for example, Texas
Instruments* TMP141) connected to the front panel’s bus. The server board firmware adjusts
the fan speed based on the front panel inlet temperature and processor temperatures.
4.4.2 Additional Fan Control (120 mm fans)
Fan control will monitor the temperature of the processors and further reduce the speed of the
120-mm fans. This allows the system to provide minimal airflow for when processors are sitting
idle then ramp fan speeds up when they are under a heavy load. This maintains 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.