Intel S5520HCT Product Specification - Page 84

Platform Management Intel® Server Boards S5520HC, S5500HCV, and S5520HCT TPS platform, but the increased airflow of this operating mode greatly reduces both possible memory throttling from occurring and dynamic fan speed changes based on processor utilization. 4.3.2.3.2 Acoustics Mode With the platform running in Acoustics mode, several platform control algorithm variables are set to ensure acoustic targets are not exceeded for specified Intel platforms. In this mode, the platform is programmed to set the fans at lower speeds when the processor does not require additional cooling due to high utilization/power consumption. Memory throttling is used to ensure memory thermal limits are not exceeded. Note: Fan speed control for a non-Intel chassis, as configured after running the FRUSDR utility and selecting the Non-Intel Chassis option, is limited to only the CPU fans. The BMC only requires the processor thermal sensor data to determine how fast to operate these fans. The remaining system fans will operate at 100% operating limits due to unknown variables associated with the given chassis and its fans. Therefore, regardless of whether the system is configured for Performance Mode or Acoustics Mode, the system fans will always run at 100% operating levels providing for maximum airflow. In this scenario, the Performance and Acoustic mode settings only affect the allowable performance of the memory (higher BW for the Performance mode). 4.4 Intel® Intelligent Power Node Manager Intel® Intelligent Power Node Manager is a platform (system)-level solution that provides the system with a method of monitoring power consumption and thermal output, and adjusting system variables to control those factors. The BMC supports Intel® Intelligent Power Node Manager specification version 1.5. Additionally, the platform must have an Intel® Intelligent Power Node Manager capable Manageability Engine (ME) firmware installed. The BMC firmware implements power-management features based on the Power Management Bus (PMBus) 1.1 Specification. Note: Intelligent Power Node Manager is only available on platforms that support PMBuscompliant power supplies. 4.4.1 Manageability Engine (ME) An embedded ARC controller is within the IOH providing the Intel® Server Platform Services (SPS). The controller is also commonly referred to as the Manageability Engine (ME). The functionality provided by the SPS firmware is different from Intel® Active Management Technology (Intel® AMT) provided by the ME on client platforms. 70 Revision 1.8 Intel order number E39529-013