Specifications

Platform Management Intel® Server Board S3420GPRX TPS

Revision 1.1

Intel order number E92065-001

The Set Fan Profile BIOS option is hidden when CLTT is selected as the THROTTLING MODE

option.

4.4.2.3.1 Performance Mode (Default)

With the plat

form running in Performance mode (Default), several platform controlled algorithm

variables are set to enhance the platform’s capability of operating at maximum performance

targets for the given system. In doing so, the platform is programmed with higher fan speeds at

lower ambient temperatures. This results in a louder acoustic level than targeted, for the given

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.

4.4.2.3.2 Acoustics Mode

With the plat

form running in Acoustics mode, several platform control algorithm variables are set

to make sure that 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 the fans can be operated. 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).