Datasheet

Intel

Server Board S2400GP TPS Platform Management Functional Overview

Revision 1.01

Intel order number G50295-002

System fan speeds are controlled through pulse width modulation (PWM) signals, which are

driven separately for each domain by integrated PWM hardware. Fan speed is changed by

adjusting the duty cycle, which is the percentage of time the signal is driven high in each pulse

6.11.1 Thermal and Acoustic Management

The S2400GP offers multiple thermal and acoustic management features to maintain

comprehensive thermal protection as well as intelligent fan speed control. The features can be

adjusted in BIOS interface with path BIOS > Advanced > System Acoustic and Performance

Configuration.

This feature refers to enhanced fan management to keep the system optimally cooled while

reducing the amount of noise generated by the system fans. Aggressive acoustics standards

might require a trade-off between fan speed and system performance parameters that

contribute to the cooling requirements, primarily memory bandwidth. The BIOS, BMC, and

SDRs work together to provide control over how this trade-off is determined.

This capability requires the BMC to access temperature sensors on the individual memory

DIMMs. Additionally, closed-loop thermal throttling is only supported with buffered DIMMs.

6.11.2 Setting Throttling Mode

Select the most appropriate memory thermal throttling mechanism for memory sub-system from

[Auto], [DCLTT], [SCLTT] and [SOLTT].

[Auto] – BIOS automatically detect and identify the appropriate thermal throttling mechanism

based on DIMM type, airflow input, DIMM sensor availability.

[DCLTT] – Dynamic Closed Loop Thermal Throttling: for the SOD DIMM with system airflow

input

[SCLTT] – Static Close Loop Thermal Throttling: for the SOD DIMM without system airflow

input

[SOLTT] – Static Open Loop Thermal Throttling: for the DIMMs without sensor on DIMM

(SOD)

The default setting is [Auto]

6.11.3 Altitude

Select the proper altitude that the system is distributed from [300m or less], [301m-900m],

[901m-1500m], [Above 1500m] options. Lower altitude selection can lead to potential thermal

risk. And higher altitude selection provides better cooling but with undesired acoustic and fan

power consumption. If the altitude is known, higher altitude is recommended in order to provide

sufficient cooling. The default setting is [301m – 900m].

6.11.4 Set Fan Profile

[Performance] and [Acoustic] fan profiles are available to select. The Acoustic mode offers best

acoustic experience and appropriate cooling capability covering mainstream and majority of the

add-in cards. Performance mode is designed to provide sufficient cooling capability covering all

kinds of add-in cards on the market. The default setting is [Performance]

6.11.5 Fan PWM Offset

This feature is reserved for manual adjustment to the minimum fan speed curves. The valid

range is from [0 to 100] which stands for 0% to 100% PWM adding to the minimum fan speed.

This feature is valid when Quiet Fan Idle Mode is at Enabled state. The default setting is [0]