Technical Product Specification

Thermal Management IntelP
®
P Server System R1000JP Family TPS
4.2 Thermal Management Overview
In order to maintain the necessary airflow within the system, all of the previously listed
components and top cover need to be properly installed. For best system performance, the
external ambient temperature should remain below 35ºC and all system fans should be
operational. The system is designed for fan redundancy when the system is configured with two
power supplies. Should a single system fan fail (System fan or Power Supply Fan), integrated
platform management will: change the state of the System Status LED to flashing Green, report
an error to the system event log, and automatically adjust fan speeds as needed to maintain
system temperatures below maximum thermal limits.
Note: All system fans are controlled independent of each other. The fan control system may
adjust fan speeds for different fans based on increasing/decreasing temperatures in different
thermal zones within the chassis.
In the event that system thermals should continue to increase with the system fans operating at
their maximum speed, platform management may begin to throttle bandwidth of either the
memory subsystem or the processors or both, in order to keep components from overheating
and keep the system operational. Throttling of these sub-systems will continue until system
thermals are reduced below preprogrammed limits.
Should system temperatures increase to a point beyond the maximum thermal limits, the
system will shut down, the System Status LED will change to a solid Amber state, and the event
will be logged to the system event log.
Note: Sensor data records (SDRs) for any given system configuration must be loaded by the
system integrator for proper thermal management of the system. SDRs are loaded using the
FRUSDR utility.
An intelligent Fan Speed Control (FSC) and thermal management technology (mechanism) is
used to maintain comprehensive thermal protection, deliver the best system acoustics, and fan
power efficiency. Options in <F2> BIOS Setup (BIOS > Advanced > System Acoustic and
Performance Configuration) allow for parameter adjustments based on the actual system
configuration and usage. Refer to the following sections for a description of each setting.
4.2.1 Set Throttling Mode
This option is used to select the desired memory thermal throttling mechanism. Available
settings include:
[Auto], [DCLTT], [SCLTT], and [SOLTT].
[Auto] – Factory Default Setting - BIOS automatically detects and identifies the appropriate
thermal throttling mechanism based on the DIMM type, airflow input, and 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.
Revision 1.7
Intel order number: G71652-008
36