Technical Product Specification

Intel® Server Boards S4600LH2/T2 TPS
Revision 2.0
169
Help Text:
[300m or less](980ft or less) Optimal near sea level.
[301m-900m](980ft-2950ft) Optimal performance setting at moderate elevation.
[901m-1500m](2950ft-4920ft) Optimal performance setting at high elevation.
[Above 1500m](above 4920ft) Optimal performance setting at the highest elevations.
Comments: This option sets an altitude value in order to choose a Fan Profile that is
optimized for the air density at the current altitude at which the system is installed.
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.
Back to [System Acoustic and Performance Configuration
]
2. Set Fan Profile
Option Values: Performance
Acoustic
Help Text:
[Performance] - Fan control provides primary system cooling before attempting to throttle
memory.
[Acoustic] - The system will favor using throttling of memory over boosting fans to cool the
system if thermal thresholds are met.
Comments: This option allows the user to choose a Fan Profile that is optimized for
maximizing performance or for minimizing acoustic noise.
When Performance is selected, the thermal conditions in the system are controlled by raising fan speed
when necessary to raise cooling performance. This provides cooling without impacting system
performance, but may impact system acoustic performance – fans running faster are typically louder.
The Performance mode is designed to provide sufficient cooling capability covering all kinds of add-in
cards on the market.
When Acoustic is selected, then rather than increasing fan speed for additional cooling, the system will
attempt first to control thermal conditions by throttling memory to reduce heat production. This regulates
the system’s thermal condition without changing the acoustic performance, but throttling memory may
impact system performance. The Acoustic mode offers best acoustic experience and appropriate
cooling capability covering mainstream and majority of the add-in cards.
The BMC only supports enabling a fan profile through the command if that profile is supported on all fan
domains defined for the given system. It is important to configure platform Sensor Data Records
(SDRs) so that all desired fan profiles are supported on each fan domain. If no single profile is
supported across all domains, the BMC, by default, uses profile 0 and does not allow it to be changed.
Back to [System Acoustic and Performance Configuration
]
3. Fan PWM Offset
Option Values: [Entry Field 0 – 100, 0 is default]
Help Text:
Valid Offset 0 - 100. This number is added to the calculated PWM value to increase Fan Speed.
Comments: This is a percentage by which the calculated fan speed will be increased. The
user can apply positive offsets that result in increasing the minimum fan speeds. This feature is valid
when Quiet Fan Idle Mode is at Enabled state.
Back to [System Acoustic and Performance Configuration
]