Datasheet

Platform Management Functional Overview Intel
®
Server Board S2400GP TPS
Revision 1.01
Intel order number G50295-002
68
6.11.6 Quiet Fan Idle Mode
This feature can be [Enabled] or [Disabled]. If enabled, the fan will either stopped or shift to a
lower speed when the aggregate sensor temperatures are satisfied indicating the system is at
ideal thermal/light loading conditions. When the aggregate sensor temperatures not satisfied,
the fan will shift back to normal control curves. If disabled, the fan will never stopped or shift into
lower fan speed whatever the aggregate sensor temperatures are satisfied or not. The default
setting is [Disabled]
Note:
1. The above features may or may not be in effective depends on the actual thermal
characters of a specific system.
2. Refer to the Intel server system TPS for the board in Intel chassis thermal and acoustic
management
3. Refer to Fan Control Whitepaper for the board in 3rd party chassis fan speed control
customization
6.11.7 Fan Profiles
The server system supports multiple fan control profiles to support acoustic targets and
American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE)
compliance. The BIOS Setup utility can be used to choose between meeting the target acoustic
level or enhanced system performance. This is accomplished through fan profiles.
The BMC supports eight fan profiles, numbered from 0 to 7.
Table 17. Fan Profiles
Type
Profile
Details
OLTT
0
Acoustic, 300M altitude
OLTT
1
Performance, 300M altitude
OLTT
2
Acoustic, 900M altitude
OLTT
3
Performance, 900M altitude
OLTT
4
Acoustic, 1500M altitude
OLTT
5
Performance, 1500M altitude
OLTT
6
Acoustic, 3000M altitude
OLTT
7
Performance, 3000M altitude
CLTT
0
300M altitude
CLTT
2
900M altitude
CLTT
4
1500M altitude
CLTT
6
3000M altitude
Each group of profiles allows for varying fan control policies based on the altitude. For a given
altitude, the Tcontrol SDRs associated with an acoustics-optimized profile generate less noise
than the equivalent performance-optimized profile by driving lower fan speeds, and the BIOS
reduces thermal management requirements by configuring more aggressive memory throttling.
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.