Intel® Server Board S2600CW Platform Management
Intel® Server Board S2600CW Family TPS
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Revision 2.4
In order to support this feature, the BMC FW will derive the air velocity for each fan domain
based on the PWM value being driven for the domain. Since this relationship is dependent on
the chassis configuration, a method must be used which supports this dependency (for
example, through OEM SDR) that establishes a lookup table providing this relationship.
The BIOS will have an embedded lookup table that provides thermal offset values for each
DIMM type, altitude setting, and air velocity range (three ranges of air velocity are supported).
During system boot the BIOS will provide three offset values (corresponding to the three air
velocity ranges) to the BMC for each enabled DIMM. Using this data the BMC FW constructs a
table that maps the offset value corresponding to a given air velocity range for each DIMM.
During runtime the BMC applies an averaging algorithm to determine the target offset value
corresponding to the current air velocity and then the BMC writes this new offset value into
the IMC thermal offset register for the DIMM.
5.3.14.6.5
Autoprofile
Intel server board implements auto-profile feature to
improve upon previous platform
configuration-dependent FSC and maintain competitive acoustics within the market. This
feature is not available for third party customization.
BIOS and BMC will handshake to automatically understand configuration details and
automatically select the optimal fan speed control profile in the BMC.
Customers will only select a performance or an acoustic profile selection from the BIOS menu
for EPSD system and the fan speed control will be optimal for the configuration loaded.
Users can still choose performance or acoustic profile in BIOS setting. Default is acoustic.
Performance option is recommend if customer installed MICs or any other high power add-in
cards (higher than 75W) or PCIe add-in cards which requires excessive cooling.
5.3.14.6.6
ASHRAE Compliance
Auto-profile algorithm will be implemented for PCSD products from this generation. There will
be no manual selection of profiles at different altitudes, but altitude impact will be well
covered by auto-profile.
5.3.14.7
Power Supply Fan Speed Control
This section describes the system level control of the fans internal to the power supply over
the PMBus*. Some, but not all Intel® Server Systems supporting the Intel® Xeon® processor E5-
2600 v3 and v4 product families will require that the power supplies be included in the
system level fan speed control. For any system that requires either of these capabilities, the
power supply must be PMBus*-compliant.
5.3.14.7.1
System Control of Power Supply Fans
Some products require that the BMC control the speed of the power supply fans, as is done
with normal system (chassis) fans, except that the BMC cannot reduce the power supply fan
any lower than the internal power supply control is driving it. For these products the BMC FW
must have the ability to control and monitor the power supply fans through PMBus*
