Technical Product Specification

Intel® Server Board S2600IP and Intel® Workstation Board W2600CR TPS Platform Management Overview
Revision 1.4 Intel order number G34153-004 85
When the SMBAlert# signal is asserted, the fans will be gated by HW for a short period
(~100ms) to reduce overall power consumption. It is expected that the interruption to the fans
will be of short enough duration to avoid false lower threshold crossings for the fan tach sensors;
however, this may need to be comprehended by the fan monitoring FW if it does have this side-
effect.
ME FW will log an event into the SEL to indicate when the system has been throttled by the
SmaRT/CLST power management feature. This is dependent on ME FW support for this sensor.
Please refer ME FW EPS for SEL log details.
4.8.1.4.1 Dependencies on PMBus*-compliant Power Supply Support
The SmaRT/CLST system feature depends on functionality present in the ME NM SKU. This
feature requires power supplies that are compliant with the PMBus Specification, Revision 1.2.
4.9 EU Lot 6 Mode
The European Union has set forth a stringent standby power consumption target for systems
that are used as primary computing devices in office environments. Owing to the fact in office
environments, pedestal servers are being used more and more as workstations and that Value
servers could make their way into Home servers, this solution is being requested for some
pedestal servers. HW support for EU Lot6 will only be available for specific Intel
®
Server
pedestal products.
In order to meet the standby power requirements for EU Lot6 it is necessary to remove power to
the BMC, along with other components, when in the S5 state. As this operational mode impacts
system feature support, the user has the option of enabling and disabling this mode from the
BIOS setup screen utility.
BIOS is responsible for enabling/disabling the system hardware for EU Lot6 operation. It notifies
the BMC of the current state with the OEM command Set EULot6 Mode. The BMC saves the
state in persistent store and uses it to control special EU Lot6 internal processing during boot,
sensor monitoring, and so on as needed.
Wake-on-LAN (WOL) is not supported in EU Lot6 mode.
4.9.1 Impact to System Features
The following system features are lost or impacted when EU Lot6 mode is enabled:
 Increased boot time (~15-20s) when system is DC power cycled.
o This is due to the fact that both the BMC and BIOS are booting at the same time
when the system is powered on (to S0 state). BIOS will need to allow extra time for
the BMC to initialize to the point where it can communicate with BIOS.
Note: Even when EU Lot6 is not enabled and the system is AC cycled, this increased
boot time is applicable if a user immediately attempts to power the system up (for
example, pressing the power button), as in this case both the BMC and BIOS are
booting at the same time.
 No LAN manageability when on standby, and therefore no remote OOB power on by
BMC.