Intel® Server Board S2600CW Family TPS
Intel® Intelligent Power Node Manager (NM) Support Overview
Revision 2.4
System power control modes include:
SmaRT: Low AC input voltage event; results in a one-time momentary throttle for each
event to the maximum throttle state.
Electrical Protection CLST: High output energy event; results in a throttling hiccup
mode with a fixed maximum throttle time and a fixed throttle release ramp time.
Thermal Protection CLST: High power supply thermal event; results in a throttling
hiccup mode with a fixed maximum throttle time and a fixed throttle release ramp time.
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. Refer to the ME FW EPS for SEL log details.
6.6.1 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.
Note: For additional information on Intel
®
Intelligent Power Node Manager usage and support,
visit the following Intel Website:
http://www.intel.com/content/www/us/en/data-center/data-center-management/node-
manager-general.html?wapkw=node+manager
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