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