Technical Product Specification

Environmental Limits Specification Intel
®
Server Board S2600WP TPS
9.1.6
Thermal Sensor Input for Fan Speed Control
The BMC uses various IPMI sensors as inputs to fan speed control. Some of the sensors are
actual physical sensors and some are “virtual” sensors derived from calculations.
The following IPMI thermal sensors are used as input to fan speed control:
 Front Panel Temperature Sensor
1
 Server board Temperature Sensor
2
 Processor Margin Sensors
3, 5, 6
 DIMM Thermal Margin Sensors
3, 5
 Exit Air Temperature Sensor
1, 4, 8
 Chipset Temperature Sensor
4, 6
 On-board Ethernet Controller Temperature Sensors
4, 6
 Add-In Intel
®
SAS/IO Module Temperature Sensors
4, 6
 Power Supply Thermal Sensor
4, 9
 Processor VR Temperature Sensors
4, 7
 DIMM VR Temperature Sensors
4, 7
 BMC Temperature Sensor
4, 7
 Global Aggregate Thermal Margin Sensors
8
Notes:
1. For fan speed control in Intel
®
chassis
2. For fan speed control in 3rd party chassis
3. Temperature margin from throttling threshold
4. Absolute temperature
5. PECI value or margin value
6. On-die sensor
7. On-board sensor
8. Virtual sensor
9. Available only when PSU has PMBus*
The following diagram illustrates the fan speed control structure:
Figure 58. Fan Speed Control Structure
Intel order number G44057-007 Revision 1.6
168