Intel S2600GZ S2600GZ/GL - Page 72

Intel® Server Board S2600GZ/GL TPS Platform Management Functional Overview  On-board Ethernet Controller Temperature Sensors4, 6  Add-In Intel SAS/IO Module Temperature Sensors4, 6  PSU Thermal Sensor4, 9  CPU VR Temperature Sensors4, 7  DIMM VR Temperature Sensors4, 7  Integrated BMC Temperature Sensor4, 7  Global Aggregate Thermal Margin Sensors 8 Notes: 1. 2. 3. 4. 5. 6. 7. 8. 9. For fan speed control in Intel chassis For fan speed control in 3rd party chassis Temperature margin from throttling threshold Absolute temperature PECI value or margin value On-die sensor On-board sensor Virtual sensor Available only when PSU has PMBus* The following illustration provides a simple model showing the fan speed control structure that implements the resulting fan speeds. Figure 31. Fan Speed Control Process 6.9.3 Memory Thermal Throttling The server board provides support for system thermal management through open loop throttling (OLTT) and closed loop throttling (CLTT) of system memory. Normal system operation uses closed-loop thermal throttling (CLTT) and DIMM temperature monitoring as major factors in overall thermal and acoustics management. In the event that BIOS is unable to configure the system for CLTT, it defaults to open-loop thermal throttling (OLTT). In the OLTT mode, it is assumed that the DIMM temperature sensors are not available for fan speed control. Revision 1.1 59 Intel order number G24881-004