Intel S5500WB12V Product Specification - Page 92
Thermal Sensors
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Design and Environmental Specifications Intel® Server Board S5500WB TPS Table 54. Fan Connector Location & Detail FAN_CPU2 CPU 2 FAN_CPU2A PWM_CPU0 PWM_CPU0 Tach 3 Tach 7 J3E1 J2J2 LED_Fan_Fault_CPU0 LED_Fan_Fault_CPU0A FAN_MEM2 Memory 2 FAN_MEM2R PWM_MEM0 PWM_MEM0 Tach 4 Tach 4 & 8 J2J1 J1D5 LED_Fan_Fault_MEM0 LED_Fan_Fault_MEM0R Figure 29. Fans and Sensors Block Diagram 9.2 Thermal Sensors 9.2.1 Processor PECI Temperature Sensor The processor thermal control uses a CPU PECI thermal sensor, which is a relative temperature off PROCHOT# trip point (a -20C reading means 20C below PROCHOT# trip point temperature). The BMC can get the processor PECI Tcontrol values for each CPU installed to use/follow the clamped algorithm for component thermal sensor. The following sample SDR settings could be used: Use Tcontrol (byte 8, bit 0 = 1): Tcontrol value is provided by BIOS via the Set CPU TControl command for the indicated CPU is used. 78 Revision 1.9 Intel order number E53971-008