80546KF Datasheet, PDF (104/138 Pages) Intel Corporation – 64-bit Intel Xeon Processor MP with up to 8MB L3 Cache

Thermal Specifications
7.2.8
IA32_TEMPERATURE_TARGET MSR in the processor. The T_CONTROL value that is read from
the IA32_TEMPERATURE_TARGET MSR must be converted from Hexadecimal to Decimal and
added to a base value of 50 ×C.
The value of T_CONTROL may vary from 0x00h to 0x1Eh.
When T_DIODE is above T_CONTROL, then T_CASE must be at or below T_{CASE_MAX} as defined by the
thermal profile (see Figure 7-1 and Table 7-2). Otherwise, the processor temperature can be
maintained at T_CONTROL.
Thermal Diode
The processor incorporates an on-die thermal diode. A thermal sensor located on the processor
package monitors the die temperature of the processor for thermal management/long term die
temperature change purposes. The thermal diode is separate from the Thermal Monitor’s thermal
sensor and cannot be used to predict the behavior of the Thermal Monitor.
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64-bit Intel^® Xeon™ Processor MP with up to 8MB L3 Cache Datasheet