Intel i7-3612QM AV8063801130704 User Manual
Product codes
AV8063801130704
Thermal Management
74
Datasheet, Volume 1
The temperature at which the Adaptive Thermal Monitor activates the thermal control
circuit is factory calibrated and is not user configurable. The default value is software
visible in the TEMPERATURE_TARGET (1A2h) MSR, bits 23:16. The Adaptive Thermal
Monitor does not require any additional hardware, software drivers, or interrupt
handling routines. The Adaptive Thermal Monitor is not intended as a mechanism to
maintain processor TDP. The system design should provide a thermal solution that can
maintain TDP within its intended usage range.
circuit is factory calibrated and is not user configurable. The default value is software
visible in the TEMPERATURE_TARGET (1A2h) MSR, bits 23:16. The Adaptive Thermal
Monitor does not require any additional hardware, software drivers, or interrupt
handling routines. The Adaptive Thermal Monitor is not intended as a mechanism to
maintain processor TDP. The system design should provide a thermal solution that can
maintain TDP within its intended usage range.
Note:
Adaptive Thermal Monitor protection is always enabled.
5.6.1.1
TCC Activation Offset
TCC Activation Offset can be used to activate the TCC at temperatures lower than
T
T
J,max
. It is the preferred thermal protection mechanism for Intel Turbo Boost operation
since ACPI passive throttling states will pull the processor out of Turbo mode operation
when triggered. An offset (in degrees Celsius) can b e written
to=[]\TEMPERATURE_TARGET (1A2h) MSR, bits 27:24. This value will be subtracted
from the value found in bits 23:16. The default offset is 0 °C, where throttling will occur
at T
when triggered. An offset (in degrees Celsius) can b e written
to=[]\TEMPERATURE_TARGET (1A2h) MSR, bits 27:24. This value will be subtracted
from the value found in bits 23:16. The default offset is 0 °C, where throttling will occur
at T
J,max
. The offset should be set lower than any other protection such as ACPI _PSV
trip points.
5.6.1.2
Frequency/Voltage Control
Upon TCC activation, the processor core attempts to dynamically reduce processor core
power by lowering the frequency and voltage operating point. The operating points are
automatically calculated by the processor core itself and do not require the BIOS to
program them as with previous generations of Intel processors. The processor core will
scale the operating points such that:
power by lowering the frequency and voltage operating point. The operating points are
automatically calculated by the processor core itself and do not require the BIOS to
program them as with previous generations of Intel processors. The processor core will
scale the operating points such that:
• The voltage will be optimized according to the temperature, the core bus ratio, and
number of cores in deep C-states.
• The core power and temperature are reduced while minimizing performance
degradation.
Once the temperature has dropped below the maximum operating temperature,
operating frequency and voltage transition will go back to the normal system operating
point. This is illustrated in
operating frequency and voltage transition will go back to the normal system operating
point. This is illustrated in