Справочник Пользователя для Intel 2 Duo T7200 LE80537GF0414M
Модели
LE80537GF0414M
Errata
Specification Update
93
AH6P
Activation of Intel
®
Adaptive Thermal Monitor While Intel
®
Dynamic
Front Side Bus Frequency Switching Is Active May Lead to an
Incorrect Operating Point Frequency
Problem:
Intel Adaptive Thermal Monitor has the ability to use multiple frequency/voltage
operating points to cool the processor while maintaining a high level of
performance. If Intel Dynamic Front Side Bus Frequency Switching is active, activation
of the Intel Adaptive Thermal Monitor may transition the processor to the correct
operating point voltage, but not frequency.
This may occur if:
operating points to cool the processor while maintaining a high level of
performance. If Intel Dynamic Front Side Bus Frequency Switching is active, activation
of the Intel Adaptive Thermal Monitor may transition the processor to the correct
operating point voltage, but not frequency.
This may occur if:
1.) The software/OS requests to go to a higher performance Enhanced Intel
SpeedStep
SpeedStep
®
Technology operating point during the thermal monitor activation
period.
2.) An entry into C4 state or Intel Enhanced Deeper Sleep interrupts the
transition between the Intel Dynamic Front Side Bus Frequency Switching
frequency and the targeted thermal monitor operating point frequency.
2.) An entry into C4 state or Intel Enhanced Deeper Sleep interrupts the
transition between the Intel Dynamic Front Side Bus Frequency Switching
frequency and the targeted thermal monitor operating point frequency.
Implication: If this erratum occurs, the Intel Dynamic Front Side Bus Frequency Switching
operating point frequency will be observed along with the Intel Adaptive Thermal
Monitor operating point voltage. The performance state status register
(IA32_PERF_STS) will reflect this intermediate performance state. There is no
functional impact; the eventual voltage/frequency selection is a valid operating point.
De-activation of the Intel Adaptive Thermal Monitor will result in the processor
transitioning to the expected Enhanced Intel SpeedStep Technology operating point.
Monitor operating point voltage. The performance state status register
(IA32_PERF_STS) will reflect this intermediate performance state. There is no
functional impact; the eventual voltage/frequency selection is a valid operating point.
De-activation of the Intel Adaptive Thermal Monitor will result in the processor
transitioning to the expected Enhanced Intel SpeedStep Technology operating point.
Workaround: None Identified
Status:
For the affected steppings, see the Summary Tables of Changes