Intel Intel Core2 Extreme QX6850 HH80562XJ0808M Fiche De Données
Codes de produits
HH80562XJ0808M
Datasheet
77
Thermal Specifications and Design Considerations
The PROCHOT# signal is asserted when a high temperature situation is detected,
regardless of whether Thermal Monitor or Thermal Monitor 2 is enabled.
It should be noted that the Thermal Monitor 2 TCC cannot be activated via the on
demand mode. The Thermal Monitor TCC, however, can be activated through the use of
the on demand mode.
5.2.3
On-Demand Mode
The processor provides an auxiliary mechanism that allows system software to force
the processor to reduce its power consumption. This mechanism is referred to as “On-
Demand” mode and is distinct from the Thermal Monitor feature. On-Demand mode is
intended as a means to reduce system level power consumption. Systems using the
processor must not rely on software usage of this mechanism to limit the processor
temperature.
The processor provides an auxiliary mechanism that allows system software to force
the processor to reduce its power consumption. This mechanism is referred to as “On-
Demand” mode and is distinct from the Thermal Monitor and Thermal Monitor 2
features. On-Demand mode is intended as a means to reduce system level power
consumption. Systems utilizing the Clovertown processor s must not rely on software
usage of this mechanism to limit the processor temperature. If bit 4 of the
IA32_CLOCK_MODULATION MSR is set to a ‘1’, the processor will immediately reduce
its power consumption via modulation (starting and stopping) of the internal core clock,
independent of the processor temperature. When using On-Demand mode, the duty
cycle of the clock modulation is programmable via bits 3:1 of the same
IA32_CLOCK_MODULATION MSR. In On-Demand mode, the duty cycle can be
programmed from 12.5% on/ 87.5% off to 87.5% on/ 12.5% off in 12.5% increments.
On-Demand mode may be used in conjunction with the Thermal Monitor; however, if
Figure 15.
Thermal Monitor 2 Frequency and Voltage Ordering
VID
Frequency
Temperature
T
TM2
f
MAX
f
TM2
VID
VID
TM2
PROCHOT#
Time