Kontron CP3003-SA, Руководство пользователя

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Thermal Considerations CP3003-SA
Page 6 - 4 ID 1052-6929, Rev. 3.0
D R A F T — F O R I N T E R N A L U S E O N L Y
Adaptive Thermal Monitor dynamically selects the appropriate method. uEFI BIOS is not re-
quired to select a specific method as with previous-generation processors supporting Intel®
Thermal Monitor 1 (TM1) and Intel® Thermal Monitor 2 (TM2).
The Adaptive Thermal Monitor does not require any additional hardware, software drivers, or
interrupt handling routines.
6.2.2.1 Frequency/sVID Control
Frequency/sVID Control reduces the processor’s operating frequency (using the core ratio
multiplier) and the input voltage (using serial VID signals). This combination of lower frequency
and VID results in a reduction of the processor power consumption.
Running the processor at the lower frequency and voltage will reduce power consumption and
should allow the processor to cool off. If the processor temperature does not drop below its
maximum operating temperature, a second frequency and voltage transition will take place.
This sequence of temperature checking and Frequency/sVID reduction will continue until either
the minimum frequency has been reached or the processor temperature has dropped below its
maximum operating temperature. If the processor temperature remains above its maximum op-
erating temperature even after the minimum frequency has been reached, then Clock Modula-
tion at that minimum frequency will be initiated.
6.2.2.2 Clock Modulation
Clock Modulation reduces power consumption by rapidly turning the internal processor core
clocks off and on at a duty cycle that should reduce power dissipation (typically a 30-50% duty
cycle).
Once the temperature has dropped below the maximum operating temperature, the TCC goes
inactive and clock modulation ceases.
6.2.3 Catastrophic Cooling Failure Sensor
The Catastrophic Cooling Failure Sensor protects the processor from catastrophic overheating.
The Catastrophic Cooling Failure Sensor threshold is set well above the normal operating tem-
perature to ensure that there are no false trips. The processor will stop all executions when the
junction temperature exceeds approximately 125°C. Once activated, the event remains
latched until the CP3003-SA undergoes a power-on restart (all power off and then on again).
This function cannot be enabled or disabled in the uEFI BIOS. It is always enabled to ensure
that the processor is protected in any event.
Note ...
When the TH LED on the front panel is lit red after boot-up, it indicates that the
processor die temperature is above 105°C.
Note ...
When the TH LED on the front panel is lit red after boot-up, it indicates that the
processor die temperature is above 105°C.
Note ...
When the TH LED on the front panel is blinking red, it indicates that the proces-
sor temperature is above 125°C.