Silicon Graphics Rackable C2108-TY10 User Manual page 102

7: BIOS
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baseline on which the motherboard takes action during different CPU temperature conditions (for
example, by increasing CPU Fan speed, triggering the Overheat Alarm, etc). Since CPUs can have
different 'Temperature Tolerances', the installed CPU can now send information to the
motherboard what its 'Temperature Tolerance' is, and not the other way around. This results in
better CPU thermal management.
The SGI Rackable C2108-TY10 system leverages this feature by assigning a temperature status
to certain thermal conditions in the processor (Low, Medium and High). This makes it easier for
the user to understand the CPU's temperature status, rather than by just simply seeing a
temperature reading (for example, 25 degrees C). The CPU Temperature feature will display the
CPU temperature status as detected by the BIOS:
Low – This level is considered as the 'normal' operating state. The CPU temperature is well below
the CPU 'Temperature Tolerance'. The motherboard fans and CPU will run normally as
configured in the BIOS (Fan Speed Control).
User intervention: No action required.
Medium – The processor is running warmer. This is a 'precautionary' level and generally means
that there may be factors contributing to this condition, but the CPU is still within its normal
operating state and below the CPU 'Temperature Tolerance'. The motherboard fans and CPU will
run normally as configured in the BIOS. The fans may adjust to a faster speed depending on the
Fan Speed Control settings.
User intervention: No action is required. However, consider checking the CPU fans and the
chassis ventilation for blockage.
High – The processor is running hot. This is a 'caution' level since the CPU's 'Temperature
Tolerance' has been reached (or has been exceeded) and may activate an overheat alarm.
User intervention: If the system buzzer and Overheat LED has activated, take action immediately
by checking the system fans, chassis ventilation and room temperature to correct any problems.
Note: The system may shut down if it continues for a long period to prevent damage to the CPU.
The information provided above is for your reference only. For more information on thermal
management, please refer to Intel's web site at www.intel.com.
System Temperature
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