Intel E7210 LF80564QH0568M Data Sheet

110

Document Number: 318080-002

Prior to a power on RESET# and during RESET# assertion, PECI is not guaranteed to 
provide reliable thermal data. System designs should implement a default power-on 
condition that ensures proper processor operation during the time frame when reliable 
data is not available via PECI.

To protect platforms from potential operational or safety issues due to an abnormal 
condition on PECI, the Host controller should take action to protect the system from 
possible damaging states. If the Host controller cannot complete a valid PECI 
transactions of GetTemp0() with a given PECI device over 3 consecutive failed 
transactions or a one second max specified interval, then it should take appropriate 
actions to protect the corresponding device and/or other system components from 
overheating. The host controller may also implement an alert to software in the event 
of a critical or continuous fault condition. 

The error codes supported for the processor GetTemp0() and GetTemp1() commands 
are listed in 

 below:

0x8000

General sensor error

0x8002

Sensor is operational, but has detected a temperature below its operational range 

(underflow), currently 30

o

C absolute temperature.