Predicting cpu temperatrure

[dhRUV2180]

hello,

cpu temperature depends on a.operating frequency b.vcore c.cpu utilization d.cpu case air flow

but i want to know if there exist a model or specific formula relating cpu temp with these parameters

 

[ghnader hsmithot]

i dont really understand what your saying however you could read this to give you a clue on how cpu temps are read.And each software has its own algorithm for reading cpu temps

The temperature readings are very accurate as the data is collected from a Digital Thermal Sensor (or DTS) which is located in each individual processing core, near the hottest part. This sensor is digital, which means it doesn't rely on an external circuit located on the motherboard to report temperature, its value is stored in a special register in the processor so any software can access and read it. This eliminates any inaccuracy that can be caused by external motherboard circuits and sensors and then different types of programs trying to read those sensors.
http://www.alcpu.com/CoreTemp/howitworks.html

 

[dhRUV2180]

i mean to say that do we have any formula based realtionship between cpu core temperature and any of the respective parameters that affect it

 

[ghnader hsmithot]

actually yes.
http://www.techreaction.net/2009/10/14/guide-to-understanding-intel-temperatures/

http://download.intel.com/design/intarch/papers/322683.pdf

 

[dhRUV2180]

i need a mathematical equation for calculating the cpu temperature from ambient temperature and others parameters

 

[ghnader hsmithot]

i need a mathematical equation for calculating the cpu temperature from ambient temperature and others parameters

I think that should depend on the software itself.Realtemp , coretemp temperature monitors each have their own algorithm.

 

[ghnader hsmithot]

This was the best i could find
http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=00076065

http://www.cs.ucr.edu/~marek/pubs/online_thermal.pdf

 

[kajabla]

That could be an interesting stat project, but it would take a ton of data for all the different part combos.