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What is Tjunction Temp?

S

Skunt

Limp Gawd
Joined
Sep 8, 2006
Messages
363
On Coretempt, it shows my Tjunction temp at a staggering 85c. Is that normal? My cpu idle temp is 40c.
 
Skunt said:
On Coretempt, it shows my Tjunction temp at a staggering 85c. Is that normal? My cpu idle temp is 40c.
Click to expand...
From Core Temp site:

[font=Arial, sans-serif]Intel defines a certain Tjunction temperature for the processor. In the case of Yonah it is 85C° or 100C°. First of all the program reads from a Model Specific Register (or MSR), and detects the Tjunction temperature. A different MSR contains the temperature data, this data is represented as Delta in C° between current temperature and Tjunction.[/font]

[font=Arial, sans-serif]So the actual temperature is calculated like this 'Core Temp = Tjunction - Delta'[/font]

[font=Arial, sans-serif]The size of the data field is 7 bits. This means a Delta of 0 - 127C° can be reported in theory. But from preliminary tests, the reported temperature doesn't go below 0C°, no matter what kind of cooling was used.
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[/font]
 
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