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"Core Temp" - A program for accurate Rev F chips' temperature monitoring

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29 Dec 2005
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1,194
This is a new program that lets you monitor Intel's "Core", "Core 2" and all AMD K8 chips' die temperature. 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.
The way this program works is as follows: Intel defines a certain Tjunction/TCaseMax temperature for the processor. In the case of Yonah it is 85C° or 100C°. First of all the program reads from an MSR, detects the Tjunction/TCaseMax temperature. A different MSR contains the temperature data, the data is represented as Delta in C° between current temperature and Tjunction/TCaseMax.
So the actual temperature is calculated like this 'Core Temp = Tjunction/TCaseMax - Delta'
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.

For AMD the value the CPU reports is read and converted into an actual temperature. AMD chips can report temperatures between -49C and 206C

DOWNLOAD IT FROM HERE

http://www.thecoolest.zerobrains.com/forums/viewtopic.php?t=137


i have tried it on my dual core and it seems spot on, it gives me temps for both my cores, and i notice core 1 is higher than the other, which would explain why core 1 always fails prime first

can all he dual core people try this out and see what results it gives you
 
this is the best program i have ever used

for people who are a having a weaker core, or what they belive to be weaker isnt so

i was getting 60c load on core 1 then 40c on core 2

if u run prime watch the core temps, slowly adjust the screws on you heatsink until the temps are close or the same, then u will notice your weak core will run a lot better.

it took me about 10 mins to adjust the heatsink, but its made a big difference. it must be picking the temps off each core, because adjusting the hs changes the temps
 
meaz said:
3700+ @ 2.55GHz 1.35v / speedfan - 51c / core temp - 47c. Strange! it also says my processor is a toledo core but its only a single core 3700+.

3500+ @ 2.90GHz 1.60v / speedfan - 47c / core temp - 55c.

3000+ @ 2.25GHz 1.45v / speedfan - 37c / core temp - 39c

These temps were taken under full folding@home load.

u sure its not a toledo, cause a lot of failed dual cores, bcame 3700s
 
does 1 core always fail prime before the other, mine was the same, run prime then adjust for block until the temps level out, its quite easy to do, ya just have to make small adjustments
 
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