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"Core Temp" - A program for accurate Conroe, Merom and Yonah temperature monitoring

post #1 of 4
Thread Starter 
Nice little program http://www.xtremesystems.org/forums/...light=CoreTemp

Quote:
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
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post #2 of 4
For any vista users CoreTemp doesnt work, you need TAT
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post #3 of 4
Been using that, great program
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post #4 of 4
Thread Starter 
So the ASUS monitoring system that im using is pretty accurate then. Its basically reading the core #2 temp

My System
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CPUMotherboardGraphicsRAM
T5200 Intel 945 Intel Graphics Media Accelerator 950 2GB DDR2 
Hard DriveOptical DriveOSMonitor
WD 160GB SATA Multiformat Double Layer DVD RW Windows Vista Home Premium 15.4" Ultra Bright WXGA TFT/WestingHouse 22" LCD 
KeyboardCaseMouse
Dynex Gateway Dynex 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
T5200 Intel 945 Intel Graphics Media Accelerator 950 2GB DDR2 
Hard DriveOptical DriveOSMonitor
WD 160GB SATA Multiformat Double Layer DVD RW Windows Vista Home Premium 15.4" Ultra Bright WXGA TFT/WestingHouse 22" LCD 
KeyboardCaseMouse
Dynex Gateway Dynex 
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Overclock.net › Forums › Software, Programming and Coding › Other Software › "Core Temp" - A program for accurate Conroe, Merom and Yonah temperature monitoring