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Windows 7: Sheesh, could it just be my chip? (Temperature)

12 Mar 2013   #11
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Quote   Quote: Originally Posted by Britton30 View Post
Quote:
Tcase: Technically this refers to the temperature that you can measure using a thermocouple embedded in the centre of the heat spreader, but this is only done in the factory by Intel or by users willing to drill their heat spreaders open to insert a thermocouple. Therefore Intel provided a diode between and below the cores with a reading calibrated by the BIOS which can be used instead. This reading can vary greatly when the BIOS version is changed, but will not necessarily change if the BIOS calibrations were not altered between versions.
This is Tcase, not measurable unless the CPU lid is drilled into.
Hum Gary I thought it was measured by the dual diodes as picked up by that HW app. It's a pity there is no real good sound way to measure either it or the Tjunction unless as you say you drill in and embed some thermo devices yourself.
The only way that I can think of is to use one of those rather expensive infra red spot guns but you would have to get very close I suspect.

I did find this but it is only mentioning one diode and I ma left wondering if that means just one core or all cores in mutli core CPU.
http://en.wikipedia.org/wiki/Thermal_diode


Am currently looking for info on how the CPU's are put together brick by brick as it were but it is quite difficult to find any constructional details.


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12 Mar 2013   #12
Britton30
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

According to the temp article you linked, Tjunction is the same as what we call core temp and arrived at with diodes between and under the CPU die. It is all very confusing.
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12 Mar 2013   #13
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Quote   Quote: Originally Posted by Britton30 View Post
According to the temp article you linked, Tjunction is the same as what we call core temp and arrived at with diodes between and under the CPU die. It is all very confusing.
Yep I know mate I found this in the meantime which is a little more simple

http://www.arcticsilver.com/PDF/WhtPr/CalibratingPIII_InternalThermoDiode.pdf
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12 Mar 2013   #14
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

I still suggest you need a base line. Just changing a bunch of things a bunch of times really doesn't tell you much.
Keeping records of the specs including anbient temp, volts, component temps, and over clocks ect. Using the same test in the same fashion and recording the changes will give you the proper information you need.
When you get your computer where you want it you will know what got you there and what didn't.
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12 Mar 2013   #15
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Yep I guess you are right Bear one could go nuts trying to find out the actual meaning of life eh??
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12 Mar 2013   #16
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Do these types of things in methodical fashion and keeping records in my opinion is the only way to do it. When one does a bunch of Hodge Podges things found on the internet you don't even know how you got a BSOD while over clocking.
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12 Mar 2013   #17
essenbe

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

From Core temp FAQ: I can only see a single temperature reading.
AMD processors based on the Phenom and Phenom II (Athlon II, Sempron II, Turion II, etc.) and all of AMD's new CPUs such as the FX and APU series only have a single thermal sensor.
Thus Core Temp will only display a single CPU temperature reading. There is no way of getting a per-core reading on these processors.

What I don't know, is that single diode measuring Tcase or TJ Max? There is a big difference. TJ Max can run 10-15C higher than Tcase. Which is that single temp reading with AMD? I don't know.
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12 Mar 2013   #18
Erick Aguilar

Windows 7 professional X64
 
 

Now.. the question. I believe the temperature I am getting by coretemp to be more adequate after performing tests while gaming and OCCT. BUT in case that I am wrong.

What happens when a chip does exceed it's temperature? I've always believed that if you do it one time it's all over forever. Or is there a moment when the chip will override all settings to protect itself or just BSOD if it gets -too- hot?
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12 Mar 2013   #19
Erick Aguilar

Windows 7 professional X64
 
 

Quote   Quote: Originally Posted by essenbe View Post
From Core temp FAQ: I can only see a single temperature reading.
AMD processors based on the Phenom and Phenom II (Athlon II, Sempron II, Turion II, etc.) and all of AMD's new CPUs such as the FX and APU series only have a single thermal sensor.
Thus Core Temp will only display a single CPU temperature reading. There is no way of getting a per-core reading on these processors.
Yeah, I read that. I also read that at over 45C Coretemp does display the most accurate readings for AMD chips as voice by an AMD representative apparently.

Yesterday I tested the chip with Coretemp and cpu temp respectively. While Cpu temp reached 75, core temp was displaying 67 all night (ran the tests as I slept) No problems or errors. But Im still downclocking until I get a better cooler.
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12 Mar 2013   #20
kbrady1979

Windows 7 Professional 64bit SP1
 
 

Quote   Quote: Originally Posted by Erick Aguilar View Post
Now.. the question. I believe the temperature I am getting by coretemp to be more adequate after performing tests while gaming and OCCT. BUT in case that I am wrong.

What happens when a chip does exceed it's temperature? I've always believed that if you do it one time it's all over forever. Or is there a moment when the chip will override all settings to protect itself or just BSOD if it gets -too- hot?
I know Intel chips will start to throttle their frequency back when they hit their heat threshold, in order to keep the chip from burning itself out. I would assume AMD chips work in a similar fashion.
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 Sheesh, could it just be my chip? (Temperature)




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