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The Truth about Temperatures and Voltages - Page 54

post #531 of 599
Quote:
Originally Posted by PizzaMan View Post
Ya, but you can't really argue the fact that the chips would have probably lasted longer at slower speeds with lower volts. Can't really test the fact either. All chips are not equal and there's no way of knowing what one chip 'would have' done if not overclocked. Hardware degrades over use. There's no stopping it. Though, we can take measures to help prolong it's life. Stability. It's like good health for your hardware. Gotta keep it stressed and tested regularly under many different exercises to keep it healthily.

In short..... Run MULTIPLE stress test utilities people.

What an epic thread. Been a great learning xp.
Hey, if electromigration is occurring to the same extent in both cases (theoretically), I would not expect a difference in lifespan, personally (assuming the other specifications are within non-critical ranges) . Of course, you can't know to what extent electromigration is occurring directly, but a total absence of BSOD (etc) under hardcore testing, seems to be the best marker of electromigration being at factory stock levels... or so I gather.
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post #532 of 599
Hey if I overclock, put addition volts on it which result in more heat. And the cpu dies prematurely, then theoretically I can justify the upgrade correct?



On a serious note, I have never been one to throw caution to the wind and liked keeping my 24/7 volts and temps within the specs of the data sheets...

I was doing the reading to get a better understanding of a cpu thats already a few years old, and was ran at 3.24 1.45v for at least 1.5 years, its in its second home now and has been running at a mere 2.0 with stock v of 1.32 for the last 1.5 years.... So degradation has not quite taken its toll yet...


I will be getting a much better cooler on it next weekend just to be safe....
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post #533 of 599
Quote:
Originally Posted by 10acjed View Post
Tcase is around 58 - 60 though...... Would like to hear some others thoughts...
How are you measuring Tcase?

If you haven't personally set up a temperature sensor yourself, placed at the center of the IHS as per Intel specification, then you aren't measuring Tcase.
post #534 of 599
Thread Starter 
Quote:
Originally Posted by PizzaMan View Post
Ya, but you can't really argue the fact that the chips would have probably lasted longer at slower speeds with lower volts. Can't really test the fact either. All chips are not equal and there's no way of knowing what one chip 'would have' done if not overclocked. Hardware degrades over use. There's no stopping it. Though, we can take measures to help prolong it's life. Stability. It's like good health for your hardware. Gotta keep it stressed and tested regularly under many different exercises to keep it healthily.

In short..... Run MULTIPLE stress test utilities people.

What an epic thread. Been a great learning xp.
I think the general idea like you said is that we are stretching out the life. I still have an old Pentium II computer at my parent's house that is pushing strong (no overclock/stock heatsink) and that's going on ~13yrs. I'll have to overclock the crap out of this new chip and eventually give it to my parents. If it is still alive in 13yrs, I'll let you know

Quote:
Originally Posted by Clockadile Dundee View Post
Hey, if electromigration is occurring to the same extent in both cases (theoretically), I would not expect a difference in lifespan, personally (assuming the other specifications are within non-critical ranges) . Of course, you can't know to what extent electromigration is occurring directly, but a total absence of BSOD (etc) under hardcore testing, seems to be the best marker of electromigration being at factory stock levels... or so I gather.
Electromigration would be occuring more in an unstable overclock. At stock electromigration would be minimal, and with a stable overclock electromigration would also be minimal. The article that PizzaMan linked a few posts above does a good/basic explanation of how the voltage runs through the CPU and turns on the logic channels. An unstable CPU with too little or too much vcore will cause the logic channel to fail to be turned on (1) so it will stay at (0) thus an error. As long as the vcore is correct, all logic channels should answer correctly (hence mathmatically stress testing) and electromigration can't really occur because the vcore is being used to open the channel.

Electromigration will occur anyway...but very minimally.

Quote:
Originally Posted by 10acjed View Post
Hey if I overclock, put addition volts on it which result in more heat. And the cpu dies prematurely, then theoretically I can justify the upgrade correct?

Absolutely

Quote:
Originally Posted by 10acjed View Post
On a serious note, I have never been one to throw caution to the wind and liked keeping my 24/7 volts and temps within the specs of the data sheets...

I was doing the reading to get a better understanding of a cpu thats already a few years old, and was ran at 3.24 1.45v for at least 1.5 years, its in its second home now and has been running at a mere 2.0 with stock v of 1.32 for the last 1.5 years.... So degradation has not quite taken its toll yet...


I will be getting a much better cooler on it next weekend just to be safe....
As long as it was stable the entire time, I don't think there's anything to even worry about. The stock coolers (while horrible) genereally can keep the chip safe.
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post #535 of 599
Quote:
Originally Posted by µcode View Post
How are you measuring Tcase?

If you haven't personally set up a temperature sensor yourself, placed at the center of the IHS as per Intel specification, then you aren't measuring Tcase.


Both these readings are taken from the cpu sensor... Open up HWMonitor and notice you have both readings, one is CPU (Tcase) the others are core (Tjunction) both readings come from the same on dye sensor....

Unless you put your own sensor on the core, we are all just going by what the cpu tells the software....
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post #536 of 599
Thread Starter 
Quote:
Originally Posted by 10acjed View Post
Both these readings are taken from the cpu sensor... Open up HWMonitor and notice you have both readings, one is CPU (Tcase) the others are core (Tjunction) both readings come from the same on dye sensor....

Unless you put your own sensor on the core, we are all just going by what the cpu tells the software....
The Tcase reported in HWMonitor is an estimate and isn't based on a thermal couple.
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post #537 of 599
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post #538 of 599
Quote from Page 1 "Update: Reportedly, Core i7 CPUs read their TJ Max settings off of the die, but some programs are not yet patched to the settings encoded into the die. The average TJ Max seems to be 100C for the Core i7 line thus far, but please PM me with a screenshot if your i7 seems to be showing a different TJ Max."

Is there some way to tell if your i7 has a TJMax that is not 100C?

I have TJMax set to 100C in RealTemp and I just want to know if it should be set a something else?

Rod
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post #539 of 599
Thread Starter 
Real Temp has been patched to read TJ Max off of the die, but the writer of RealTemp is disputing that what is encoded on the die is actually TJ Max. If a fresh copy of RealTemp says 100C, then I would believe it.
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post #540 of 599
Thanks for the response, I have the latest 3.40 version so I should be okay.
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