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post #45351 of 67713
Quote:
Originally Posted by cssorkinman View Post

If it's truly the voltage that kills, how do you explain guys that put them under LN2 , throw 2 volts through them and when they are done, plop them back in their daily driver without any issue?

Heat will limit the voltage you can run these chips ( in circumstances using "normal" cooling) to a level that doesn't seem to damage them. I've spent time with mine running over 1.7 volts on 8 threaded loads without any hint of damage ( load temps at 30C or so chilled liquid cooling).

Slowly kills.

Who put that chip after 2 volts back to normal use and have it last without problems?
I really like to know.

It will not be instantly killed ofc.
post #45352 of 67713
Quote:
Originally Posted by cssorkinman View Post

Warning: Spoiler! (Click to show)
Quote:
Originally Posted by hawker-gb View Post

Quote:
Originally Posted by hurricane28 View Post

Yep i totally agree with that.

too much voltage or too high temps or any combination of the two are bad for the chip.

Anyone with even the slightest understanding of electronics should understand this.

People differently interpret max "safe" voltage.

There is too cautions ones(myself) which is reluctant to go over 1,45.
Absolutely safe in my opinion is up to 1,45 on max load for FX.

Above 1,5 is certain electron migration to some level.

Above 1,6 is suicide run.biggrin.gif

Also,one must take in consideration current draw which will easily excess more than 150 amps on high overclocks under,for example prime95.
VRM efficiency also drops when they are overheating.

Any stress test is ok on stock or near stock volts.
Much above that, you must really know what you doing and how stuff works.

EDIT: Before someone start patronizing like "show me how many FX die",you will not kill it that moment. You will damage it beyond repair,shorten life span,unstability,etc etc... you already pass point of no return.

Or one can write mail to AMD and ask them which is max voltage for FX. I am sure that answer would be very disapointing to many.

Another example, i can do 4,9 with 1,4 volts but I WILL NOT do the prime test. I can do IBT-AVX for a few runs.
Max test for that OC is transcoding job because it will put biggest load on CPU and no other real life load will exeed it.
With prime95 you put 20-25% more load then biggest RL app can.
10 hours of transcoding and your chip is rock stable.

If it's truly the voltage that kills, how do you explain guys that put them under LN2 , throw 2 volts through them and when they are done, plop them back in their daily driver without any issue?

Heat will limit the voltage you can run these chips ( in circumstances using "normal" cooling) to a level that doesn't seem to damage them. I've spent time with mine running over 1.7 volts on 8 threaded loads without any hint of damage ( load temps at 30C or so chilled liquid cooling).
Look at it like water eroding away at a sandy beach. The more turbulent the water the faster it erodes. So having the water calm 95% of the time with the odd storm(LN2 session) would do less damage than having rough water continuously day after day.
But sometimes if that storm is too rough (too much voltage) The beach is gone. There have been instance of intant chip deat with the FX at 2+ volts
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post #45353 of 67713
Quote:
Originally Posted by hawker-gb View Post

Slowly kills.

Who put that chip after 2 volts back to normal use and have it last without problems?
I really like to know.

It will not be instantly killed ofc.

exactly man you can tell too these chips get/start getting pretty "shaky" approaching thermal max etc I notice it clearly you start hitting 55-60c lol
heat is big part of it/issue
post #45354 of 67713
Quote:
Originally Posted by F3ERS 2 ASH3S View Post

CoreTemp over 85c or socket depending on the board would do the same thing
*how I know: cause I have done many suicide runs on my chip up to and including 1.8V, I want to say that it is Coretemp at 85-86c that it shuts down..

eek.gif Holy vcore Batman!
Quote:
Originally Posted by Johan45 View Post

Look at it like water eroding away at a sandy beach. The more turbulent the water the faster it erodes. So having the water calm 95% of the time with the odd storm(LN2 session) would do less damage than having rough water continuously day after day.

You are very good at providing analogy's. I love this, it makes understanding things very swift and to the point. thumb.gif
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post #45355 of 67713
Quote:
Originally Posted by pshootr View Post

Quote:
Originally Posted by F3ERS 2 ASH3S View Post

CoreTemp over 85c or socket depending on the board would do the same thing
*how I know: cause I have done many suicide runs on my chip up to and including 1.8V, I want to say that it is Coretemp at 85-86c that it shuts down..

eek.gif Holy vcore Batman!
Quote:
Originally Posted by Johan45 View Post

Look at it like water eroding away at a sandy beach. The more turbulent the water the faster it erodes. So having the water calm 95% of the time with the odd storm(LN2 session) would do less damage than having rough water continuously day after day.

You are very good at providing analogy's. I love this, it makes understanding things very swift and to the point. thumb.gif

Thanks pshootr.
That's basically what electron migration is. The voltage slowly eats away at the tiny little transistor walls and will eventually put hole through them and they stop working properly.
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post #45356 of 67713
Woke up, 8 hours of Prime95 Small FFT and still running strong. I guess that means CPU OC is pretty stable so far but the system might not be without checking Blend Test and some other tests.

http://valid.x86.fr/sqsz1w


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post #45357 of 67713
Looks good but you should check your bus speeds. The HT is reporting at 2200 it should be 2600 and NB 2200 for stock setting.
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post #45358 of 67713
Voltage kills CPU because of degrading chip architecture.
Voltage? Voltage is the electric potential difference between two points,tranfering electric charge from point X to point Y,more overvoltage changes chip molecular structure.
No possible way to change this fact.
Every single electrical component dies ater period of time.
post #45359 of 67713
so what does your degradation theory say for the 9590

their Default Vid is quite high...

wonder why AMD would release such a chip....rolleyes.gif

they must know a little more about this topic then you do.. oh wait they do...

not many actually get into a voltage and heat range that will actually damage this Uarch.


you think everyone has super high voltage because you have a new super low leak chip.. nothing special. not the first to tout these numbers.
These chips can handle the voltage because the Uarch can handle the voltage so can the Node..

It is as simple as that.

(not saying degradation and electronic mitigation are not a thing, you are fear mongering about it, where there is absolutely no need. )
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post #45360 of 67713
Quote:
Originally Posted by Johan45 View Post

Looks good but you should check your bus speeds. The HT is reporting at 2200 it should be 2600 and NB 2200 for stock setting.

Thanks. I manually set HT to 2200 because I thought HT wasn't suppose to be running higher than NB or that HT can't run faster than NB speeds. Tell me if I'm thinking of this in the wrong way. After I find my limit with the 8350 I will probably venture into NB OCing Not sure I need to touch the NB or HT unless it will improve my gaming performance as this is my main use of this PC.
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