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Is max Vcore dependant on temp (or vice versa)

post #1 of 8
Thread Starter 
What I mean is can I up the vcore to say 1.6 or 1.7 on a i7 2600k if I can keep the temps at around 30 or 40c?

I heard about that electron migration thing... but not sure how it works.

Thanks!
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post #2 of 8
Quote:
Originally Posted by Rognin View Post

What I mean is can I up the vcore to say 1.6 or 1.7 on a i7 2600k if I can keep the temps at around 30 or 40c?
I heard about that electron migration thing... but not sure how it works.
Thanks!

You can, but you'll degrade your cpu very much, it's not recommended for everyday use.

1.52v is the absolutely max for everyday use if you wan't to keep your cpu for more than a year.

And many people say that 1.52v is even too high.
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post #3 of 8
If you crank the voltage high enough you will have electical migration and you can actually burn the CPU out even with the CPU temp being held within the proper temp range. Most folks don't go over 1.5-1.6v even with excellent cooling. It depends on the CPU/trace size.

As an example many people who use liquid nitrogen to perform extreme OC 'ing with voltages in the 1.9-2.0v range, only do it for a few tests and then they use another CPU because the chance of internal damage from the extreme voltage even with extreme cool temps, can potentially damage the CPU traces.
post #4 of 8
1.52v recommeneded max by intel Wudn't suggest going any further
    
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post #5 of 8
The Vcore max is not dependent upon overall cpu temperature, but upon how much voltage can flow through the cpu without burning out parts of it. It'll destroy your cpu if you run it too high for too long, no matter how good your temperatures are
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post #6 of 8
Thread Starter 
I was wondering what those LN2 guys did. So after a acouple benches they put the cpu aside and try another?

Hrmm, so guess I'll stay at 4.7 with 1.464. I'll just have really good temps.

Thanks guys!!
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post #7 of 8
When benching I generally go just a few hours at at time. Get frozen, crank the volts & clocks, get the scores I'm after then shut down till next time. Being colder can help hit the high clocks with a bit less V, & helps slow down degradation but doesn't stop it.
    
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post #8 of 8
Quote:
Originally Posted by Mithrandir8 View Post

The Vcore max is not dependent upon overall cpu temperature, but upon how much voltage can flow through the cpu without burning out parts of it. It'll destroy your cpu if you run it too high for too long, no matter how good your temperatures are

Voltage doesn't move through anything; voltage is electric potential and means absolutely nothing without considering current. The current that goes through your CPU is what ultimately will determine if your CPU will degrade or not.

Temps are related since the higher your temps are the higher the internal resistances will be and since V = I * R, the resultant voltage required to sustain x amount of current flow increases.

Since nothing is a perfect conductor (or resistor), it can be argued that a piece of silicon with traces on it (which is what a CPU is) will degrade no matter how little voltage you put in there. The rate of degradation just reaches hypothetically negligible levels with low enough temperatures and current flow.
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