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does voltage kill the cpu?

post #1 of 13
Thread Starter 
my rig will be going under water next week, i have a 2500k that i have right now on a h100 1.47v at 5ghz at 70c and wanted to know if i bump my vcore to lets say 1.6v or 1.7v 24/7 will it degrade if not fry my cpu even if i had the temps under control
    
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post #2 of 13
ah yes..it does
esp with sandy..umm..I wouldn't go over 1.54 for 24/7 ..
Chances are you'll be getting into the red zone with temps before that.
(If you consider the red zone to be Intel's spec)
hmm 70c max under prime @ 1.47 5 ghz? That's pretty good..
Edited by Schmuckley - 9/9/12 at 11:57am
 
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post #3 of 13
Thread Starter 
im at average 70c on prime but i have hit 75c. i do my own style stress testing. prime95 and intel burn puts more stress on the cpu then i ever will. what i do is fold for an hour or so if i get bsod bump up v core by 0.10 till stable then i 3dmark test if get bsod bump vcore. then i do some video encoding if i get bsod i bump vcore. its been 2 weeks since my last bsod and i have been folding for the last 3 days straight.

if i intelburn my chip i know it would hit 85c-95c and i dont wanna risk it if i personally will never stress my cpu that high. want i am wanting to do is hit 5.2-5.5 underwater to help with my folding times but i wanted to know what is a safe vcore underwater or should i stay at max of 1.52v .
    
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post #4 of 13
Even if you freeze your CPU high voltage will kill it. Max recommended for Sandy Bridges is 1.4V (I think), so I wouldn't venture past 1.45 unless you're okay with shaving a year or two off its lifespan.

EDIT - read an article that said 1.52V
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post #5 of 13
Quote:
Originally Posted by Mr357 View Post

Even if you freeze your CPU high voltage will kill it.
In general, no it won't.

But there are certain limits that you cannot exceed even at -190C.
    
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post #6 of 13
Electromigration damage is based on temperature, voltage, and current (load and clock speed). The lower one is, the higher the others can be.

Life time losses from excessive voltage and temperature in particular are exponential.

1.7v is insanely high for 70C, but would probably last quite a long time at -100C.
Quote:
Originally Posted by Mr357 View Post

Even if you freeze your CPU high voltage will kill it. Max recommended for Sandy Bridges is 1.4V (I think), so I wouldn't venture past 1.45 unless you're okay with shaving a year or two off its lifespan.
EDIT - read an article that said 1.52V

1.52v is the top of the VID range, which is silly and inconsistent with the smae 1.52v being the absolute max rating for momentary spikes as well.

Anyway, all official specifications only apply to stock clocks, temps, and voltages.
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post #7 of 13
1.6v and beyond will kill your chip.
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post #8 of 13
Thread Starter 
Quote:
Originally Posted by Blameless View Post

Electromigration damage is based on temperature, voltage, and current (load and clock speed). The lower one is, the higher the others can be.
Life time losses from excessive voltage and temperature in particular are exponential.
1.7v is insanely high for 70C, but would probably last quite a long time at -100C.
1.52v is the top of the VID range, which is silly and inconsistent with the smae 1.52v being the absolute max rating for momentary spikes as well.
Anyway, all official specifications only apply to stock clocks, temps, and voltages.
ok what do you think would be a safe voltage underwater. to be honest i can careless of its life span just need it to last me till haswell comes out. but i dont want to degrade my performance
    
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post #9 of 13
Thread Starter 
Quote:
Originally Posted by driftingforlife View Post

1.6v and beyond will kill your chip.
kill as far as fry or degraded? what voltage do you have your chip at? my water setup will be similar to yours
    
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post #10 of 13
Fry. For the 2500k it was at 1.55v but for 24/7 I would not run beyond 1.52v.
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