Will my 2500k really go pop?

tintin82

tintin82

tintin82

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Hi guys,

I have a great water cooling setup, but a dog of a 2500k.

Running at 4.6 needs 1.42v which is my 24/7
4.8 needs 1.5v
5.0 needs 1.62v

Temps at 5ghz dont go above about low 80s. So question is, if i keep it cool can i run at 5ghz 24/7? Do these chips really degrade and go pop if kept cool? Many people destroyed their chips this way? Just here about degradation and chips going pop and would like some evidence?
 
you can get away with high voltages if you keep things cool... by cool I mean 60's... if you are running 1.6 AND 80C+ then yes I'd say you are probably on a hiding to degradation

I personally have not had a sandy go pop, but then I've not run one at 1.6V+ either!
 
Just run it at whatever clock is safe with 1.4v. Afew mhz make no difference when gaming etc.
 
I've never run a chip above it's specified voltage limits. Unless you have it on liquid nitrogen I would just lower it to 4.5GHz at lowest possible voltage, simply because it's lower voltage and I wouldn't notice the 100MHz missing. I favour temps over clocks because I can't afford £170 because I put too much voltage into something. :P
 
My old wolfdale suffered from electromigration due to high volts. Don't know if Sandy suffers the same issue, but the result is a need for higher and higher volts to maintain the same clocks stably. I doubt it would go pop, but you might encounter degradation issues like that. 4.6GHz is fine unless you are really really pushing the limits of your chip. In fact, 4.6GHz is silly fast in the grand scheme of things.
 
Any IC will suffer from electromigration (was just reading up, very interesting) and the smaller the process the bigger the risk. I personally wouldn't run a chip above the recommended volts.

However tintin82 if you do run it at 1.6 it will probably last a good while, but if it dies please let us know ;)
 
Do you not think that overclocking and manufacturer recommendations are diametrically opposed ideas? I mean the manufacturer is going to play on the safe side with what it recommends to the lowest common denominator. Having said which overclocking and worrying about chip life/integrity is another diametrically opposing statement. You overclockers are a funny bunch.
 
tintin82 said:
Thanks andybird,
Should have mentioned, temps in 80's with IBT max, regular use mid-high 60's at 5.0ghz
Click to expand...

I mean 60 with IBT (e.g. very good watercooling)... 1.6V with an air cooler is asking for trouble
I wouldn't run more than 1.4 on air personally and even 1.5v would be my desirable max on water

but if you are happy to be the guinea pig and find out how long a 2500k can last on 1.6v then be my guest :D

edit; re-read your OP and seen you do have water cooling - I would still recommend keeping it under 1.5v / 60C~ on full load (e.g. IBT) if you expect it to last more than 1-2 years
80C on water is :eek:
 
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When I OC I dont see the point in trying to push to the outer limits. Unless of course your in a comp. I would never go higher then what the stated ''safe'' limit is i like my Xeon cpus way to much to fry them
 
drmoonshine said:
When I OC I dont see the point in trying to push to the outer limits. Unless of course your in a comp. I would never go higher then what the stated ''safe'' limit is i like my Xeon cpus way to much to fry them
Click to expand...

I've just double checked and the intel spec sheet for 2500k says max 1.52V and 72C

the problem with these figures is that 1.52V is the absolute voltage - software has habit of reading lower than real so unless you want to get your volt meter out I'd suggest 1.45V as a software maximum

for temp there are 2 sides of the argument - one is that tjcase is usually lower than actual CPU temp, so you can go higher than this, but the other side is that the onboard temp diode is not very accurate so it may already be hotter than it is reading...

running higher than intels specs you will be shortening the life of the CPU but by how much is anyones guess, you can increase one as long as you keep the other low (hence why I say that you can increase voltage if you keep temp really low even at full load)
 
1.52V isn't max Vcore, it's the maximum value the VID register can hold. The only comparable safe Vcore for 32nm that Intel give is 1.4V for SB-E.
 
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