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if they turbo-boost up to 3.7 then they must be good overclockers! any ideas on how high you get the new I5 2500?
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how high can I5 2500 sandy bridge clock on air?
- Thread starter Freddie589
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There are 4.6Ghz bundles available and that is probably getting near the limit of most of these chips on air with a reasonable cooler.
Some may go a little bit higher with more tweaking and better cooling.
Some may go a little bit higher with more tweaking and better cooling.
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any idea of the clocks on these things under water :O they sound like beasts
Soldato
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I just heard other company do the bundles i7 2500K overclocked 3.4Ghz @ 4.9Ghz but I cannot comment the company name due the forum rules. As 4.9Ghz is crazy nut!
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I would be a bit wary of running 4.9Ghz 24/7. That must be right on the limit and I doubt no one knows yet the long term problems that may arise.
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Depends on the guarantee they give I suppose. What is the standard Intel guarantee on the 2600k and does the other supplier match that?
EDIT: Intel's guarantee is 3 years, if the other supplier matches that then I don't see the problem.
Oh, and don't forget these processors only overclock on demand if the default power saving options are left enabled.
Bryan.
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Soldato
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You are presuming that it will run at these high clock speeds and then just die and you can get a new one.
They degrade over time. My q6600 used to run 3.6ghz happily. Every year I lost about 0.1-0.15ghz and now running it over 3ghz is unstable. I'd rather have it running at 4.5ghz and have it not degrade then aim for 4.7ghz which I don't even need and have to replace it sooner.
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I suppose the supplier has thought of that. Unless they have written an exclusion into their T&C's then they will be duty bound to honour their guarantee that the processor will run up 4.9ghz.
If it can't before three years has passed because the chip has degraded then they are either not very scrupulous or they will replace the chip without question.
Lets face it 3 years is a long time for an enthusiast to keep the same chip.
Bryan.
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Where have you read about garanteed chips? Intel have never made any garantees as far as i'm aware but I may be missing something.
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Maybe 'Warranty' is a better word.
Soldato
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No I just read what you said wrong. I thought you were implying that they sell chips that garantee 4.9ghz etc.
They won't know if you overclocked it but my point I orginaly made is that the chips don't tend to die. They just degrade to the point where they barely overclock but you can't rma them becuase they will test it only to its default clock speed and it will be stable at that.
They won't know if you overclocked it but my point I orginaly made is that the chips don't tend to die. They just degrade to the point where they barely overclock but you can't rma them becuase they will test it only to its default clock speed and it will be stable at that.
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Well in that case the supplier will have to state that the proc is running above intel's reccomended specs and that they are not responsible for any degredation that may occur because of the said overclock.
One can assume that the supplier has cherry picked the 2600K's for this particular system and therefore has kept them within Intel's reccomended tolerances as regards voltages.
That being the case I can't see any reason why the chips should degrade, at least not inside Intel's standard warranty period.
However if the supplier has pushed beyond what Intel reccomend good luck to them getting many sales on that setup, that is of course if the buyer reads the small print.
Bryan.
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my SB has done 3.7
on turbo
on turbo
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Pointless discussion, as far as I'm aware, retailers (not suppliers) that offer overclocked bundles don't tend to offer more than a year warranty on them in which case it doesn't matter if your CPU will degrade after that time, they're not responsible for it.
I guess running a chip stable for about a year well beyond recommended voltages is likely achievable with most CPUs thus they're offerings. I also suspect that as soon as they find out the RMA numbers, they will offer much less aggressive bundles as 4.9GHz is pushing it.
Motherboard related? These chips are capable of 5.7GHz using default base clock.
My i5 2500k will do 5ghz at 1.46v and max temp at 100% load 67c using a Noctua NH D-14 CPU Cooler. Mobo is a gigabyte P67A UD4 B3 with F4 bios and 8gigs of 1600mhz ram. Cinebench 11.5 i score 7.80 check it out on youtube
link:
http://www.youtube.com/watch?v=KgP_cEiPb1c
cinebench says cpu is at 3.3ghz but to get a score of 7.80 its obviously running at 5ghz
link:
http://www.youtube.com/watch?v=KgP_cEiPb1c
cinebench says cpu is at 3.3ghz but to get a score of 7.80 its obviously running at 5ghz
Soldato
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Problem with SB chip is that it doesn't matter if your CPU cooler can keep the CPU cool or not, it is more to do with the chip are not too happy with the high voltage, and high voltage will kill the chip over time.
The general agreed safe voltage for vcore for SB is no higher than 1.35-1.38v max.