What are the max recommended (VCore) voltages for overclocking the latest i5/i7 generation processors? Stability and longetivity is the first.

VMajd · ‎01-23-2017

Hey Guys,

I would like to ask about the maximum recommended voltages for overclocking K-CPUs. I have found this question

but an answear there is just that "automatic response" style with no real information granted as we already know

a) Intel does not cover it with "Intel warranty"

b) OC is not recommended by Intel at all,

but lets get through this and get to the numbers, which vary from forum to forum and personally I had no luck finding this information anywhere on the the Intel website even I feel there was this information before (in datasheet or something...).

Back in the days, it has been said to avoid higher voltages, than 1,3V on i5s and 1,35V on i7s. Has something changed? If so, how?

As stated - I am interested in the voltages for every-day usage, not chasing the highest benchmark numbers.

Personally, I am really interested in the numbers for a few of the latest generations - Haswell Refresh, Haswell-E, Skylake and Kaby Lake.

Thank you, all, in an advance.

idata · ‎01-23-2017

Hello dropadred:

In regard to your question, the thing is that even though you have the option to perform overclocking on the processor, Intel does not provide support or instructions about how to do it and what is the maximum recommended voltages for overclocking, let me apologize for that, we actually recommend to use the processor at stock configurations.

Now, in regards to the Intel® i5-6600K processor, I will do some research in the documentation we have about that processor in order to find out if it shows the different Vcore values the processor can reach or supports.

As soon as I get any details from the research I will post all the information on this thread.

Also, I will look for that same information for Haswell Refresh, Haswell-E, Skylake and Kaby Lake processors, just one question, are there any specific models that you are interested in?

Any further questions, please let me know.

Regards

VMajd · ‎01-26-2017

I see and thank you for your willingness, I am looking forward for the results of the research.

Speaking of other CPUs, I am really interested in all unlocked CPUs as it would be a wonderful information for everyone using pretty much any of these CPUs.

It would give a good overview for anyone willing to overclock even knowing their warranty would be voided in case of issues and even in the case of some serious OC failure.

idata · ‎01-26-2017

Hello dropadred:

You are welcome.

Thank you very much for letting us know that information.

In regard to the unlocked processors, on the following link you will be able to see the list from the different processor families that you requested: Haswell, Haswell E, Skylake and Kaby Lake:

http://ark.intel.com/compare/82932,75048,75123,88191,88195,97527,97144,97129 http://ark.intel.com/compare/82932,75048,75123,88191,88195,97527,97144,97129

Kaby Lake:

i7-7700K

i3-7350K

i5-7600K

Skylake:

i7-6700K

i5-6600K

Haswell E:

i7-5820K

Haswell:

i7-4770K

i5-4670K

On the following link you will be able to see the data sheet for the Intel® Sky Lake i7-6xxxK processors, where you will be able to see information about the voltages for that family, please check pages 39, 42, 44, 45, 52, 53, 54, 55, besides those pages you will be able to find more information about voltages on that document, please let me know if that is the information you were looking for:

Data sheet 1:

http://www.intel.com/content/www/us/en/processors/core/core-i7-6xxx-lga2011-v3-datasheet-vol-1.html http://www.intel.com/content/www/us/en/processors/core/core-i7-6xxx-lga2011-v3-datasheet-vol-1.html

Data sheet 2, there is not much information about voltages, but this is for you to have the complete data sheet document:

http://www.intel.com/content/www/us/en/processors/core/core-i7-6xxx-lga2011-v3-datasheet-vol-2.html http://www.intel.com/content/www/us/en/processors/core/core-i7-6xxx-lga2011-v3-datasheet-vol-2.html

In regard to the other families, I will start an investigation in order to get those same documents for the rest of them.

Any further questions, please let me know.

Regards

Alberto

VMajd · ‎01-26-2017

Thank you for an answer, Alberto; unfortunately, what we seek is the Vcore and unfortunately I have not found it in the datasheets and I had checked even some other datasheets here

http://www.intel.com/content/www/us/en/processors/core/core-technical-resources.html Intel® Core™ Processors Technical Resources .

Regards,

Viktor

idata · ‎01-30-2017

Hello:

I just wanted to let you know that I just received the results from our investigation about this matter, and the thing is that the information in regard to the voltages for overclocking the processors is not available, there is no documentation or archives with the information you requested.

Let me apologize for any inconvenience.

However, on the following links you will be able to see some information about voltages for the unlocked processors for Haswell Refresh, Haswell-E, Skylake and Kaby Lake:

i7-7700K

i3-7350K

i5-7600K

http://www.intel.com/content/www/us/en/processors/core/7th-gen-core-family-desktop-s-processor-lines-datasheet-vol-1.html http://www.intel.com/content/www/us/en/processors/core/7th-gen-core-family-desktop-s-processor-lines-datasheet-vol-1.html

i7-6700K

i5-6600K

http://www.intel.com/content/www/us/en/processors/core/desktop-6th-gen-core-family-datasheet-vol-1.html http://www.intel.com/content/www/us/en/processors/core/desktop-6th-gen-core-family-datasheet-vol-1.html

i7-5820K

http://www.intel.com/content/www/us/en/processors/core/core-i7-lga2011-3-datasheet-vol-1.html http://www.intel.com/content/www/us/en/processors/core/core-i7-lga2011-3-datasheet-vol-1.html

i7-4770K

i5-4670K

http://www.intel.com/content/www/us/en/processors/core/4th-gen-core-family-desktop-vol-1-datasheet.html http://www.intel.com/content/www/us/en/processors/core/4th-gen-core-family-desktop-vol-1-datasheet.html

Besides that information, as an option, the following link is in reference to a forum related to overclocking, in there you will get further peer's assistance and you might be able to get the information you need in there:

https://forums.anandtech.com/forums/cpus-and-overclocking.5/ https://forums.anandtech.com/forums/cpus-and-overclocking.5/

NOTE: These links are being offered for your convenience and should not be viewed as an endorsement by Intel of the content, products, or services offered there.

Any further questions, please let me know.

Regards

Alberto

VMajd · ‎01-31-2017

Thank you, Alberto, for your effort in this matter. I will mark your post as the right answer.

idata · ‎01-31-2017

Hello dropadred:

You are welcome.

Thank you very much for providing those comments, we did our best in order to provide the information you requested.

Any other inquiry, do not hesitate in contact us again.

Regards

Alberto

DCort1 · ‎09-01-2017

Hopefully this doesn't count as a necro: I was wondering if you could clarify what "long term reliability" means in §7.2.1. Can it be assured that if I run one of these CPUs at a constant (turbo and power saving modes off) 1.50v for 5 years, the CPU will remain stable at the end of that period? (suppose a metric of 1 hour of Prime95 without crashing or freezing, and powered on 10 hours/day). This is merely an example; I'm not going to be pushing a constant 1.50v for 5 years straight.

idata · ‎09-01-2017

Coretz: In regard to your question, we recommend to use the processor and the PC with the default BIOS settings at stock configuration, that way you can make sure you are not forcing the processor to run at values it does not support so it should be stable at the end of that period. The Intel processors were tested under extreme conditions in order to confirm the long term reliability.

Regards,

Alberto R

DCort1 · ‎09-03-2017

The documentation says that up to 1.52v is supported, and I wanted to know if 10 hours/day constant full load at 1.50v can be expected to be maintained for 5 years. Your response mostly avoids answering my inquiry, though implies a "yes" with the "extreme conditions" statement. That said, I see that Mean Time Between Failures is "not public information", which would perfectly answer my question. Could you go ahead and pm me the MTBF for the Core i7-7800X ?

Thank you for responding, by the way. I don't mean to sound confrontational, just merely provided feedback.

idata · ‎09-06-2017

dropadred: I sent you a private message, please check your inbox.

Any questions, please let me know.

Regards,

Alberto R

idata · ‎10-04-2017

dropadred: I sent you a private message, please check your inbox.

Any questions, please let me know.

Regards,

Alberto R

VMajd · ‎10-04-2017

Hi Alberto,

You have probably confused me with Coretz, who continued the topic with his own questions.

BR,

Viktor

idata · ‎10-05-2017

Hi dropadred: Yes, let me apologize for that.

Regards,

Alberto R

idata · ‎10-05-2017

Coretz: I sent you a private message. Please check your inbox.

Any questions, please let me know.

Regards,

Alberto R