i7-4790K pulling 1,3+V with Auto settings

[BCicc]

Hello,

my i7-4790K processor shows excessive voltage utilization with consequent overheating (1,32V, 100°C within seconds running AIDA64 stress test, with aftermarket air cooler, Hyper 212EVO by Cooler Master).

This must qualify for a substitution. I read in other threads that these are to be considered faulty CPU's, although they may pass the tests with Intel utilities.

Normal voltage request from the processor should be 1,2-1,22 V.

[Kevin_M_Intel]

May I know what is the motherboard brand and model?

Kevin M

[BCicc]

Hi Kevin.

Asus Maximus VII Hero, tried latest and previous BIOS release.

Thanks for your attention!

[Kevin_M_Intel]

Thank you for letting me know this information. Please note that the Maximus Vii Hero and most other Z97 systems use aggressively overclocked settings as their default. This means that even if you are not intentionally overclocking, the system is still overclocked.

There are some recommendations you can try. Please check this document:

/docs/DOC-23517 https://communities.intel.com/docs/DOC-23517

Kevin m

[BCicc]

Thanks for the suggestion.

I have read and tried many different threads and solutions, but the behaviour remains the same. The main problem here, aside from high voltages (the 1,3+ I learned are drawn by the CPU in case of heavy duty AVX-based tasks or stress tests) is the extreme overheating, EXACTLY as described in . The user who opened the thread received a new CPU which ran 15-20°C cooler than the one he was trying to troubleshoot.

It is evident to me that there is some sort of fault in assembling some processors, as I believe the problem is in how the thermal interface material between core and IHS is applied, not to mention silicon quality I guess. That's why a lot of people delid these CPUs to gain in heat dissipation efficiency, which is something I don't intend to do; all I require from a top-line (and rather expensive) product is for it to be able to work within specifications delivering the power customers pay for. I have asked Intel Customer Service and, although i was very rapidly answered, it was a bit discouraging to receive an invitation "not to worry" because the CPU has an overheating protection mechanism so it won't be permanently damaged... which is beside the point. The CPU should NOT overheat under normal, non-overclocking conditions.

[Kevin_M_Intel]

If you have tried all troubleshooting steps mentioned in that link, please contact our support center:

http://www.intel.com/p/en_US/support/contactsupport http://www.intel.com/p/en_US/support/contactsupport

Kevin M

[BCicc]

Thanks for the indication.

I have another question to ask you here- the following are screenshots from stress testing at full Auto frequencies and voltages and Intel turbo core settings (44 44 43 42):

You'll notice how steep is the climb in temperature, how it immediately shoots up to 85+.

What I have actually noticed now is that CPUTIN temp (isn't the "external" temperature of the lid?) stays surprisingly low, as if the heat isn't transferring to it, and therefore to the heatspreader. I don't know if that's correct, it could be that the sensor on the motherboard isn't accurate, or maybe again it's completely normal that CPUTIN temperature follows that path. I'm still leaning towards the hypothesis of a bad core-TIM-IHS interface.

Comments on this?

EDIT: I keep reading of people who solved their issues with new chips:

I think I am in the exact same situation... and the only thing that will help is an RMA.

[Kevin_M_Intel]

In this case, if you have tried the troubleshooting steps given before, please feel free to contact our technical support center to work on an RMA for you: http://www.intel.com/p/en_US/support/contactsupport http://www.intel.com/p/en_US/support/contactsupport

[IRoss1]

Hi Kevin, sorry to bother you I had the same problem with my MSI Z97 Gaming 5, 1.3V core with overheating.

I have follow /message/261138# 261138 Re: How best proceed with overheating i7-4790K? and now my temps are fine, btw i have this issue with XTU.

When I change the value of the Turbo Boost Short Power Max to 160W as suggest in the guide, when I reboot my pc XTU put 512 (the max value) is this a bug.

I had to unistall XTU and manage to change the core value and the multiplier via BIOS...

Any suggestion?

Ps. Sorry for my poor english

Thanks

[Ronny_G_Intel]

Hello ivan5150,

Do you still need assistance with this issue?

Can you provide an update?

Thanks,