i7-7700k Core Voltage at 1.4v, is this normal?

[seph91]

I was running stress test for i7-7700k and it shows me 1.4vcore at 4.6ghz clock speed, is this normal, because I saw some guide, if u want to push it to 4.8ghz keep the Vcore at 1.35v, but mine only 4.6ghz at 1.4v way higher in voltage.Link below shows the image of my stress test while still in effect:-
http://i.imgur.com/NfGJEe4.png
I also noticed prime 95 put this description on main thread notes about Unable to detect some of the hyperthreaded logical CPUs, here is the link for image:- http://i.imgur.com/8fFlGhy.png
what does it even mean?
My spec is:-
Gigabyte Z270X Gaming K5
Intel i7 7700k
Gigabyte GTX 1080 G1
Gskill Ripjaws V DDr4 2800mhz(8x2)
Psu Silverstone ST65F-G
HDD:Seagate barracuda 1TB 7200rpm
SSD Kingston UV 400 240GGB
Cooler ID cooling Frostflow 240L

 

[LORDPrometheus]

W=AxV if your amperage is low your voltage will need to be higher to get the same power. I am not an experienced overclocker however so don't just take my word for it

 

[mrobscura]

if you are running default bios settings or an preset bios oc then theres a good chance its overvolting the cpu. on a side note if you are getting good temp ats 1.4v youre lucky since a lot of 7700ks cant get decent temps at much lower volts. if mine was at 1.4 it would throttle instantly lol.

anyway, go into your bios and set the cpu to 4.5 on all cores and try for 1.2v. stress test it and see how it runs. most can run 4.5 on all cores between 1.2-1.22v so if you need to add a little voltage do so. and then go from there.

 

[seph91]

thank you for the reply, I just noticed I had CPU VCORE Loadline Calibration set to turbo, that's why it gives more volts to my cpu, now its running at 1.35v again.

 

[seph91]

at much lower temperature too, any idea on when should I use my LLC set to turbo? maybe when I want to push it to 4.8ghz?

 

[mrobscura]

im not sure how the setting are labeled in your bios but im guessing turbo is auto llc, and i wouldnt use it at all in your case. if you oc and notice the core voltage dropping(vdroop) under heavy load then set it to one of the llc setting youd think would give it enough voltage and test again, adjusting accordingly, to counteract the droop. or just bump the voltage in general and leave llc off.

but at 1.35v you can either undervolt it at 4.5ghz since it doesnt need that much, or bump the clock up until its no longer stable or temps get to high.

 

[seph91]

I followed this guide btw https://www.joomag.com/magazine/gigabyte-z270-overclocking-guide-gigabyte-200-series-overclocking-guide/0767815001483933769, the bios looks exactly the same like mine, except hes using GA 270X gaming 7

 

[seph91]

source :-http://www.pcgamer.com/gigabyte-publishes-overclocking-guide-to-help-push-kaby-lake-to-5ghz/