6700K high stock voltage/can't lower it in BIOS

[Twigman]

Hiya,

I got an ASUS Sabertooth S last week and thought I'd dabble in some overclocking today. However, my stock voltages are giving me a hard time. Typing this out and with nothing else happening in the background (Windows 10), I've noticed CPU-Z showing a max of just over 1.4v, and HWMonitor a max of 1.453v.

I have tried to lower this in the BIOS (2202) through manual voltage to 1.25v, but it does nothing. I also tried following guides on how to alter/offset the voltage but again, no change.

BIOS Settings and clocks are stock (exception of secure boot = off), cooling is a hyper 212X, stress testing yields a max temp of 60C after 24 hours.

Am I missing something? I don't want a CPU which operates at 1.45v at stock if I can help it...

~

 

[geofelt]

If you selected a bios option such as optimize defaults, you may have inadvertently overclocked.
During a stress test, what multiplier does cpu-Z show?
60c with stress testing strikes me as unusually low.
I suggest you reset all to stock defaults first. Including ram.
Then, leaving all on auto, gradually raise the multiplier.
Stress test with occt or similar, not prime95 or IBT.
At some point when you are comfortable, implement adaptive voltage and speedstep.
That will reduce the multiplier and Vcore when the cpu has little to do.
1.4v at peak loads is ok, but you want to reduce that when not needed.

How high you can oc is determined by your luck in getting a good chip.
As of 5/2016
What percent can get an overclock at a somewhat sane 1.40v Vcore.

I7-6700K
4.9 2%
4.8 17%
4.7 59%
4.6 93%
4.5 100%

 

[Twigman]

CPU-Z shows me a multiplier of 40. I've just been through the BIOS and reset everything to auto. CPU-Z now shows me about 1.26v while using HeavyLoad and rendering a 3d model concurrently. Not sure why manual 1.25v gives me 1.4v but hey. This is much better, thanks.

It seems very comfortable at the minute at 4.6GHz, 1.31-1.33v, 72C so I think I will just let this run for a while and see if I can't push it any higher later. Thank you very much 😀 ~