I7-6700k voltages too high. PLEASE HELP!!!

AtomicDude66 · Jan 14, 2017

i got a new PSU today, a 800w tacens valevo v, and i decided to test my overclocked cpu (4,5ghz i7 6700k) and i saw that my voltage was dropping from 1.45v (which i now its insanely high for that clock speed) to 0.7v and it kept happening, it also happend a couple of time for my gpu (Sea Hawk 1070) as well,it was droppin from 90-100% power to 50-65%. Althought when i checked HW monitor the voltages didnt seem to go below what they were supposed to (the 12v, 3,3v,5v...).i dont think this was happening b4 with my old psu, uncertified 600w.
And i was wonderin why do i get so big voltages at this small clocks (4,5ghz-4.6ghz im gettin 1.45v). im usin an asus z170a motherboard. is the chipset the problem or what, should i set the voltage to 1.35v my self? i really dont know what to do with. please help

AtomicDude66 · Jan 14, 2017

also at stock speeds (4ghz) when i do the stress test, i no longer get voltage drops but performance drops, from 100% to 20% or so. im using CPU-Z (drops from 8500 to around 3000 while in stress test)

damric · Jan 14, 2017

That CPU is spec'd by Intel to run as high as 1.52v at stock clocks for the worst case highest leakage chips. You do not have a problem.

AtomicDude66 · Jan 14, 2017

damric :

i know that, but some people are runnin 4.6 ghz under 1.3v so i got a bit scared. is it possible to get the massive performance drops only because im running cpuz? cuz i had ran some other benchmarks/stress tests and it was ok (with the stock speeds). or for xmp to set a higher voltage then it is needed

amtseung · Jan 14, 2017

The value that really matters is VCORE. Be sure you aren't reading the wrong thing.

You can manually enter 1.35V and see how far you can push the clock speeds. You may have lost the silicon lottery, in which case, that explains why 1.45V to reach 4.5ghz.

For voltages to randomly halve itself under load... low quality PSU or dying motherboard? EIST/CStates? Vdroop? I wouldn't worry too much about the GPU dropping "power", since for pascal, that "power" measurement isn't quite what we would typically associate with "power". Now if the CPU and GPU drop together, then I'd pay more attention to the power supply.

This is all speculation here. I can't test your computer for you.

AtomicDude66 · Jan 14, 2017

amtseung :

The value that really matters is VCORE. Be sure you aren't reading the wrong thing.

You can manually enter 1.35V and see how far you can push the clock speeds. You may have lost the silicon lottery, in which case, that explains why 1.45V to reach 4.5ghz.

For voltages to randomly halve itself under load... low quality PSU or dying motherboard? EIST/CStates? Vdroop? I wouldn't worry too much about the GPU dropping "power", since for pascal, that "power" measurement isn't quite what we would typically associate with "power". Now if the CPU and GPU drop together, then I'd pay more attention to the power supply.

i dont think the psu is low quality, a lot of guys were givin it good rating. they dont seem to be dropping anymore, i think the voltage drops were because the cpu % performance was dropin, as i said it happend with the stock speeds but the voltage didnt drop.
also i am readin the vcore, im usin cpu-z, corsair link and HWmonitor and all are showing the same thing. im about to stress test the cpu with the voltage set to auto not adaptive cuz adaptive seems to be setting it higher.
and i dont think the mobo is dyin is like 2 months old and everything worked perfectly but the cpu voltages since i got it. in the first weeks, my mobo was settin my cpu voltage on stock speeds at 1.35-.1.4v now with adaptive it doesnt go past 1.2v (stock speeds)

This is all speculation here. I can't test your computer for you.

AtomicDude66 · Jan 14, 2017

i ran the test, the cpu stayed at around 1.36v

AtomicDude66 · Jan 14, 2017

but for some reasons, it goes to higher voltages when its idle (1.42v)

amtseung · Jan 14, 2017

Hmm, I remember a video where Paul's Hardware had a similar issue. I think it was his Kaby Lake versus Skylake video. He gave up and just manually entered the voltages (not offset).

Found the video.

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I7-6700k voltages too high. PLEASE HELP!!!

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