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Maximus VIII Hero, i5-6600K OC with Adaptive voltage

The_F34R_Channe
Level 7
Firstly, my current OC was accomplished by just these settings:

1 to 4 core ratio: 45
Min. CPU Cache ratio: 41
Max CPU Cache ratio: 41
CPU Core/Cache voltage: Manual
- CPU Core Voltage Override: 1.185v (maybe not enough?)
Maximus Tweak: Mode 1 (did this automatically, unsure what it entails)
CPU Load-line Calibration: Level 5

Before I start this new journey I will gather some basic information here. I would like to OC with Adaptive voltage and have SpeedStep and C-states enabled.

What will I need to tweak, why and when? I see people having changed PCH voltage as well, for example.

I would start by setting 1.350v or 1.375v in the Adaptive voltage area with a 46 MP, cache at 41 or 42, LLC 5 and take it from there: lower the voltage until it doesn't boot. A good temperature is what I'll be looking for.

It's my understanding that Adaptive voltage changes the volts depending on clock speed within a set range?
Asus Z370 Maximus X Hero | Intel Core i7-8700K 4.7GHz | Corsair H105 | G.Skill Trident Z 3333MHz CL16 16GB | Asus GTX 1080 Strix | EVGA SuperNOVA 850 P2 | Crucial MX200 500 GB | 760T | Acer XB270HU 1440p | Windows 10 Pro x64
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The_F34R_Channe
Level 7
A gaming session, albeit a rather short one, one, two hours, with 1.300v adaptive went well, and temps didn't go above 50C.
Asus Z370 Maximus X Hero | Intel Core i7-8700K 4.7GHz | Corsair H105 | G.Skill Trident Z 3333MHz CL16 16GB | Asus GTX 1080 Strix | EVGA SuperNOVA 850 P2 | Crucial MX200 500 GB | 760T | Acer XB270HU 1440p | Windows 10 Pro x64

SinisterDev85
Level 11
Ive also been experimenting with overclocking my 6600k. This is the guide Ive been following mainly https://drive.google.com/file/d/0Bz2VRRbLPrZnMXBnOXRWeVlHcHM/view?pli=1
The skylake cpus seem to have a fairly wide range of voltage needed to maintain stability. I had a bit of trouble getting everything to work smoothly on Adaptive voltage. One thing that's important, that I now know thanks to Menthol is that SVID control has to be on "auto" for Adaptive to work properly . I was wracking my brain trying to figure out why I couldnt make post by following the OC guide.... It was because on my last mobo (z87 Hero 6) Svid was recommended disabled , so I did all my Ocing with it off , but apparently the rules are different on the Z170/Skylake platform.

I have my 6600k running @ 4.6ghz now . My particular cpu needed Adaptive 1.42v to be able to run stable at that setting. Which, if you have a good cpu cooler shouldnt be a problem. Im using a Corsair H110i GT and my idle temps are around 18c and under full load benchmarking hit about 70c at those settings.
ASUS ROG Z790 Apex Encore | i9 14900ks | | G. Skill Trident Z5 8000 | 2x WD SN850x 4gb | Asus Strix RTX 4080 OC| Asus ROG Thor 1200w | Windows 11 Pro

Janne-71
Level 7
Anyway, about overclocking 4.7 GHz seems to need lot more additional voltage...4.6 runs at .128 and 4.7 would probably need 1.4 atleast. I don't think it's worth the extra heat.

It all depends upon the chip aka silicon. My CPU is running 4.7 at 1.30. But yes, even setting 1.45 to achieve 4.8, it has failed me. I'm settled on 4.7 for 24/7
Live your life the way you want, not the way others want!

EasyLover wrote:
It all depends upon the chip aka silicon. My CPU is running 4.7 at 1.30. But yes, even setting 1.45 to achieve 4.8, it has failed me. I'm settled on 4.7 for 24/7

You have 6700 though which has higher clock by default, i have 6600k.

Menthol
Level 14
the average 6700k is probably better silicon than the average 6600k and every cpu has that threshold or wall where it takes much more for very little gain, there is no way around that, 4.6 is a very good overclock on any Skylake, although my 6700k can run 4.8 stable I run it at 4.6 daily mostly because the fans on my AIO run don't have to ramp up as high and my system is much quieter
Stresstest APP only stress's memory for stability and won't stress your CPU, the RealBench benchmark, specifically the second test H.264 video encoding is harder on your CPU than the stress test and can generate higher temps although for a shorter time, still when trying to get the highest overclock that is the test that will freeze or bsod your system in my experience
I don't run hours of stress tests as all you prove is it's stable for that test not what you do on a daily basis, running my daily apps and games, booting every time, waking from sleep without issue every time is what counts to me unless I am running benchmarks and trying for the highest score i can achieve than only stable for that one benchmark is what counts