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Anyone OC 6600K or 6700K on a Gigabyte Z170 board ?

post #1 of 46
Thread Starter 
Hey all,

I am kind of new to overclocking. I know the basics, but the CPU VCore settings on this gigabyte motherboard are driving me nuts. I am pretty sure everyone else in the industry handles this better. I am using Gigabyte Z170X Ultra Gaming, but I believe all their Z170 mobos have the same BIOS. The manual does not have anything at all, like 0, when it comes to VCore section.

My main issue is finding and turning on the "adaptive" mode when it comes to VCore value. Lets say I am able to get a stable 4.4GHz at 1.28ish volts. Now, I want my system to turn down the clock speeds and the VCore when at idle. BIOS won't provide me with a list of possible options for VCore, unlike ASUS. So if someone has done a successful skylake OC on a gigabyte mobo, please share information. It would be very helpful!

Also, I have done some research on EIST and Intel Turbo Boost, both of which are enabled / set to Auto by default. Could someone please explain the difference between these two.

Looking forward to hearing from you, thank you!
post #2 of 46
There should be a setting for VCore that allows Auto/Manual/Offset. You would have set it to Manual to set your voltage. Set it to offset instead. You may also need to play with Additional Turbo Voltage so you can keep your idle voltage as low as possible.
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post #3 of 46
I got a 6600K and i gotta have my volt set at 1.375 to keep 4.4ghz stable =/
post #4 of 46
Thread Starter 
Quote:
Originally Posted by DuckyFilc0 View Post

I got a 6600K and i gotta have my volt set at 1.375 to keep 4.4ghz stable =/

I feel you man, my chip not very good either =/
post #5 of 46
Hey Shaheer123,

I've been fighting my Gigabyte z170x Ultra-Gaming as well. I finally figured it out after some research and trial and error.

I don't believe these boards have adaptive mode, if they do it's not clear that it's in use when configuring for dynamic turbo voltage. I have an i7 6700k running at 4.6ghz (turbo/dynamic).

First thing I did was try a static overclock which I didn't like because the voltage stayed high. This seems unnecessary. I found that the Vcore needs to be set to 'Normal' in order to access the dynamic settings below it in the UEFI. Use pg up or pg dn/+ or - to change the setting to Normal. It's not clear that this is an option, but it's there as long as you use pg/+- keys. Now with the dynamic voltage no longer locked you can set it. I set it high at first which was a mistake, I backed it down to (+.0.005) and gradually increased it until I could boot all the way into Windows at 4.6ghz. I knew from previous testing that 4.7ghz was possible but I didn't like the voltage required or the amount of heat, so I backed down to 4.6ghz. Maintaining 4.6ghz with the dynamic voltage was my goal.

The next thing I noticed was the vcore was all over the place, ranging from .7 to 1.45+. I didn't like this. I found that the 'CPU Vcore Loadline Calibration' setting under 'Advanced Power Settings' needs to be changed. There are 4 options, Auto, Standard, High, Turbo. You need to press pg up or pg dn/+ or - on the keyboard to change this setting(again, it's not clear that this is now to change this setting). I went to Turbo thinking that would lock the voltage it needs to be and not "range" so far. Turns out I was completely wrong, I'm on Standard now which is keeping the upper end of my voltage below 1.39. My core temps touch 75C max at times under 100% load(AIDA64 stress test).

The dynamic voltage will probably need tweaking to be stable under load after setting the load line calibration. Mine did even though I could boot into windows, it needed another +.01 to be stable.

One note about the dynamic voltage(DVID) setting. It's important to increase it slowly. I foolishly assumed that at +0.1 it would dynamically range from normal (1.3v) up to 1.4v. This is not the case. I have it set to +.025 and the voltage goes up to 1.39 dynamically according to CPU-Z although it doesn't sit there for long and is usually around 1.33 to 1.36 which is acceptable to me.

To summarize my settings:

Turbo mode: auto
Turbo clock: 46 (on each core)
Vcore Voltage: Normal
DVID (Dynamic voltage): +.025

Everything seems stable for now. I hope this helps you and anybody else that's having trouble. Gigabyte really needs to get their act together in the UEFI.
Edited by Gargantuan - 9/1/16 at 9:04am
post #6 of 46
Regarding EIST vs Turbo mode. As far as I understand it, EIST is Intel's stepping technology to step down the processor when full speed is not necessary. Turbo mode is extra power for when the processor is under a lot of load and the extra power is needed.

I like to think about it like this:
Eco GHz<<<<EIST<<<<CPU default GHz>>>>Turbo>>>>Turbo GHz

I might be completely wrong here so if somebody knows better, please correct me.
post #7 of 46
Thread Starter 
Quote:
Originally Posted by Gargantuan View Post

Hey Shaheer123,

I've been fighting my Gigabyte z170x Ultra-Gaming as well. I finally figured it out after some research and trial and error.

I don't believe these boards have adaptive mode, if they do it's not clear that it's in use when configuring for dynamic turbo voltage. I have an i7 6700k running at 4.6ghz (turbo/dynamic).

First thing I did was try a static overclock which I didn't like because the voltage stayed high. This seems unnecessary. I found that the Vcore needs to be set to 'Normal' in order to access the dynamic settings below it in the UEFI. Use pg up or pg dn/+ or - to change the setting to Normal. It's not clear that this is an option, but it's there as long as you use pg/+- keys. Now with the dynamic voltage no longer locked you can set it. I set it high at first which was a mistake, I backed it down to (+.0.005) and gradually increased it until I could boot all the way into Windows at 4.6ghz. I knew from previous testing that 4.7ghz was possible but I didn't like the voltage required or the amount of heat, so I backed down to 4.6ghz. Maintaining 4.6ghz with the dynamic voltage was my goal.

The next thing I noticed was the vcore was all over the place, ranging from .7 to 1.45+. I didn't like this. I found that the 'CPU Vcore Loadline Calibration' setting under 'Advanced Power Settings' needs to be changed. There are 4 options, Auto, Standard, High, Turbo. You need to press pg up or pg dn/+ or - on the keyboard to change this setting(again, it's not clear that this is now to change this setting). I went to Turbo thinking that would lock the voltage it needs to be and not "range" so far. Turns out I was completely wrong, I'm on Standard now which is keeping the upper end of my voltage below 1.39. My core temps touch 75C max at times under 100% load(AIDA64 stress test).

The dynamic voltage will probably need tweaking to be stable under load after setting the load line calibration. Mine did even though I could boot into windows, it needed another +.01 to be stable.

One note about the dynamic voltage(DVID) setting. It's important to increase it slowly. I foolishly assumed that at +0.1 it would dynamically range from normal (1.3v) up to 1.4v. This is not the case. I have it set to +.025 and the voltage goes up to 1.39 dynamically according to CPU-Z although it doesn't sit there for long and is usually around 1.33 to 1.36 which is acceptable to me.

To summarize my settings:

Turbo mode: auto
Turbo clock: 46 (on each core)
Vcore Voltage: Normal
DVID (Dynamic voltage): +.025

Everything seems stable for now. I hope this helps you and anybody else that's having trouble. Gigabyte really needs to get their act together in the UEFI.


Very detailed response, thank you so much , really appreciate it!
post #8 of 46
excellent words Gargantuan, literally everything I wanna say.
In my case there's a moment not long after booting into Windows when there's a suddenly demand of voltage and the adaptive mode couldn't keep up for my 4.8GHz causing PC to turn off straight away. And I need +0.01XV offset pushing idle voltage up to prevent this from happening.

Another note is that even with same voltage setting, if u push your OC further (e.g. 4.6 to 4.7) the highest voltage range under load & max voltage would go up as well. Hateful nature of adaptive voltage.
post #9 of 46
I am still looking for the best way to overclock this 6700k. My son has the 6600k and his overclocked to 4.4GHZ running temps of around 60C using an H105. I on the other hand with the 6700k struggle to hit 4.5 and my temps push 70C and often higher. Thought I would try Gargantuan's method and IMHO I think the temps are too high for this method.

Turbo mode: auto
Turbo clock: 46 (on each core) *I would be happy with 45



Vcore Voltage: Normal
DVID (Dynamic voltage): +.025




Max temp 77. Agreed its stable. But my temps are getting a bit hot. I am using the H100i v2.

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post #10 of 46
I've purchased 6600k with Gigabyte Z170x G1 Ultra Gaming MB two days ago. I really like the some of the features, the cpu is great and more importantly very cool using Cooler Master Nepton 120XL, but the UEFI sucks. It's very buggy.
The first thing I did was go into the BIOS and just set my XMP profile, fan profiles and I've set CPU "Upgrade" to 6600k @ 4.4, everything worked right away, no tweaks needed. This option did what you've asked for, it OC'd the CPU, locked the multiplier and set the adaptive voltage, but I thinks it's far from perfect.
The voltage varies depending on the load, 0.something on idle, 1.2ish on daily tasks, 1.31-1.32 when gaming to 1.34-1.35 on stress testing I don't know is that a bad thing for Skylake, on the internet it has very mixed opinions. I don't know if it is too high for this CPU.
For example my CPU VID at stock settings is 1.3 and I think that is too high,for Haswell I thnik it was 1.1 or something.
Correct me if I'm wrong, I think CPU VID is the Voltage the CPU asks, and Core Power is the actual voltage +- 10% from the power delivery of the MB.
I don't think that is necessary in my case to go very high with the OC on this CPU (it is pretty fast for now) and because I don't want to upgrade it in the next 5-6 years.
I hope that it will last for that long, but I want to go crazy with the OC and I want to find a reasonable voltage and frequency (the heat from the CPU isn't an issue, as I've said the cooler does it's job pretty well), also I was wondering, if dynamic voltage is better for OC'd CPU's or fixed one.
I've tested if you set the OC in Easy Tune (Gigabyte's OC Win Utility) it's with a fixed voltage (unless you specify otherwise) and it works at 1.3 CPU VID @ 4.4 just fine, but the core voltage is fixed at 1.28 or so, and because I'm also a beginner the dynamic voltage seems to me a bit of a handful for now. To summarize, how to "measure" what's best OC to lifespan ratio biggrin.gif
Edited by dzivana - 9/4/16 at 12:30am
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