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Skylake Overclocking Guide [With Statistics] - Page 223

post #2221 of 11361
I decided to run a real world benchmark of my overclock vs my board's optimized defaults. (how do i set everything to stock on the asus z170-ar?) Optimized defaults set the overclock to between 43and41 depending on the core. Average of 42 I guess. It also set my ram at 2400 instead of 2666. My OC is at 47 on all cores.

I selected 75 raw image files in lightroom and opened as layers in photoshop. Then I timed time for PS to open, images to start loading, and time to complete the task. Results are as follows.

Optimized defaults: 28s to open PS, 11s to load first image, and 333s to finish the task

With my overclock: 24s to open PS, 9.5s to load first image, and 305s to finish the task.

It seems like my overclock gets about a 9% boost in speed in this informal test.
post #2222 of 11361
Quote:
Originally Posted by mandrix View Post

Nothing radical.

Looks pretty nice, comparable to those rated 3000c15@1.35v!
Quote:
Originally Posted by SmokeySiFy View Post

I decided to run a real world benchmark of my overclock vs my board's optimized defaults. (how do i set everything to stock on the asus z170-ar?) Optimized defaults set the overclock to between 43and41 depending on the core. Average of 42 I guess. It also set my ram at 2400 instead of 2666. My OC is at 47 on all cores.

I selected 75 raw image files in lightroom and opened as layers in photoshop. Then I timed time for PS to open, images to start loading, and time to complete the task. Results are as follows.

Optimized defaults: 28s to open PS, 11s to load first image, and 333s to finish the task

With my overclock: 24s to open PS, 9.5s to load first image, and 305s to finish the task.

It seems like my overclock gets about a 9% boost in speed in this informal test.

Defaults will be 2133 RAM. Depending on the motherboard (asus does this) you have to manually change the settings so that it complies with intel stock, otherwise it will turbo all cores instead of 1-2 or override power limits etc. Your clock speed under load with anything more than 1 core should be no higher than 4ghz.
Quote:
Originally Posted by Serandur View Post

Asked this in another thread, but figured I might be more likely to get an answer here:

I'm using a Gigabyte board (Z170X-UD5) and I've got a couple questions about overclocking with it if anyone could answer. I've got my 6700K stable at 4.7 GHz and XMP-enabled DDR4 3000 with 1.4v (Vcore; nothing else changed yet) selected in the BIOS. However, even with the LLC at its highest setting (there are only three: auto, standard, and high), HWInfo records Vcore dips to 1.38-1.392v under load.


Shouldn't there be an LLC setting that actually boosts Vcore a bit higher than what I set in the BIOS?


Also, what's the Gigabyte equivalent of Asus's adaptive voltage mode? Do I just manually enable C-states and EIST instead of leaving them on auto?



Thanks.

You're supposed to have at least a bit of droop, removing it entirely (or getting close to the point where voltage rises under load) is bad. You have those levels on my board (VIII hero) but level 5 or even level 4 (out of 8) is best to use. If you're setting 1.4v and getting a load voltage of about 1.385, that's great. The sensor detecting it won't see tiny voltage changes, it will round up and down a little (so it might say 1.38 when it's just below the threshold to say 1.392)
Edited by Cyro999 - 9/29/15 at 10:13pm
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post #2223 of 11361
Hi all,

Just started tweaking around with my 6700K and Hero board and was curious if CoreTemp is still reliable (newest version I could find was from 2013) and if so is 78 on my hottest core too hot? AI Suite shows my CPU temp never going above mid 60s.
post #2224 of 11361
I find HWinfo64 to be more reliable. Coretemp is getting quite old now.

HWinfo will also give you a lot more voltages/temps from the system, just way better all round.
post #2225 of 11361
I would like to submit my entry, screenshot below



I would like to push higher, but my board seems to have insanely high vdroop. Any time I try for 4.7GHz, even when I input 1.4-1.45v in the BIOS, it never seems to go over about 1.32v, and I BSOD very quickly. As you can see, despite having set vcore to 1.375, it sits around the 1.315-1.325 mark, even on high LLC. Seems to be a fair bit of fluctuation in my voltages as well. Guess I'll wait for a BIOS update before trying to push higher.

Also can't seem to change FCLK settings at all mad.gif

Mobo is Gigabyte Z170X Gaming 5

Thanks!
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post #2226 of 11361
Hey ThunderCleese what are your ambient temps like? I ask because i have similar cooling (silver arrow) ~17c ambients and same vcore in bios, no vdroop problem and i maxed 65c on the same test when encoding with HT on (at the time, that was maybe 50c over ambient). I have excellent case airflow, got a good mount on the cooler, manually set my CPU fans to make sure they're on max when the CPU is loaded like this - but i'm curious of the amount of CPU-to-CPU variance in Skylake with the TIM under the IHS. I think here i likely have 1 or 2 small advantages and then a big lead from ambient temps being ~15c during test while yours are likely to be 5-10c hotter, all in all adding up to peaking ~13c higher on the hottest core

Thanks for posting your experience, seems z170 is a bit hit and miss!
Edited by Cyro999 - 9/29/15 at 11:45pm
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post #2227 of 11361
Quote:
Originally Posted by ThunderCleese View Post

I would like to submit my entry, screenshot below



I would like to push higher, but my board seems to have insanely high vdroop. Any time I try for 4.7GHz, even when I input 1.4-1.45v in the BIOS, it never seems to go over about 1.32v, and I BSOD very quickly. As you can see, despite having set vcore to 1.375, it sits around the 1.315-1.325 mark, even on high LLC. Seems to be a fair bit of fluctuation in my voltages as well. Guess I'll wait for a BIOS update before trying to push higher.

Also can't seem to change FCLK settings at all mad.gif

Mobo is Gigabyte Z170X Gaming 5

Thanks!
The value you're looking at in HWInfo seems to the VID, not the Vcore. They're easy to get mixed up, but look further down the list (below temperatures) to find Vcore.

Quote:
Originally Posted by Cyro999 View Post

Looks pretty nice, comparable to those rated 3000c15@1.35v!
Defaults will be 2133 RAM. Depending on the motherboard (asus does this) you have to manually change the settings so that it complies with intel stock, otherwise it will turbo all cores instead of 1-2 or override power limits etc. Your clock speed under load with anything more than 1 core should be no higher than 4ghz.
You're supposed to have at least a bit of droop, removing it entirely (or getting close to the point where voltage rises under load) is bad. You have those levels on my board (VIII hero) but level 5 or even level 4 (out of 8) is best to use. If you're setting 1.4v and getting a load voltage of about 1.385, that's great. The sensor detecting it won't see tiny voltage changes, it will round up and down a little (so it might say 1.38 when it's just below the threshold to say 1.392)

Why is Vdroop at all desirable? Just curious.


Regardless, I'm fine with it considering just how close it still is to my set Vcore. However, I have a much bigger issue now. No matter if I enable EIST and all C-states, my 6700K's Vcore refuses to decrease at idle (with an overclock) according to HWInfo. mad.gif I cannot find a single guide, post, or review explaining Gigabyte Z170 overclocking that even mentions idle voltage drops and how to get them. I really don't want to go back to offset voltage overclocking.
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post #2228 of 11361
Quote:
Originally Posted by Serandur View Post

The value you're looking at in HWInfo seems to the VID, not the Vcore. They're easy to get mixed up, but look further down the list (below temperatures) to find Vcore.
Why is Vdroop at all desirable? Just curious.


Regardless, I'm fine with it considering just how close it still is to my set Vcore. However, I have a much bigger issue now. No matter if I enable EIST and all C-states, my 6700K's Vcore refuses to decrease at idle (with an overclock) according to HWInfo. mad.gif I cannot find a single guide, post, or review explaining Gigabyte Z170 overclocking that even mentions idle voltage drops and how to get them. I really don't want to go back to offset voltage overclocking.

Bit of a longshot, but do you have Windows High performance on?
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post #2229 of 11361
Quote:
Originally Posted by llantant View Post

Bit of a longshot, but do you have Windows High performance on?

Nope, it's on balanced with a 5% minimum processor state. I'm using the latest BIOS available too.
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post #2230 of 11361
Quote:
Originally Posted by Serandur View Post

Nope, it's on balanced with a 5% minimum processor state.

Ahh. I firgured that you would have already checked biggrin.gif Worth a shot though.

Thats weird with it not downclocking at idle. I have never had a Gigabyte board though.


With my old Asus p8z68-v Pro/gen3 and previous I had to use offset in order to drop voltage. You only used to have offset and manual for OC. Manual would only let the multiplier drop but not the voltage.
Are you using Manaual?

With that I used to OC using offset (most the time +) and adjust LLC accordingly.
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