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adampk17
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Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 1:33 pm

Hello TR,

I have a 8086K on a GIGABYTE Z370 AORUS Gaming 7 motherboard with a Corsair H80i V2 cooler and what I would like to do is overclock the processor to 5 GHz on all cores.

From the little research I have done this doesn't seem like a lot to ask of this particular processor as long as you have decent cooling which I believe I can say I do. The issue is that I don't know much at all about overclocking so I am hoping that some one can point me in the direction of an EASY to follow guild for overclocking neophytes. I'm not looking to push my processor to its max, just 5 GHz on all cores.

My reason for wanting to do this is to get the best performance in a particular CPU bound game that I play and to speed up Handbrake encoding that I occasionally do. (I think this means I would rather not overclock so high that I have to tinker with AVX instruction settings?)

I've tried some googling but so far I find guides that are either aimed at hardware dissimilar enough that I don't find it helpful or the guide is aimed at tweaking down to the minute level.

Thank you
Megatron must be stopped, no matter the cost.

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blargh4
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Re: Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 1:46 pm

If you just want to run the single-core max turbo on all cores simultaneously, there's often a one-switch option in the bios, on your motherboard it seems to be called "enhanced multi-core performance". Give that a try (and make sure your temperatures are still in check, but I doubt that will be a problem with water cooling).
 
adampk17
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Re: Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 1:57 pm

blargh4 wrote:
If you just want to run the single-core max turbo on all cores simultaneously, there's often a one-switch option in the bios, on your motherboard it seems to be called "enhanced multi-core performance". Give that a try (and make sure your temperatures are still in check, but I doubt that will be a problem with water cooling).


Interesting... a quick google of "enhanced multi-core performance" does indeed seem like a quick and dirty way of locking all cores at 5 GHz for me. Perhaps to dirty. Sound like voltage can be cranked up higher than necessary by that setting and, if I'm reading correctly, it sounds like SpeedStep would be disabled?

I guess I should have mentioned that in my first post. I would prefer that SpeedStep still function with my 5 GHz all-cores overclock. Is that unrealistic?
Megatron must be stopped, no matter the cost.

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bthylafh
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Re: Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 2:06 pm

Press the turbo button so it'll run at 6 MHz. :P
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K-L-Waster
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Re: Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 2:15 pm

I followed Der8aur's Youtube guide to get my 8700K to 4.9 all cores. I'd recommend to take a look at it (you may need to adjust a bit though as he was using an Asus Maximus motherboard rather than Gigabyte, so the parameters may have slightly different names. )
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adampk17
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Re: Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 3:32 pm

K-L-Waster wrote:
I followed Der8aur's Youtube guide to get my 8700K to 4.9 all cores. I'd recommend to take a look at it (you may need to adjust a bit though as he was using an Asus Maximus motherboard rather than Gigabyte, so the parameters may have slightly different names. )


I did a quick search of Youtube for Der8aur on my phone, didn't see the exact video you were speaking about, but I did run across a video or two by Boosted Media that seems pretty good. I'll be taking a look at my Gigabyte BIOS tonight to see how well it matches the Asus settings used in the videos.

Thanks, this is a solid lead. Anyone else have another source?
Megatron must be stopped, no matter the cost.

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DPete27
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Re: Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 3:59 pm

Look at the BIOS screen where the CPU multipliers are located. They're probably all set to "auto" right now. You can change that to manual. I know my AsRock BIOS also has an option to set multipliers "per core" or "all core" right so by selecting "all core" I only have to type in one number (41) for my 3570K to run 4.1GHz on all cores but I can accomplish the same result setting the 4 multipliers individually to 41 also. I can't remember if Gigabyte has that option, but I could check tonight, I know my Gigabyte Z97 board came default with MCE turned on, so it's running that 4690K at 3.9GHz on all cores. Most/all manufacturers have now been pressured to leave MCE off by default nowadays.

MCE does not break Speed-Step. Both my systems will still idle.

Leaving the voltage set to Auto is going to allow the mobo to add voltage when you increase the multipliers above stock (which most will). It's pretty well understood that mobos tend to add more voltage than what's needed. There's multiple ways to circumvent this, the easiest way I found was to set a very small voltage offset on my AsRock board. That essentially prevented the mobo from juicing the chip, so my OC is at stock voltage. Just do a Prime95 run with CPUz open before you start OCing and write down the voltage you see at stock.

That said, IIRC the 8086K was pretty juiced and binned to get to the 5GHz single core turbo speed and that it actually matches the 8700K clocks when you have >1 core loaded (reference). Depending on your luck in the chip lottery, OCing the higher core count chips to a single "all core" turbo may not be as efficient as having even a single multiplier step (say 4 multipliers at 5GHz and the other 2 at 4.7GHz). Of course, that all depends on how advanced you get with voltage adjustments. I wouldn't expect to get 5GHz an all 6 cores at stock voltage.

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Last edited by DPete27 on Fri Oct 12, 2018 4:51 pm, edited 1 time in total.
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Voldenuit
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Re: Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 4:51 pm

adampk17 wrote:
blargh4 wrote:
If you just want to run the single-core max turbo on all cores simultaneously, there's often a one-switch option in the bios, on your motherboard it seems to be called "enhanced multi-core performance". Give that a try (and make sure your temperatures are still in check, but I doubt that will be a problem with water cooling).


Interesting... a quick google of "enhanced multi-core performance" does indeed seem like a quick and dirty way of locking all cores at 5 GHz for me. Perhaps to dirty. Sound like voltage can be cranked up higher than necessary by that setting and, if I'm reading correctly, it sounds like SpeedStep would be disabled?

I guess I should have mentioned that in my first post. I would prefer that SpeedStep still function with my 5 GHz all-cores overclock. Is that unrealistic?


I have Multi Core Enhancement (MCE) enabled on my 8700K in my Aorus Gaming 3 mobo and Speedstep works fine (idles at 800 MHz, boosts to 4.7 GHz w 12T load).

Be aware that turning on MCE can increase power by quite a bit, make sure you have sufficient cooling*.

* EDIT: Oof. The anandtech article DPete linked above showed that when they bumped all-core boost up to 5.0 GHz, power consumption jumped from 115W (stock) to 175W. Eeps.
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adampk17
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Re: Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 5:13 pm

DPete27 wrote:
I wouldn't expect to get 5GHz an all 6 cores at stock voltage.


Thanks for all that info, DPete27. I'm not expecting to get 5 GHz on all cores without a bump in voltage. I'd like to take a realistic approach to that extra voltage if I can figure where best to start or how to proceed if I get instability. MCE sounds like it may be the quickest way to be done with the overclock but I'd rather not juice the chip unnecessarily.
Megatron must be stopped, no matter the cost.

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adampk17
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Re: Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 5:19 pm

Voldenuit wrote:
* EDIT: Oof. The anandtech article DPete linked above showed that when they bumped all-core boost up to 5.0 GHz, power consumption jumped from 115W (stock) to 175W. Eeps.


At 5 GHz all core the power was 152W, wasn't it? One of us is reading it wrong and it could be me. :)
Megatron must be stopped, no matter the cost.

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Voldenuit
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Re: Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 5:20 pm

adampk17 wrote:
Voldenuit wrote:
* EDIT: Oof. The anandtech article DPete linked above showed that when they bumped all-core boost up to 5.0 GHz, power consumption jumped from 115W (stock) to 175W. Eeps.


At 5 GHz all core the power was 152W, wasn't it? One of us is reading it wrong and it could be me. :)


152W was with user-tuned voltage.

The 2nd-from top row with 5.00 GHz and Voltage set to 'Auto' registered 175W.
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adampk17
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Re: Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 5:35 pm

Voldenuit wrote:
adampk17 wrote:
Voldenuit wrote:
* EDIT: Oof. The anandtech article DPete linked above showed that when they bumped all-core boost up to 5.0 GHz, power consumption jumped from 115W (stock) to 175W. Eeps.


At 5 GHz all core the power was 152W, wasn't it? One of us is reading it wrong and it could be me. :)


152W was with user-tuned voltage.

The 2nd-from top row with 5.00 GHz and Voltage set to 'Auto' registered 175W.


I see that now. All the more reason I don't want to use Auto for voltages..

Goodness, that Anandtech article is not kind to the 8086K. Most articles say it's not worth the price premium over the 8700K but they don't have it losing benchmarks to it.
Megatron must be stopped, no matter the cost.

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adampk17
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Re: Easy overclocking guide or instructions for 8086K?

Fri Oct 12, 2018 5:46 pm

From the conclusion page of the Anandtech article:

The flip side of that however is that – as Ryan and I have been debating internally – is whether this is a processor even meant for stock usage. Intel’s binning process means that for one core to be able to run at 5.0 GHz at a reasonable voltage, all of the other cores are practically guaranteed to do this as well. Which is to say that this chip is incredibly trivial to overclock to 5.0 GHz, even more so than the 8700K. In fact it feels like Intel really wanted to release a true all-core 5GHz CPU – damn the power requirements – but chickened out at the last moment and decided to require end-users to press the magic awesome button to unlock its full potential.

Ryan says that he can't imagine anyone well-read on the subject of CPUs not overclocking this chip to a flat 5.0 GHz, and after discussion I’m inclined to agree with him.



I guess now I practically HAVE to overclock to 5.0 GHz on all cores. :lol:
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