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Kaby Lake Overclocking Guide [With Statistics] - Page 452

post #4511 of 4755
Quote:
Originally Posted by MaKeN View Post

You are targeting 1.38+?

Try ia/dc on auto
Quote:
Originally Posted by MaKeN View Post

Apparently we own almost identical cpu in oc range
But mine will pass with and with anything more than 1.376

My setting are 1.38 in bios
Under load its 1.36-1.376

I just tried auto AC/DC with various voltages and LLC combinations.

Still wasn't able to dial in a voltage between 1.38-1.39

Always 1.376 and lower or 1.392 and higher



Am I safe just staying with my 1.85 bios vcore and 1.392 windows overshoot? Or should I do 1.4 bios with 1.392 windows undershoot?
Quote:
SYNC ALL: 5Ghz
CACHE: 42
BIOS VCORE: 1.385
WINDOWS IDLE:1.392
WINDOWS LOAD: 1.392
VCCIO: 1.2
SA: 1.2
IA/DC 0.01
LLC 6
XMP
Quote:
SYNC ALL: 5Ghz
CACHE: 42
BIOS VCORE: 1.4
WINDOWS IDLE:1.392
WINDOWS LOAD: 1.392
VCCIO: 1.2
SA: 1.2
IA/DC 0.01
LLC 3
XMP

Edited by dtfkev - 10/21/17 at 10:12am
post #4512 of 4755
Its basically the same thing... as with no load that 1.4v do not hurt...
in your situation if if 100% stable in both cases, i would go with the 1.385 in bios
post #4513 of 4755
Quote:
Originally Posted by dtfkev View Post


I just tried auto AC/DC with various voltages and LLC combinations.

Still wasn't able to dial in a voltage between 1.38-1.39

Always 1.376 and lower or 1.392 and higher



Am I safe just staying with my 1.85 bios vcore and 1.392 windows overshoot? Or should I do 1.4 bios with 1.392 windows undershoot?

Yes:)
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post #4514 of 4755
Quote:
Originally Posted by MaKeN View Post

Its basically the same thing... as with no load that 1.4v do not hurt...
in your situation if if 100% stable in both cases, i would go with the 1.385 in bios

Quote:
Originally Posted by nrpeyton View Post

Yes:)

Fantastic!!!! Just wasn't sure if there was a major difference between the two being how windows voltage is the same between them

Definitely appreciate all the help in this thread!

This processor has been a bit more tedious then my last overclock endeavor.
post #4515 of 4755
Quote:
Originally Posted by dtfkev View Post


Fantastic!!!! Just wasn't sure if there was a major difference between the two being how windows voltage is the same between them

Definitely appreciate all the help in this thread!

This processor has been a bit more tedious then my last overclock endeavor.
Now its time to oc the uncore smile.gif
post #4516 of 4755
Read a post the other day; someone said I should of applied Conductonaut to the underside of the IHS as well as the DIE.

What are others experience of this? Is there actually a temp drop to be had here?

Can't decide whether to re-do it now. (I never glued the IHS back on so it wouldn't be too timely).

Is it worth it though? Is thee anyone whose tested both methods?

Thanks.
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post #4517 of 4755
Quote:
Originally Posted by nrpeyton View Post

Read a post the other day; someone said I should of applied Conductonaut to the underside of the IHS as well as the DIE.

What are others experience of this? Is there actually a temp drop to be had here?

Can't decide whether to re-do it now. (I never glued the IHS back on so it wouldn't be too timely).

Is it worth it though? Is thee anyone whose tested both methods?

Thanks.

Considering you didn't see a 20c drop, it's probably worth the trouble. I personally just followed Rockit 88's instructions in which I used a very thin layer on both IHS and die...and I dropped 20. I think it's safe to assume that the Rockit 88 crew knows what they are doing.
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post #4518 of 4755
Quote:
Originally Posted by ducegt View Post

Considering you didn't see a 20c drop, it's probably worth the trouble. I personally just followed Rockit 88's instructions in which I used a very thin layer on both IHS and die...and I dropped 20. I think it's safe to assume that the Rockit 88 crew knows what they are doing.


De-lid Temp Drops


x264, 16 thread

'Core Max': -20c cooler smile.gif
'Average CPU package' was: -18c smile.gif



Prime95 (27.9 with AVX)

Temp drops for each core (averages) were:
#0: - 15c wha-smiley.png
#1: - 11c mad.gif
#2: - 12c mad.gif
#3: - 18c smile.gif

"At" 15 mins 'core average' was: -17c wha-smiley.png
and 'package max' was -12c mad.gif



Realbench 2.56

Average 'CPU Package Temp' was -18c smile.gif

'Max CPU Package Temp' was -18c smile.gif



x264, 16 thread

'Core Max': -20c cooler smile.gif
'Average CPU package' was: -18c smile.gif


Note: I'm also using a Water Chiller - which drops roughly 15-18c off my water temp too. Is it possible de-lid drops would be more significant if I didn't have an Aquarium Chiller hooked up to my loop?

At 5.1Ghz I also passed 1 of 2 Realbench 8GB (15 min) tests @ 1.375v (LCC auto) being 1.440v in Windows. (This was NEVER possible before -- even with Chiller). Albeit it did take 2 attempts. (at same settings) Indicating I'm still on the bleeding edge of stability here!

Even at 1.40v I couldn't pass 5 Ghz at decent voltages., So de-lid was well worth it"

Due to the extra variables I've talked about now (like chiller running at 11-13c water temp. Do you still think it's necessary to do the underside of the IHS? If YES - then I will get onto it immediately!
Thanks wink.gif

Also recommendations for doing LM between IHS and block, too?
(EK Supremacy Evo - Copper base).
Edited by nrpeyton - 10/21/17 at 9:40pm
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post #4519 of 4755
Its the old adage, no two pieces of silicon will be the same, just because one chip dropped 20c does not mean another will do the same, i have delided 2 7700k's, and neither have had a 20c temp drop. Just luck of the draw IMO. smile.gif
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post #4520 of 4755
Quote:
Originally Posted by nrpeyton View Post

even with Chiller
I happened to compared pre and post delid results while subjecting my entire PC to cold winter air that got temps close to or at freezing. Though this was brief, delidding did raise my max benchable clock to 5400. I was able to do a full CB run that wasn't possible before delidding.

For all practical reasons, keeping your hands off the chip ensures it doesnt get damaged.

No to using liquid metal between ihs and heatsink. Nobody is doing that without regret.

Ya every chip is different, but 20c drop has been commonly reported and though there is no guarantee redoing relid properly will achieve this, it's reason to suspect a high probability.
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