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Helpful ReplyHot!EVGA Z390 DARK and B-Die based low latency memory overclocking

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Zeddivile
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/05/10 11:37:46 (permalink)
I fail at mem OC
 
 
post edited by Zeddivile - 2019/08/12 14:25:44

"This stuff breaks my tiny often dehydrated and carb deprived hamster brain"
 

 

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TwoEvilOne
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/05/16 20:10:25 (permalink)
great info

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#32
k|ngp|n
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/05/21 20:20:22 (permalink)
I don't bump it back down after training. I am unaware of any correlation between high sa/io and imc degradation, that doesn't mean that there isn't any though. I just haven't seen it yet at my side.
When I was testing the 390 dark alot, I was beating the hell out of some 9900k cpus 1.55+ io/sa for the really high 4900mhz+ LL benching mostly on air cooling too. Kept working well every session without any decrease in overclockability that I could tell. 
 
Zeddivile
Do yall bump VCCSA/IO back down to under 1.4 - 1.45 after training?  When shooting for High-ish Bdie clocks? or Leave it up at 1.4/ 1.45 for the entirety of the bench session?
 
In my small sample size of 3 9900K's I can't get training @4300+ w/o at least 1.4v SA and I am pretty sure my chips don't enjoy long exposures to 1.4v sa/io.
 
One of my CPU's after running 1.45v SA for about 5 bench sessions of ~5 hours per session decided it only likes at least 1.375v+ SA regardless of clock.
 
Which i correlated with a degradation of IMC associated with SA V at 1.4v but I didn't know how to validate that theory and am mostly just in a state of perpetual speculation and assumption. #feelsbad
 
 
 
 





 
#33
tfures
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/05/22 03:42:48 (permalink)

Testing Super PI 32M 5GHZ efficiency. Btw these are A2 PCB B-dies
post edited by tfures - 2019/05/22 04:03:31

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k|ngp|n
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/06/10 20:59:53 (permalink)
tfures

Testing Super PI 32M 5GHZ efficiency. Btw these are A2 PCB B-dies


Nice clocks and timings.

 
#35
sergmann
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/07/09 13:24:23 (permalink)
did someone use A2 mem with tight timings like tfures, but not HOF-Mem maybe g.skill?
#36
bruno_ro
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/07/09 20:32:45 (permalink)
sergmann
did someone use A2 mem with tight timings like tfures, but not HOF-Mem maybe g.skill?




Yes. Sabishii Hito did with GSKill 4000C17 Royal.
Check first page of this thread: https://forums.evga.com/FindPost/2934265
 
 


 
#37
sergmann
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/07/10 09:14:46 (permalink)
bruno_ro
sergmann
did someone use A2 mem with tight timings like tfures, but not HOF-Mem maybe g.skill?




Yes. Sabishii Hito did with GSKill 4000C17 Royal.
Check first page of this thread: 
 
 


4k are not the problem, but over 4k is not possible with G.Skill A2, with HOF-Mem no problem.
#38
bruno_ro
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/07/10 21:38:34 (permalink)
Oh, I see. I have a Gskill 3600 Royal (A2) kit to check. Only the time is the problem :)
I will try in weekend and let you know.


 
#39
radippc
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/08/02 09:45:18 (permalink)
how tight you wants ? c12 or c14 
with c12 i can reach 4133 with c14 i can bench gb3 at 4933 
 


 
#40
bcavnaugh
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/08/02 09:53:38 (permalink)
Geekbench 3  X299 Dark My Z390 Dark is on Order ATM
http://browser.geekbench.com/geekbench3/8798272
Are you using the same OC Setting that is Posted in Post #1 for the CPU?

 

Geekbench 4
https://browser.geekbench.com/v4/cpu/14145618 X299 Dark My Z390 Dark is on Order ATM
https://browser.geekbench.com/v4/compute/4378806
 
post edited by bcavnaugh - 2019/08/02 10:56:50


#41
sergmann
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/08/02 10:20:00 (permalink)
CL12 but with 1T 😉
#42
sergmann
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/08/02 13:47:37 (permalink)
I'm using the same settings from the first post, but with A2 Mems it was not possible to boot with 12-11 or 12-12 higher than 4000 and tight timings 😔
#43
bruno_ro
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/08/09 08:45:08 (permalink)
Here is some testing i've done today. I compared memory kits A1 vs A2: Galax HOF OC Lab 4133C19 vs GSkill Royal 3600C16.
Platform: 9900K @ 5Ghz, Z390 Dark BIOS 0.93, VCCIO 1.25, VCCSA 1.25
RAM: 4000 15-15-15-30-2 @ 1.60v

I've used X265 4K as benchmark.
 
Results:
A1: BSOD before entering Windows or benchmark run 2 frames and stops. Also tried 1.65v for RAM. Same issues.
A2: benchmark run flawlessly. no problems at all. I can even lower TWRRD_sg / dg to 26 / 22. It even run in overkill mode!
 
So the last BIOS is definitely optimized for A2 memory PCB.
 
Update: Even better! 4133 @ 1.75v

post edited by bruno_ro - 2019/08/09 09:13:39

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#44
sergmann
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/08/28 16:14:09 (permalink)
radippc
how tight you wants ? c12 or c14 
with c12 i can reach 4133 with c14 i can bench gb3 at 4933 
 



Can you please send me your profiles for 4133 C12 and 4800 C14?
I tested three kits, with the TeamGroup it was possible to use 4800 and C14 but not 4xxx with C12.
Two more kits from G.Skill can only run with C12 and 4000, 4700 or 4800 with C14 not possible. Both kits make it on the Asus Apex XI :(.
#45
kelkel1
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Re: EVGA Z390 DARK and B-Die based low latency memory overclocking 2019/09/08 13:21:26 (permalink)
Some good info.
 
Is there any tutorial specifically for sub-timings?

Z390 DARK, 9900K, 2080 FTW3 ULTRA, GSKILL 4500, 960EVO M.2
#46
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