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Discussion Starter #1 (Edited)
Delidded, conductonaut on die and ihs. Be Quiet Dark Rock Top Flow with noctua nf-a14 ippc 3k pwm, z370i strix itx, 16gb 3200mhz.

vCore set too 1.195v
IA AC and DC LL is set to 0.01
LLC is set at Level 5 (Max 7)
Stable, ambient 24c

Any advice on how I can decrease the vdroop? Other suggestions welcomed.

Thanks :thumb:

 

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Delidded, cryonaught on die and ihs. Be Quiet Dark Rock Top Flow with noctua nf-a14 ippc 3k pwm, z370i strix itx, 16gb 3200mhz.

vCore set too 1.195v
IA AC and DC LL is set to 0.01
LLC is set at Level 5 (Max 7)
Stable, ambient 24c

Any advice on how I can decrease the vdroop? Other suggestions welcomed.

Thanks :thumb:

Hi,

Nice voltage for 5GHz, have you tried any other applications for stressing the CPU like Prime95 etc?
 

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Also to add, have you disabled the C-State settings in your bios?
 

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I'd set LLC to medium for the vdroop unless you are checking it with a DMM, you'd rather have a little vdroop than too much voltage under load.
You should use Hwinfo to check your vcore under load, that's something you should really pay attention to while stress testing and I don't see it on there.
If you think it's stable try Prime95. In my experience passing 2 hours of Prime95 small FFT is enough to never crash in a game. After you know the core is 100% stable and you want to OC the ram and cache you can just use "blend" to test everything at once...2 hours of that has also proven sufficient for my needs.
More info on stressing and OC methodology here:
http://www.overclock.net/forum/5-intel-cpus/1621347-kaby-lake-overclocking-guide-statistics.html

Also to add, have you disabled the C-State settings in your bios?
Just wondering why you'd ask...C-states are good stuff.
 

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Just wondering why you'd ask...C-states are good stuff.
Hi White Owl,

I just find that its easier to stabilise an OC with the C-States disabled to start and tinker with them from there. This is just my personal experience though.
 

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Discussion Starter #7
Yes, stress tested cpu at 1.195v but wanted to fix the vdroop.

Changed vcore to 1.2v and LLC to Level 6 and now its a rock solid 1.200v.

Will stress test for longer and upload results if all goes well.

Thanks for the extra advice, will check it out.
 

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With C states on Auto they only are enabled with Adaptive/Dynamic Vcore when the CPU is idle or halt data instructions, so it does not effect the overclocking processor utilization.
 

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Looking good, your doing fine. What are you going to use the PC for?
 

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The rig will be all set for gaming after your stress testing that your are doing.:specool:
 

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It's an i5.

Non-HT parts run with far less cache pressure, heat and spends less CPU cycles active. Siliconlottery also had 5.3ghz 7600Ks occur far more often than 5.2ghz/5.3ghz 7700Ks. That's the nature of the beast, but it's a very nice i5.
 

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It's an i5.

Non-HT parts run with far less cache pressure, heat and spends less CPU cycles active. Siliconlottery also had 5.3ghz 7600Ks occur far more often than 5.2ghz/5.3ghz 7700Ks. That's the nature of the beast, but it's a very nice i5.
How true:
Silicon lottery
As of 3/22/18, the top 22% of tested 8700Ks were able to hit 5.2GHz or greater.
As of 3/22/18, the top 38% of tested 8600Ks were able to hit 5.2GHz or greater.
 

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Delidded, conductonaut on die and ihs. Be Quiet Dark Rock Top Flow with noctua nf-a14 ippc 3k pwm, z370i strix itx, 16gb 3200mhz.

vCore set too 1.195v
IA AC and DC LL is set to 0.01
LLC is set at Level 5 (Max 7)
Stable, ambient 24c

Any advice on how I can decrease the vdroop? Other suggestions welcomed.
Thanks :thumb:
Hi.

Very Nice CPU.
I feel when higher Bclk frequency is used, the vdroop decreases.
Because, the fluctuation of load for CPU becomes smaller, I think that.
And also LLC is set to Auto, if your system is stable even the auto LLC.
MB was Maximus X Apex.

8700K HT OFF 6Core 6Threds (close to 8600K)
Bclk:125MHzX40=5GHz
vCore set too 1.15v
IA AC and DC LL is set to Auto
LLC is set at Level 4 (Max 8)



8700K HT ON 6Core 12Threds
Bclk:125MHzX40=5GHz
vCore set too 1.165v
IA AC and DC LL is set to Auto
LLC is set at Level 4 (Max 8)
chilled water

 
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