Asus M/B Offset and Adaptive Voltage mode: Voltage Spikes

[dmt_taran]

I've read tons of threads all over the internet with such a name (or close to it), but I've not found at least suitable answer or solution to this issue (exept for chit chats, "i dunno dude, I was just passing by" sort)

I have 8700K with maximus x hero system. CPU is capable of 4.8 GHz at 1.24V, 4.9 at 1.3, 5.0 at 1.355, 5.1-5.2 over 1.4V, uncore ~4.5GHz at every step, no AVX offset. Every mark, every clock step I've tested gradually last 4 months, and I'm 200% sure it Is stable at those clocks with voltage mentioned. In addition, I've used manual voltage and LLC6 for additional stability, IA lines are set to 0.01.

Target is 5.0GHz
The problem is - I can't get stable OC and voltage while using offset and adaptive. Unlike manual voltage, adaptive and offset makes max load voltage fluctuate at 0.05V range. So either I have unstable OC with 1.312-1.328V constant supply with spikes up to 1.36V, or I have stable OC, but with spikes up to 1.408-1.424V.
The problem becomes more complicated under heavy workloads (e.x. BF1). These spikes get more rapid - I could even say that 50% of time CPU gets more excessive voltage.

However, it's not enough to utilize stable OC with lowered voltage - for e.x., suggesting spikes go 50% of workload time and even more, I could lower voltage below stability point, achieving sweet spot between spikes and undervoltage - but it doesn't work, OC is not stable! :mad:

So what is it about? Why voltage is so unstable while using adaptive and offset? How can I solve this problem? Even if it cannot be fixed while under load, maybe there is some way to decrease these spikes, at least to 0.01V mark?

[regular_user]

regular_user wrote:
Following what was said here already I think that LLC level has quite an impact on this.
To contribute, in my case (exact same board) I set AV=1.23V, offset= -0,01 and by LLC=4 and multiplier ratio 48 I get Vcore: min. 1.200V, max 1.246V, average 1.216V, so overshot is ca. 0.026.

I need to correct my numbers so I am not misinforming you (was giving them out from my memory) - in fact I have the setting of adaptive voltage = 1.24V (not 1.23) with minus offset -0.01. With this when gaming I got Vcore min = 1.200 and max = 1.264. So the overshot is like 0.034V and on the other end we have like 0.03V less than setpoint.

[bass_junkie_xl]

there is no "aware adaptive " on asus z 370 x hero . i dont feel like running 5.2 ghz stable @ 1.392v and switch to adaptive and get spikes to 1.45 - 1.49v in adaptive mode no thanks lmao . i hope this can get sorted out

[kalle-m]

bass junkie xl wrote:
there is no "aware adaptive " on asus z 370 x hero . i dont feel like running 5.2 ghz stable @ 1.392v and switch to adaptive and get spikes to 1.45 - 1.49v in adaptive mode no thanks lmao . i hope this can get sorted out

of course there is, if you have svid settings turned on... well it is not gonna spike under load. the difference between a good overclock and a bad one is the person behind the wheel.. so to speak.

[bass_junkie_xl]

you spelled it wrong , its called svid = best case cinario , svid behavior to = on , of corase i have those on silly billy . doesnt help the spikes and yes ia / dc load line is set to lowest 0.01 asus has voltege spikes period in adaptive and its bad .

[kalle-m]

bass junkie xl wrote:
you spelled it wrong , its called svid = best case cinario , svid behavior to = on , of corase i have those on silly billy . doesnt help the spikes and yes ia / dc load line is set to lowest 0.01 asus has voltege spikes period in adaptive and its bad .

no no, I didn't 😛 if you enable everything with SVID, a new option appears above the voltage settings called "aware adaptive voltage", I checked my bios recently when we were talking about it. if you have it on, the cpu demands what it "think" it needs and the mb delivers that. and it almost always overshoots. but if you don't have that option present I think its safe to say that in your case you have it turned off. since you run full power no shower to your cpu all the time I don't think this applies to you 😛 and asus adaptive is not broken it is just finicky you have to test and shut down and test again.


but for everyone else I think this could be why adaptive is acting up.. I am 80% sure that it is SVID settings that enables this option and its not a hard thing to accidently turn it on if you are setting up an adaptive voltage setting..

[kalle-m]

i missed the "BCLK" before aware adaptive.. lul… you should have understood anyway mr.overclock 😄 (and no photoshop)

[kalle-m]

I think this option is present on the lower end boards as well, think it was on my tuf z370 plus also..

[ThrashZone]

Hi,
Could also be called cpu svid support
Friend said it caused cpu voltage spikes on his board z370 apex too, disabled it doesn't.

There is also a dram svid support option too.

[kalle-m]

ThrashZone wrote:
Hi,
Could also be called cpu svid support
Friend said it caused cpu voltage spikes on his board z370 apex too, disabled it doesn't.

There is also a dram svid support option too.

I think it is a mix of bad settings giving people voltage spikes, I have everything SVID related turned on except "BCLK aware adaptive voltage" and I just ran a game for 2 hours with logging and it stays between 1.156 - 1.168 (no spikes, adaptive voltage) at 4.7ghz all core. cache at 4.3ghz. and then when I go to idle it winds down to 800mhz core and cache with a solid 0.672 v 😉

I think this cpu will last me a long while

[ThrashZone]

Hi,
Yeah x99 I use +0.010 and +1.340 and it pretty much maxes at 1.35v
X299 I use the negative because it will spike no matter what but very different numbers -0.035 and -1.185 and it turns out to be somewhat close to 1.3v :cool: