Help With 8700k OC

[RocketJump]

Hey all, hope your holidays are going well. I'm having a hell of a time here with my 8700k, if it weren't for eggnog and rum I'd probably have already thrown it out the window. So all I'm trying to do is get a meager 4.7GHz on all cores. I can achieve this by setting the vcore to 1.225, LLC to HIGH (I'm using a Gigabyte Aorus Z370 Gaming 5) with good temps and a max vcore of 1.276v reported in HWMonitor. The issue is, I want to use ADAPTIVE voltage so I'm not running at max voltage all the time, this is where things stop making sense to me. I had my DVID offset to -0.115 and LLC to HIGH earlier and thought that I was stable but started crashing when running benchmarks or playing games. Here's the thing, with that particular offset, my reported vcore is 1.250ish with a max of 1.308. Why am I stable at a lower vcore using manual voltage but not stable using adaptive at this higher vcore? I've tried using TURBO LLC but that's not helping me either. Can anyone explain this to me and possibly help me achieve 4.7GHz w/ adaptive voltage? 

[xg32]

-0.115 is a big drop  and can cause instability while the cpu fluctuates in load.

 

I personally can't use anything more than -0.025 (note the extra 0) on my z390, i think on my z370 extreme4 the max was -0.07, so ya, -0.115 is alot, if you don't like using the extra voltage, use a lower voltage llc, or just clock the cpu higher.

[RocketJump]

4 minutes ago, xg32 said:

-0.115 is a big drop  and can cause instability while the cpu fluctuates in load.

 

I personally can't use anything more than -0.025 (note the extra 0) on my z390, i think on my z370 extreme4 the max was -0.07, so ya, -0.115 is alot, if you don't like using the extra voltage, use a lower voltage llc, or just clock the cpu higher.

So this is due to the fluctuations with adaptive then? I don't think I fully understand how DVID works.

[xg32]

Just now, RocketJump said:

So this is due to the fluctuations with adaptive then? I don't think I fully understand how DVID works.

the offset on my boards at least affects the idle voltage and everything in between, so if the idle voltage is too low or you go from a high usage area (4.7 stable at 1.27-1.3v) then go to a low usage area (i'm guessing here, 3.6 0.95v) then it might not be stable, and since you are using a -0.11 offset i'd say that's likely. So you need to find a less aggressive offset that works all voltages/speeds (you'll have to use a llc that pumps out less voltage at full load)

[RocketJump]

31 minutes ago, xg32 said:

the offset on my boards at least affects the idle voltage and everything in between, so if the idle voltage is too low or you go from a high usage area (4.7 stable at 1.27-1.3v) then go to a low usage area (i'm guessing here, 3.6 0.95v) then it might not be stable, and since you are using a -0.11 offset i'd say that's likely. So you need to find a less aggressive offset that works all voltages/speeds (you'll have to use a llc that pumps out less voltage at full load)

Holy crap I think I got it..... So I was missing a crucial step, I needed to ensure IA AC/DC Load Line was set to auto and then in "VR Control" I had to set IA AC and IA DC both to 1. This caused my voltage to go flat at around 1.280v when I set my DVID to +0.000 at 4.7GHz. From here I applied my offset if -.055 and finally set my LLC to HIGH and it looks good so far! I don't remember ever having to set IA AC/DC on other boards and frankly I don't even know what the hell it does, but it works. 

[xg32]

13 minutes ago, RocketJump said:

Holy crap I think I got it..... So I was missing a crucial step, I needed to ensure IA AC/DC Load Line was set to auto and then in "VR Control" I had to set IA AC and IA DC both to 1. This caused my voltage to go flat at around 1.280v when I set my DVID to +0.000 at 4.7GHz. From here I applied my offset if -.055 and finally set my LLC to HIGH and it looks good so far! I don't remember ever having to set IA AC/DC on other boards and frankly I don't even know what the hell it does, but it works. 

lol...whatever works, i have no idea what those are, i had problems with fluctuations until a bios update fixed it for me

[RocketJump]

5 minutes ago, xg32 said:

lol...whatever works, i have no idea what those are, i had problems with fluctuations until a bios update fixed it for me

I just read into it and apparently they prevent voltages from exceeding your set vcore when using an offset. Thanks for your help!