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View Full Version : ROG STRIX Z370-I GAMING LLC-problems



Kale007
10-23-2017, 06:24 PM
Hey,
I've updated to the latest BIOS and all that, done most of the tweaks I can think of (pl1 & pl2 to 4095, current limit 255 etc.), but I'm having problems with my board regarding LLC-levels 6 and 7 specifically. I find stability for my overclock with LLC5 easier than with the higher levels, where the VDroop is higher but OC more stable (VDroop around 0.04V, too much imo). With LLC6 and LLC7, it crashes instantly in stresstests or a few minutes later. With LLC5 it's perfectly stable. How come? From my understanding levels 6 and 7 should be more stable than level 5, but use more voltage to lower VDroop. Am I completely in the wrong here?

Kale007
10-25-2017, 06:34 PM
Could I get an answer regarding this problem? I've never had an issue with Asus before this, and would hope to keep the appreciation I have towards Asus for their quality components.

Raja@ASUS
10-25-2017, 06:39 PM
Assuming you're matching the voltages properly, it's quite possible level 5 is more complimentary for the VRM.

Kale007
10-25-2017, 07:59 PM
Assuming you're matching the voltages properly, it's quite possible level 5 is more complimentary for the VRM.
Ok, that's all I wanted to hear! Thank you for clearing this up!

BRUNEZ
11-28-2017, 08:16 PM
Edit. Sorry for the mistake.

DONIII007
12-30-2017, 05:24 PM
I apologize for necroing this thread but I seem to have the same problem. LLC6 just BSODs (IRQL, SYSTEM_SERVICE_EXCEPTION) while LLC5 seems to be fine.

Could we get some explanation about why this happens? Will active cooling for the VRMs solve this issue?

EDIT: I've tried all BIOSes from 0430 to 0605. Nothing helped

Praz
12-30-2017, 08:01 PM
I apologize for necroing this thread but I seem to have the same problem. LLC6 just BSODs (IRQL, SYSTEM_SERVICE_EXCEPTION) while LLC5 seems to be fine.

Could we get some explanation about why this happens? Will active cooling for the VRMs solve this issue?
Hello

The explanation was given in post #3 of this thread.

MrAgapiGC
12-31-2017, 10:01 AM
Hello all , almost 2018. in advance happy 2018. i was working yesterday with a z370-E (8700K) and there are bios updates and drivers updates that address these. i was helping a friend of mine checking a odd error. and LLC and temps here fix. today or tomorrow I will try to see the computer in person to take notes. but yesterday night those BSOD where gone. since LLC was the reason to make these bios. remember before all those make sure the bios is by default and do no reuse the profile. also if anyone using the AI suite the update app will not, as far is my understanding, will not check the new updates. but is stable and all check and temps where good on default bios. I am just taking notes.

DONIII007
12-31-2017, 07:06 PM
Hello

The explanation was given in post #3 of this thread.

I've read the post. I'm still not sure RAJA exactly means with "complimentary". Why is LLC5 more "complimentary to the VRMs"?
LLC6 is totally broken. Why is it an option in the first place? Is it a thermal issue?

The problem with LLC5 is the Vdroop is too much IMO (0.044 for me) . And why do I care about Vdroop in the first place? It seems for me that offset and adaptive voltage are also broken (I need to test more before creating a thread about this). So, I don't wanna run excessive voltage to the chip all the time because of the big Vdroop.

Raja@ASUS
01-01-2018, 11:46 AM
I've read the post. I'm still not sure RAJA exactly means with "complimentary". Why is LLC5 more "complimentary to the VRMs"?
LLC6 is totally broken. Why is it an option in the first place? Is it a thermal issue?

The problem with LLC5 is the Vdroop is too much IMO (0.044 for me) . And why do I care about Vdroop in the first place? It seems for me that offset and adaptive voltage are also broken (I need to test more before creating a thread about this). So, I don't wanna run excessive voltage to the chip all the time because of the big Vdroop.


Complementary means that at that the level of droop is optimal for the VRM circuit. Decreasing the droop further will increase overshoot and can induce instability.

DONIII007
01-01-2018, 06:21 PM
Complementary means that at that the level of droop is optimal for the VRM circuit. Decreasing the droop further will increase overshoot and can induce instability.

Thanks for the explanation. But how does that explain that not all users experience this while overclocking? Are there different sources for the VRMs on this board?

Raja@ASUS
01-01-2018, 06:41 PM
Thanks for the explanation. But how does that explain that not all users experience this while overclocking? Are there different sources for the VRMs on this board?

Understanding voltage regulation is not trivial. And no, there is only one source for Vcore.