New BIOS 4201 X570

[Baalberith_NL]

ROG CROSSHAIR VIII DARK HERO BIOS 4201
1. Update AGESA version to ComboV2PI 1207.
2. Improve system stability.

[Barryboy]

Works like a charm. ZERO issues for me. Very happy with this stable BIOS. Thank you
ASUS Crosshair VIII HERO
5900X
MSI 3080 Ti
Corsair 32GB 3600MHZ

[GoLLuM13]

I'm still having problems with this BIOS version, same problems I'm having since BIOS 3904 based on AGESA 1.2.0.5. AMD introduced some kind of bug that made my PC unstable (and I'm not the only one apparently there's a reddit post that I made with many feedbacks) the issue affects Ryzen 3000 CPUs, it goes from losing performance to total instability

[jeordiewhite]

I am running 4201 and I haven't had any major issues like I was before.
I have possibly narrowed down my issues to two factors. I use VM's and I ended up turning off SR-IOV support in eufi and experienced less crashes. You may not have that on or use that feature. I no longer use that feature not having two video cards installed, so I can reasonably turn it off anyway.
The second likely culprit is I turned PBO fmax enhancer and as far as I can tell, I haven't had my daily crashes.

I had been meaning to test if asus AI suite was a culprit as when I updated to 4004 and 4006 and my RBG system was messed up, I went through armoury crate and updated AI suite 3 to the latest. I know in the past for some people, there had been some major issues with it causing system instability and that was updated roughly the same time these crashes started happening.
The other issue I went through was my memory timings, I had ran the ryzen calculator, determined some good values for tighter timings and had a very stable system up until that point. However I lost those timings after a bios update and importing them wasn't an option. So I assumed I was having issues there and went back to default values even.
I want to say turning off an on options, The PBO fmax enhancer may have been the root cause and as far as I am aware I am not experiencing a crash at least once a day. I still have yet to spend more than a few hours in the evening to determine if it's fully gone.

[GoLLuM13]

I do use VMs too, and tried with and without this options, tried a lot of things actually, and changing VDDCR SOC Voltage to Offset mode was the best option even it wasn't stable, I could boot but not restart. Let's say it's a bit more complicated for Ryzen 3000 CPUs there's a whole reddit thread about it and here's the "conclusion" : https://www.reddit.com/r/Amd/comments/uquyu1/comment/i92su02/?utm_source=reddit&utm_medium=web2x&con...

[in_mono]

Any idea why this version isn't listed any more for the Dark Hero? I installed it a couple of months ago, I see there's a newer one too, but it's weird to not see this one listed. Was there a security vulnerability in it - the one that the last version claims to mitigate - or does that apply to all previous versions?