SPI flash / SMI/SMM + some observations (AM5)

[Sandy]

not trying to argue, but from your youtube comments and posts here it looks like you're mad im not giving you one instant toggle. i cant ignore that for me the problem started with a mobo change. same cpu gen, different chipset and bios. that rules out "this board sucks at ram, buy another one" answers and psu experiments too.
thats also why i stopped chasing voltage tweaks and auto to fixed conversions. setting vsoc/vddio to fixed might stabilize something but it doesnt touch what i actually think is going on. what im looking into now is the event chain itself. how an input travels through firmware handlers before it reaches the os, and what interrupts the cpu along the way. thats a firmware timing question, not a voltage one. how fast firmware reacts to an event and how fast it hands control back. if firmware sits in smm for even a few dozen μs at irregular intervals, no ram tuning fixes that.
i know smi isnt something most people here deal with and im not presenting this as "heres your fucking fix". its a theory based on facts and what im sharing are bios tokens that could reduce smi frequency or shorten smm time. asking people to try and post back, not claiming i solved anything altrough from my subjective perception it runs perfect now and may be delusional again and even if emi was a real problem on your end, you still cant ignore smi. its NOT OPTIONAL. its a real thing that steals cpu time and the os literally cant see it happening. I will posts as much bios tokens i can , as much regedit or driver stuff i can because in my opinion it's that kind of issue and its clearly voluntary to test this things. We chase two different ghosts.

我可以给你推荐一个人 他在中国版Tiktok直播 他是我见过的所有游戏主播当中 唯一一个没有输入要延迟的人 但问题是你可能无法使用这个软件

[agendarsky]

Sorry if it sounded like I wanted to pick a fight of course I didn't, I just want to solve the problem too. As you can see, I've been a forum member for quite a while, since 2022, but this issue existed even before that. For me, it started around 2019–2020. That said, I really respect that you're the kind of person who actually dives into topics like this no one else did. Naturally, if you suggest something useful, I'll try it out. I'm looking for a fix for this floaty mouse movement it's honestly unbelievable that I move the mouse and it stops somewhere else, I constantly overshoot, and it just doesn't feel crisp/snappy.

okey men, just try to not loose faith and patience , paying for high end hardware and ending up with crippled performance sucks , despite bios visible settings there is also config space settings for pch/fch and i will take a look on that.

[TN_fun]

I read the topic, but I still didn't understand why this needs to be done. If something isn't working for you as it should and input lag somehow accumulates literally during a match (lol, I know how this happens, when I faced this in 2012 I thought I was the only one) - there is no point in changing some settings, because you decided that the matter is in the motherboard. Literally nobody knows about these settings and does this. You can just go to Twitch or YouTube, find a player in any game you know from the top ladder and buy all the components 1 to 1 down to the mouse (motherboard in the first place).And I assure you - this will not help. So what is the matter, if you buy components like a cyberathlete, but for you everything still does not work?And I assure you many of them do not configure anything, and those who configure - share this in the signature of their channels. You can literally buy the same computer as this guy and buy the same tuning service as him. So what is the matter?