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Try bumping VDIMM two notches and VDDP to 1.122v. You should also loosen RP to 42 and move RC to 100 for now.8100, slightly loosened timings compared to yours, and 1.435 VDDIO, error at the beginning of the 2nd pass, ive got no chance for 8200, obviously temps are not an issue, im guessing its just a weak IMC in my chip.
Fro 8000, default resistances should be fine, don't change them. For 8100/8200, maybe changed they can help.Hi team: I have spent a good afternoon tweaking and testing. I am embarrassed to say I have only just learnt you can save your bios settings on a usb... I have wasted hours of my life, each time, manually inputting the Bios date, for every deviation
I have attached a screenshot, which grants me access to Windows, but no benchmark stability. I have totally ignored resistance settings which have blocked me.
If I load up OCCT or AIDA, I get a crash within seconds: any ideas??
Hi team: I have spent a good afternoon tweaking and testing. I am embarrassed to say I have only just learnt you can save your bios settings on a usb... I have wasted hours of my life, each time, manually inputting the Bios date, for every deviation
I have attached a screenshot, which grants me access to Windows, but no benchmark stability. I have totally ignored resistance settings which have blocked me.
If I load up OCCT or AIDA, I get a crash within seconds: any ideas??
I did that switch, I can't remember specifics tbh but i don't recall too much change. Maybe another 3-5c or so. It really depends if you unlock the power limit on the 9950X3D. At stock temps won't change that much, but if you unlock it and allow the CPU to draw 250W+ then you will see a more noticeable increase. In short, if your cooling is strong don't worry about a temp increase. 360+ AIO recommended.
I'm seeing some people on reddit apparently relying on this guy's writings, do you all know if it's worth a read?
had the first idle freezes today after undervolting 
What is your idle power?I decided to use curve optimizer per core instead of per ccd after I getting idle freezes instead of going straight to curve shaper to reduce complexity, using ycruncher (runtimePerCore = auto, "19-ZN2 ~ Kagari") via this script: https://github.com/sp00n/corecycler/releases
It seems like the results are going much better than I expected; two ccd1 cores were not happy at all with high undervolting quite early on, but most keep going. C-states enabled in the bios also seemed to have a very negative effect (idle power consumption is currently quite high tho). I may bring back my former system for more mundane tasks
8300C34 stable, low VDD 1.65v 1.45v VDDQ, 1.135v SOC (actual is 1.125v), 1.446v VDDIO, 1.128 VDDP.8200Mhz? Completed it mate. We've moved onto 8300Mhz.
Best possible board out there for AM5 atm, although the Gene is right behind it. Generally speaking and without exotic cooling, 8300 is about as high as you can go reliably and even that is not guaranteed. 8300 took me days to stabilise so its not for the faint hearted. People with more exotic cooling on CPU/RAM etc can go up to 8400-8600. If you buy a decent board though its definitely worth putting the effort in IMO to ensure you hit at least 8200Mhz.
