10-04-2022 06:30 AM - last edited on 12-02-2024 10:18 PM by Silent_Scone
ill use this thread to collect some new test bioses for the boards, maybe also to explain some less understood options
to disable cores ccd go here and choose ccd xx bit map down core.
each ones stand for an enabled core
best to disable from the back, ie:
110000
instead of 0011000
after selection press downcore apply changes or discard if made mistake
ocpak/octools
FAQ:
7950x not boosting pass 5.5G -> check that CStates is not disabled
Detailed Explanation on CState Boot Limiter
Test BIOSes:
new:
X3D OC Preset for those MB with asynch BCLK Support: (for simple slight perf boost for X3D)
DOCP/EXPO Tweaked: (for simple timings tightening)
strixe-e 1515
for crosshair and strix e-e:
explanation of segment2 Loadline:
customize a heterogenous loadline for a dual segment workload range.
example above shows loadline=L6 when current is in range of 0~40A, and Level4 when current is above 40A.
Adds for x3d
dynamic ccd priority switch with core flex, os / driver agnostic so win10 win11 ok
Algo as follows:
If condition reached and ccd0 specified, then check current mem/cache activity > threshold and hysteresis reached, if fulfilled then switch
If condition reached and ccd1 specified, then check current mem/cache activity <=threshold and hysteresis reached,, if fulfilled then switch
Default hysteresis =4
Can combine multiple algos for ccd priority so combinations are wide
works on non x3d too but of course senseless on it. detailed explanation here.
Solved! Go to Solution.
02-17-2025 12:00 PM
you would be way better off with 2x32GB 6000 CL26 kit @ 1.40v by G.Skill
02-17-2025 12:45 PM
OP of my thread on OCN has been updated today with 30 runs of AIDA64, 3 runs per FCLK, FCLK from 2000MHz to 2233MHz tested. This was as I have seen posts saying run FCLK based on what MEMCLK you use, people can decide upon the data what is best to run 🙂 .
-=: AMD Ryzen Curve Optimizer Per Core :=-
02-17-2025 02:49 PM - edited 02-17-2025 02:50 PM
It's worth mentioning a stable FCLK of 2233 on a 9800X3D is quite rare (seeing as this is the flavour of the month), so be thankful if you have a CPU that can do it 😌
02-19-2025 08:42 AM
is a stable FCLK of 2200 @ DDR5 6000 common? I figured my 9800x3D's IMC was decent. CPU also overclocks well combined with the FCLK. MCLK=UCLK 1:1, Nitro Mode 1-2-0. Karhu tested up to 6000% recently and no errors.
02-17-2025 05:12 PM - edited 02-17-2025 05:13 PM
Indeed 🙂 .
It does quite well on FCLK 2233MHz in a lot of things. It's heavier CPU oriented stability tests were it may fail.
Perhaps a later UEFI with newer CPU microcode/SMU FW will gain it stability for 2233MHz. If not it's non issue, as so far not found no instability at FCLK 2200MHz and it also has decent IMC too. Responding well to PBO CO, comparing to results with other owners it beats them on mutli core performance. So seems like decent cores.
So is quite decent in desirable aspects. I have sampled 2x R5 9600X, 1x R7 9700X and 1x R7 9800X3D.
I think I have settled on Hero as the board to keep, then this CPU. Time to now water cool it 😄 .
02-19-2025 08:34 AM
My 9800x3D with overall SP of 113 seems to also have a decent/good IMC. I imagine if the FCLK was at an unstable frequency it would result in memory errors in a memory test app, like Karhu? I havent seen any stuttering or framerate drops in gaming. I've done Karhu memory testing after tightening up timings and enabling different Nitro mode values. My cpu is overclocked with PBO+104.5 Asynchronous eCLK+Curve Shaper. Then I have my FCLK set to 2200MHz, DDR5 @ 6000 26-36-36-72 @ 1.41v and tightened secondary sub-timings, UCLK = MCLK 1:1 ratio. I'm on the X870E Hero (BIOS 1003). I really want the new upcoming x870E Apex board, but man, I don't want to have to undo my Optimus Signature V3 AM5 water block, cpu, cpu thermalright contact frame, etc. Plus adding more thermal paste. It's a lot of hassle for migrating over to a 2-DIMM slot board. I'm sure it's worth the better DDR5 overclocking abilities though. I'm not so sure what else I could really improve upon while keeping the 6000 Mhz DDR5 frequency. I guess I could always try 2x32GB CL26 dual rank kit from GSkill and tighten it up further. Then again I only game and don't need over 32GB of ram. If I did I would also consider the new GSkill 2x24GB single rank 6000 @ CL28-36-36-96 @ 1.40v kit.
I'm somewhat focused on getting a couple of high end audio items sold to get enough money for a new Nvidia 5090 GPU. I'm currently rocking a 4090. I game exclusively at 4K so I can utilize every bit of the 5090 at these high resolutions.
Thanks
02-19-2025 09:21 AM - edited 02-19-2025 09:21 AM
@UTVOL06 wrote:
My 9800x3D with overall SP of 113 seems to also have a decent/good IMC. I imagine if the FCLK was at an unstable frequency it would result in memory errors in a memory test app, like Karhu?
Yes, unstable FCLK would result in memory violations in Karhu
02-19-2025 10:09 AM
Ok, thank you. I wasn't certain if it would show up in a memory test or not. Any idea what most people are running on the core tuning algorithm? Auto = Level 2 I assume? And then there is legacy and level 1.
02-21-2025 12:21 AM
I'm running Legacy but it depends on the workload as to the benefits. The difference is negligible in most scenarios.
02-21-2025 05:24 AM - edited 02-21-2025 05:24 AM
Thank you Sir,
Which mode would you recommend for strictly gaming? Legacy or Level 2? I know the AMD employee on reddit said Level 2 should provide the best overall performance, but I would rather get feedback from real user experiences.