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.
3 weeks ago
GDM disabled sometimes just doesnt work. I cant have it stable within the voltages that i feel comfortable to use daily 🙂
3 weeks ago - last edited 3 weeks ago
Ideally, it's not considered 100%(99.99%) stable unless it can make a full 24hr Karhu run without errors. At least this is what the guy from Framechasers (youtube) does with all his memory OC kits he sells. He runs every one of them 24hrs on Karhu to test stability. While I think this is a little over board, it is more reliable. I think a 12hr Karhu test would be plenty. Another thing to check at least once weekly when overclocking DDR5 memory, is to open the windows 11 command prompt (run as Administrator) and run the windows 11's DISM's Restorehealth tool and when that is complete, run the sfc/scannow tool to check for corrupt windows files. When I was overclocking my 13900KS/Z790 Apex platform even though I was game stable and could run karhu for quite a while, I would still get some corrupt windows system files after a week or so. I know almost everyone wants the fastest and tightest settings they can achieve while remaining "stable". It's better to lean towards the side of stability than towards the bleeding edge. If I was doing 8200 to 8400 relatively "stable", but not 100%, I would back down to 8000 and adjust my timings until I could confidently pass Karhu for a set number of hours. You will want to run 6 to 24hrs for the ideal range with 99% accuracy in order to confidently predict full stability. 99.30% accuracy at 6hrs, 99.91% at 12hrs, and 99.99% at 24hrs testing duration on Karhu.
I apologize if I am being redundant or just spitting out information most people on here know already. This is just what I have learned OCing on the intel platform and constantly reading experienced member's findings from the Overclock dot net forums for the corresponding platform.
Thank you 🙂.
Edits made: correcting spelling, wording, and adding more information and references pertaining to my comments.
3 weeks ago
Thank you for that thats very useful information. I haven't had the kit for more than 24 hours yet so I have not done Kahru for more than 24 hours. So far today at 8 hours on the A Die it had 0 errors. The 8400C40 M Die had errors within 1 minute of starting and I was running 8000C40 with default timings from XMP profile.
I did run the DISM restorehealth and scannow as I suspected there was some corruption to my Windows install (everytime I go restart there would be an error message popping up). I'm thinking the frequent crashes on the M Die has corrupted the freshly installed OS as I didn't have this issue prior.
3 weeks ago
unfortunately, the best thing to do when you get corrupt windows system files is to a new fresh install of Windows 11. Sometimes you can limp on using the repair function in windows. Ultimately, you will still need to do a fresh install.
thanks
3 weeks ago - last edited 3 weeks ago
No system is 100% stable, I wouldn't put much sted in what youtubers say. I've spoken with-actual-DRAM engineers regarding the consensus on memory overclocking.
1. No system is 100% stable
2. When stress testing, the principle is that you're ensuring sufficient stability guardband to not encounter issues. Even a stock system can flip a bit. This is why ECC exists.
In 7 years of using RAM Test as a utility, I've never once encountered a problem on a wide range of systems when working towards 5,000 to 10,000% coverage. If data integrity is crucial enough that one feels the need to test for 24 hours or more, then perhaps overclocking isn't ideal. After 24 hours, what if the system flipped a bit at 31 hours, or 38?
In my experience for a gaming system, 4 to 5 hours of coverage is more than sufficient.
3 weeks ago
Yes this is correct. System stability does not work like "on and off" 🙂
3 weeks ago
I agree, 6hrs in Karhu gives bout 99.30% coverage so 5hrs would likely be around 99.00% coverage, which would be plenty, I think. I know on the intel 13900KS/Z790 platform I currently have installed, enabling the Cache option on Karhu made the testing more reliable, especially anyone overclocking their Cache/Ring frequency. On AMD's AM5/X670 & X870 I have no clue what enabling cache on Karhu would do? On an AM5/X870 system what is the equivalent of the Ring/Cache frequency?
3 weeks ago
I´m going to flash a new Bios. I use a x870e Hero, 9800x3d, Patriot Xtreme 5 32GB (2x16GB) 8200 38-48-48-84.
I use normally 1:1 mode 6400c28 2133mhz cause i game quite often. I might try this time 2:1 mode 8000 or 8200 to check how it is in gaming.
Do you recomend 1001, 1002 or 1003?
3 weeks ago
1003 is fine on my side (9800x3D / 2x16 GB 6000 MT/s)