X670 / X870 resource thread

[Shamino]

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:

Spoiler

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 

strixe-f 1515 

strix e a 1515 

crosshair hero 1515 

crosshair gene 1515 

crosshair extreme 1515 

creator 670 1515

creator b650 1515

strix 650E I

strix 670 itx

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.

[MilligramSmile]

How to check stability ?

[Zheega]

There is no single best way to check for stability. What I usually do is run Prime95 for about two hours (in "blend, all of the above" mode) to check for general stability and then run Karhu Memory test overnight.

Some general advice: extensive RAM tweaking is probably a waste of time and effort if you have an X3D CPU. You would benefit much more from tweaking PBO settings.

Another thing is that you never want to have your system right on the edge of stability. For example, in the past when I overclocked a lot, I would first decide what settings I want to use long-term. Lets say that I decided on +300MHz overclock at X voltage. Even if that setting was stable, I would also test +400MHz overclock at the same X voltage. And if that was unstable, I would either decrease the overclock to +200MHz at X voltage, or I would increase the voltage and repeat the process. 

[Silent_Scone]

For DRAM, I use Karhu RAM Test and TM5.

In the majority of cases, simply using Karhu has always been sufficient for me on AM4/AM5 platforms.

For CPU overclocking stability, I prefer to just use the system until I encounter an issue - this is personal preference. 

[MilligramSmile]

In general, I started looking for the minimum working SOC and gave up because the last one was 1.25 and after 42 minutes Prime gave 2 errors. Between manual 1.25 and Auto (1.285-1.290) is too little to sit and suffer.

Unless I was offered to lower the memory frequency from 6200 to 6000 and the timing from CL30 to CL28/26, then maybe the SOC will be lower than now. Is this true?

I don't want to sit and sort out the memory timings again to find a working 6000 MHz CL28/26 for the sake of low SOC...

[Zheega]

CL26 at 6000MHz might require even higher voltage than CL30 at 6200MHz. I suggest just going with 6000MHz CL30 and calling it a day. Why all this work for at most 1-2% improvement (or even less if you have an X3D CPU)?

[MilligramSmile]

Yes, I have X3D (7800X3D), but it will soon be 9800X3D. I hope I won't have to reconfigure the memory and for the same reason I don't want to change the timings and it's difficult for me.

[Yager27]

Hey guys, 7800X3D on B650E-F user here. Everything fines, just a Zentimings screenshot on my new Lexar 6000 CL26 A-DIE/SR, very tights timings but stable. Waiting for the new BIOS release if there is some gains...

[gupsterg]

ASUS say the TUF X670E-Plus Gaming WiFi supports 8000MT/s.

G.Skill say F5-8400J4052G24GX2-TZ5RK will do tCL of ~9.52ns at 1.4V.

 TM5 Ryzen3D PASS 7hrs 

All HW in use is as out of box.

Dram DQ drive strengths Pull Up P0 [48 ohm]
Dram DQ drive strengths Pull Down P0 [48 ohm]

DFE Read Training [Enable]

DDR Training Runtime Reduction [Disabled]

DDR5 Nitro Mode [Enable]
DDR5 Robust Training Mode [Enable]
Nitro Rx Burst Length [8X]
Nitro Tx Burst Length [8X]
Nitro DFE Vref Offset Limits [Disable]
Fclk VDCI Mode Pref [Predictive]

VDDG CCD Voltage [950 mV]
VDDG IOD Voltage [950 mV]

[74lobster]

Hi, excuse me, but this kit:

G.Skill - F5-8400J4052G24GX2-TZ5RK

is for Intel XMP and not for AMD expo...

Anyway, I have this memory kit:

G.Skill - F5-8000J3848H16GX2-TZ5NR

Can I use the same settings or I must change something ?

Thanks in advance.

[Silent_Scone]

Different IC, higher capacity. You'll be hampering performance by mimicking those settings and not using the motherboard auto rules.