RAM oc assist please (b-die/x570)

[funsoul]

Hi all!

Starting to play with ram again. The struggle is real! lol

This time with a 3700x on an asus x570 gaming wifi+. IF runs 1900 no problem using this cpu (5900x could only get to 1866). Using the nicer Galaxy sticks, decent b-die. vSOC, VDDG CCD, VDDG IOD and CLD0 VDDP are all on Auto

Any guidance, tips, etc would be hugely appreciated! 100+ tests and still feel like I'm pounding nails with my forehead lol Definitely feel I'm missing 1 or 2 simple settings. Raising vSOC, VDDG CCD, VDDG IOD and CLD0 VDDP haven't seemed to have any impact on stability. 
TIAAAAA!!!!

update: also looking here ( www.techpowerup.com/review/amd-ryzen-memory-tweaking-overclocking-guide/8.html ), maybe a change to procid? Looking at dram calculator, it's showing c16 1T...should I just try the fast settings? Would that really be better than c15 2T? 1.35-1.38v (up to 1.58ishv runs great) but it's showing high volts for VDDG CCD (1.075), VDDG IOD (1.075) and CLD0 VDDP (1.050) 

So far I've tried the following:
- sheer speed, gear down enabled, 4333MHz. DOCP sets the primaries as 19-25-25-25-45 (rest of timings stay on auto). Didn't really proceed here as I realized gear down was disabled lol. Might be worth a check later but, from what I see on the bot, nobody who ran this cpu tried anything over 3800Mhz.

- 14-15-15 2T- Manually keying in those timings the system boots and y-cruncher 2.5B passes at 1.48v. Changes to any timings other than those 4 were either insta-unstable and could not be stabilized with up to 1.59v (sticks have run 1.99v np and never break a sweat at voltages of 1.65v but on this setup, anything over 1.585v gets really wonky).

- 15-15-15-30-45 2T- Manually entered these values, left everything else on auto. y-crunch 2.5B passes np at 1.45v so gave CR1 a try. However, changing any timings has been problematic so far. I'm using the info here as my guide: www.overclock.net/threads/a-guide-to-ram-overclocking-on-zen-3.1798093/ particularly the stuff noted below. Almost any setting I change gets me stuck in the test every voltage from 1.45-1.59 and still it's unstable. Fwiw....y-cruncher tends to crash at the 20% mark.

- - 15-15-15-30-45 1T- Can get in to windows @ 1.465v but could never get stable at any voltage (up to 1.59v) so gave that up and went back to CR2 testing.


Anta777s guidelines for timings:

CL=CWL even

CWL=CL-1 odd

RAS=RC-RP

RP=RCD

WR=CL even 100% stable

WTRL=RTP=WR/2

WTRS=3(4)

RCDWR=8

SC=CCDS-3=1

SCL=CCDL-3=2,3,4

SD=DD

RDRDSD/DD=4+RPRE-1

WRWRSD/DD=4+WPRE-1

RDWR=CL-CWL+5+WPRE

WRRD=CWL-CL+4+RPRE

tRFC ns convert timings, round up to the nearest divisible by 16. Divideable by 8 on 8gb sticks, by 16 on 16gb sticks. This part apparently only applies yo Intel and Micron ram, but can be used as general guideline.


Example 2x8GB Samsung B-die running 1.45V, good bin to bad bin in ():

3800

CL 15 (14-16)

RCD(RD\RW) 15 (14-17)

RP 15 (11-16)

RAS 30 (21-32)

RC 45 (30-50)

RRDS 4

RRDL 6

FAW 16

WTRS 3 (3-4)

WTRL 8 (6-12)

WR 14

RFC 272 (256-304)

RDRDSCL 4

WRWRSCL 4

CWL 14 (12-16)

RTP 7

RDWR 8 (7-10)

WRRD 1 (1-3)

Rest auto

[georgekokovinis]

1) Ryzen ram calculator is a piece of shit.

Reason : No software in the world can replace the experience of an advanced memory configurator ( bencher )
Take 5 identical boards and 5 cpus ( imc controllers ) and 5 sets of ram sticks.
Be it A0, A1, A2 b-die.

NO same settings will ever work on different Hw combinations.

2) Here comes the human. The hypothetical person who has spent thousands of hours on memory setup modelling.
It is entirely up to him to find best settings for any given HW.

3) Unfortunately this experience is not transferable.

4) Stef, if you ask about vsoc, fclk and you make references to auto voltages, then I strongly suggest you read some excellent articles explaining how this SOC platform is calibrated.

Trully sad to type the truth, but memory tuning on Amd ddr4 is not something served ready in a silver plate.

What I can say is :
Forget z170, z270, z370, etc.

You dont have here tools like :
System agent.
Standby voltage.
Pll termination voltage.

Vsoc is only for fclk.
1.15v is enough for fclk 2000.
Vddg. Bullshit. 1.10v.

What is left ?
Vram lol.

Good studying buddy.
There is a lot to learn.

[funsoul]

Thanks George Yeah...totally agree on all fronts especially intel vs amd lol

Been reading and playing with the setup a couple months, slowly getting the hang of it. I test and compare voltages,...so far, what people recommend/advise/whatever are MUCH higher than needed and tuning will definitely include dialing volts further down. Calcs, auto settings, etc are notoriously for overvolting but is designed works for the most setups possible (so can be good starting points for tuning but, yeah, each setup need tuning from there).

I'll fiddle around a bit more, post some screenies n' maybe someone will spot issues (and mebbe point out tips for improvement lol).

[georgekokovinis]

As a general advice.

I have A1 galax Hall of Fame.
4200/12-11-11-24 1T with 2.02v.
On z270.

This set cant do even 3800/12-12-28-1T on ryzen. Went up to 1.90v under cold. No good.
1:1 fclk-uclk-memclk.

2) A2 b-die.
On Apex xi 4933/14-13-13-28-2T with 1.98v.

This set gave me 4533 / 16-17-17-37-2T with 1.65v
but running asymetrical.
1:2.
With imc under cold I can go close to 4700 with 1.85v.

Totally different ball games.

[funsoul]

yeah man...totally hear ya'. Guess we have similar sticks (mine are the 4000 HoF's, though...4133 12-11 1T @1.99v on z270). 4533 is sweet! That definitely makes up for the asynch penalty. Beauty! For some reason, on my setup, anything over 1.58-1.59v and the system just goes crazy. Once I figure out what can be done at 3800/1900 I'll circle back for testing at 4333+.

[freeagent]

SOC and IOD will probably need a bump, tough to say. I only played with an XT for a brief time. Id did 1900 1:1 as well, but not sure what it could do unsynched. I would try 1900 FCLK, and whatever you want to run your ram at. I was able to squeeze off 4600 on my 5900X, wouldn't post any further. But I didn't really try too hard, as I only have a couple of pairs of 3200C14.