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What is your highest stable ramspeed/IF on Ryzen 5000?

What is your highest stable ramspeed/infinity fabric on Ryzen 5000?

  • 3666/1833 or lower

    Votes: 7 17.1%
  • 3733/1866

    Votes: 7 17.1%
  • 3800/1900

    Votes: 11 26.8%
  • 3866/1933

    Votes: 2 4.9%
  • 3933/1966

    Votes: 0 0.0%
  • 4000/2000

    Votes: 11 26.8%
  • 4066/2033 or higher

    Votes: 3 7.3%

  • Total voters
    41
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Getting my 5600X soon and wondering what ramspeed/IF you get stable with ryzen 5000. Did this poll on 3000 and the vast majority got 3733 or 3800 then.
 

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Getting my 5600X soon and wondering what ramspeed/IF you get stable with ryzen 5000. Did this poll on 3000 and the vast majority got 3733 or 3800 then.
3800/1900 on my 5600X but that’s on 3600 RAM so can‘t complain.
 
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Havent been able to get my 5950x stable above 1900mhz - it does boot in 1933-2000 settings but not stable
 
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I thought I had 4000/2000 stable with my 5600x and Ballistix Elite sticks, but I failed at 45 minutes in the OCCT memory test even with loose timings and 1.45v vdimm. Best I can get 100% stable is 3866/1933 1.45v vdimm 16-18-16-39.
 
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I thought I had 4000/2000 stable with my 5600x and Ballistix Elite sticks, but I failed at 45 minutes in the OCCT memory test even with loose timings and 1.45v vdimm. Best I can get 100% stable is 3866/1933 1.45v vdimm 16-18-16-39.
How high was your tRCDRD and tRC at 4000? Both gave me issues when aiming for 1.45V and high speed, had to loosen some more.
 

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It looks like 1933 for sure, and possibly 1966. I can go up to 2166, run out of ram at 2133 but can run every single stress test, benchmark whatever and pass.. no errors logged by windows but occt got me @ 2100. I have it at 1900/1900 with four sticks right now and its pretty tight.
 

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How high was your tRCDRD and tRC at 4000? Both gave me issues when aiming for 1.45V and high speed, had to loosen some more.

You should have no problems whatsoever doing 16-16-16 at 4000 even with mediocre B-die. At CL14 maybe. At CL16, nothing to do with the Vermeer memory controller, you've just set a rather arbitrary limit for yourself of 1.45V VDIMM.
 
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You should have no problems whatsoever doing 16-16-16 at 4000 even with mediocre B-die. At CL14 maybe. At CL16, nothing to do with the Vermeer memory controller, you've just set a rather arbitrary limit for yourself of 1.45V VDIMM.
He said he has Crucial Ballistix. That is always Micron rev E or B which must run very loose tRCDRD and tRC compared to B-die. .
 

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He said he has Crucial Ballistix. That is always Micron rev E or B which must run very loose tRCDRD and tRC compared to B-die. .

I'm well aware of that and I wasn't addressing him. Your question:

Code:
Both gave me issues when aiming for 1.45V and high speed, had to loosen some more.

Unless I've misunderstood your sys specs and you don't actually have B-die? Short of CL14 there should be no issues whatsoever running flat timings at reasonable voltage on 4400 Vipers.

On the topic of Micron, Crucial now has some special sauce black magic that runs low tRCD on binned Rev.B, and there's no reason why tRC must be "very loose" compared to B-die, considering that most of the time tRC is similar across B-die, CJR/DJR and Rev.B and is borderline irrelevant to performance, compared to tCL and tRFC. If you meant tRP, Rev.B can scale it just fine.
 
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I thought I had 4000/2000 stable with my 5600x and Ballistix Elite sticks, but I failed at 45 minutes in the OCCT memory test even with loose timings and 1.45v vdimm. Best I can get 100% stable is 3866/1933 1.45v vdimm 16-18-16-39.

you could prob get that 4000 stable with very high tertiary timings. the problem is, your better off just doing tightened timings at a lower speed.

at 3600 cas 14-14-14 (not even tightened) I get get 0.5 nanosecond faster in latency test than at 4000 IF 2000, probably with margin of error, but still disappointing. I intend to tighten those timings a little thanks to @tabascosauz and probably stretch my gains further. i think 4000 is going to be on hold for me. i want to tighten up 3600 better and be content with that at 14-14-14
 
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I'm well aware of that and I wasn't addressing him. Your question:

Code:
Both gave me issues when aiming for 1.45V and high speed, had to loosen some more.

Unless I've misunderstood your sys specs and you don't actually have B-die? Short of CL14 there should be no issues whatsoever running flat timings at reasonable voltage on 4400 Vipers.

On the topic of Micron, Crucial now has some special sauce black magic that runs low tRCD on binned Rev.B, and there's no reason why tRC must be "very loose" compared to B-die, considering that most of the time tRC is similar across B-die, CJR/DJR and Rev.B and is borderline irrelevant to performance, compared to tCL and tRFC. If you meant tRP, Rev.B can scale it just fine.
Sorry, I have both B-die and rev E. Had to give up on the B-die and using rev E now as my GPU blasts hot air on the ram and B-die kept giving me errors when liading GPU hard, while rev E seems to trive with an hairdryer directed to it ;)

I am unable to run tRC below 56 on rev E at 3733, but B-die liked sub 40 fine. tRFC is even worse with rev E unstable below 525, but B-die øiked sub 260.
 
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I think B-die is very easy to overclock, why you can't?
400002.PNG
 
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I think B-die is very easy to overclock, why you can't?
View attachment 191837
No problem overclocking, 3733cl14 with tight subs were stable BUT, B-die is temp sensitive, my GPUs second fan directs hot air right at the ram and even though memtest etc went fine, a few minutes after I start mining or gaming I get bsod and the ram is uncomfortably hot to touch. I set a fan on top of the ram and problem went away, but I can't attach the fan an it looks aweful so I went back to rev E which apoarently likes to boil ;)
 
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How high was your tRCDRD and tRC at 4000? Both gave me issues when aiming for 1.45V and high speed, had to loosen some more.
tRCDRD is 19 and tRC is 62. I already had to loosen trCDRD to get 1966 OCCT stable.
He said he has Crucial Ballistix. That is always Micron rev E or B which must run very loose tRCDRD and tRC compared to B-die. .
It is Rev E
I'm well aware of that and I wasn't addressing him. Your question:

Code:
Both gave me issues when aiming for 1.45V and high speed, had to loosen some more.

Unless I've misunderstood your sys specs and you don't actually have B-die? Short of CL14 there should be no issues whatsoever running flat timings at reasonable voltage on 4400 Vipers.

On the topic of Micron, Crucial now has some special sauce black magic that runs low tRCD on binned Rev.B, and there's no reason why tRC must be "very loose" compared to B-die, considering that most of the time tRC is similar across B-die, CJR/DJR and Rev.B and is borderline irrelevant to performance, compared to tCL and tRFC. If you meant tRP, Rev.B can scale it just fine.
Well, the Rev. E is clocking very well but it certainly does not have that special sauce for low tRCD. I have to drop down to 3800 to get tRCD under 19. I haven't found any voltage adjustments that have changed that. I do think I can TRP and tRFC down a bit.
 

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No problem overclocking, 3733cl14 with tight subs were stable BUT, B-die is temp sensitive, my GPUs second fan directs hot air right at the ram and even though memtest etc went fine, a few minutes after I start mining or gaming I get bsod and the ram is uncomfortably hot to touch. I set a fan on top of the ram and problem went away, but I can't attach the fan an it looks aweful so I went back to rev E which apoarently likes to boil ;)

I was debating getting a 2x16GB B-die kit for my 5900X to see what I can do at 1.5V on a better A2 PCB. But I ended up sticking with my CJR for that very reason, B-die is not so happy when it hits 50C. Back when I still had my main PC in the NCASE the DIMMs would hit 55C in MW (I think I saw 59C once in CSGO) - if it was B-die it would probably be throwing in the towel lol.

Well, the Rev. E is clocking very well but it certainly does not have that special sauce for low tRCD. I have to drop down to 3800 to get tRCD under 19. I haven't found any voltage adjustments that have changed that. I do think I can TRP and tRFC down a bit.

8Gb Rev.E doesn't have the special sauce, it's old and not the apple of Micron's eye anymore. It's the expensive 16Gb-intentionally-cut-down-to-8Gb Rev.B that's doing 19-19-19 at 4400 out of the box. On either Rev.E or Rev.B I don't think you'll be seeing tRP below tCL like you would on B-die. Definitely not tRFC, you're stuck in the 500s with that one.
 
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Here's how it's doing right now. OCCT stable. I'm going to try again for 4000.
 

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tRCDRD is 19 and tRC is 62. I already had to loosen trCDRD to get 1966 OCCT stable.

It is Rev E

Well, the Rev. E is clocking very well but it certainly does not have that special sauce for low tRCD. I have to drop down to 3800 to get tRCD under 19. I haven't found any voltage adjustments that have changed that. I do think I can TRP and tRFC down a bit.
My rev E needs tRCDRD 20 at 1.39V to 1.44V and 21 at 1.45V+. I would try 20/21 and tRC 64 at 4000/200 if your bin is similar to mine.
 
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My rev E needs tRCDRD 20 at 1.39V to 1.44V and 21 at 1.45V+. I would try 20/21 and tRC 64 at 4000/200 if your bin is similar to mine.
I'm trying hard to avoid 20 anything. I think if I can't get it at 19, I'll settle for slightly better latency. Currently on 30 minutes OCCT stable. 30 to go. Way to spend my work day. :laugh:

Off hand, what current sticks are coming with Micron Rev B?
 
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I was able to lower quite a few other timings when I raised tRCDRD to 20 so I got a net perf gain.

Any single rank Crucial 16gb sticks are rev B I'm quite sure of. Most 16gb are dual rank, and there are few other than rev B (Samsung A I think and maybe Hynix DJR?) that is made as 16 sr.
 
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Didn't have to hit the 20's, but I did have to run 1.46 vdimm.
 

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freeagent

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I finally nailed 2k. I tried some of Pauls voltage settings from a screen posted in another thread. It got me in the door but still failed. So I brought SOC voltage up to a max of just over 1.2v, failed everytime. So I went down.. I landed at 1.156v and she passed! Super stoked about that. This program has been my bane for a couple of days now. Couldn't leave it alone.. I almost gave up.. but the errors started going away with less voltage.. sensitive girl..

Timings are a bit loosey goosey but I just wanted to establish a baseline. also it doesnt show clocks at 4850 because I snapped a screen too quick lol
 

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What's the best bus for the best latency with Ryzen 5000?

3800 CL14 > Latency around 57 ns
4000 CL16 > Latency around 55 ns

Why 3800CL14 get more latency than 4000 CL16???
 
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What's the best bus for the best latency with Ryzen 5000?

3800 CL14 > Latency around 57 ns
4000 CL16 > Latency around 55 ns

Why 3800CL14 get more latency than 4000 CL16???
How are the other subs? If other subs are kept equal and on CL is changed I can see why this happends. If other subs are also loosened it seems maybe ryzen 5000 prefers speed/BW over timings?

Results so far is that 1/3 can do 4000/2000 or greater while the majority sits at 3800/1900. An improvement from Zen 2 since there was about 50-50 on 3800/3733 and none above 3800.
 
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How are the other subs? If other subs are kept equal and on CL is changed I can see why this happends. If other subs are also loosened it seems maybe ryzen 5000 prefers speed/BW over timings?

Results so far is that 1/3 can do 4000/2000 or greater while the majority sits at 3800/1900. An improvement from Zen 2 since there was about 50-50 on 3800/3733 and none above 3800.
Idk. Only so much reliability and validity to a forum poll. I mean there are definitely some of us who are actually 4000/2000 stable but it took a ton of work. I’m wondering if we did a poll and asked everyone over 3800 to provide stability testing and screenshoots, if that number would be the same. Self reporting with no evidence is highly unreliable. It would be more interesting to have everyone post screenshots, tally the results and report percentages and speeds afterwards. To draw conclusions about anything would become much more valid. I could give a crap about dick swinging. I’d like to learn more about the science of speed, timings and the MCLK/FCLK relationship with different IC's through evidence based reporting. So, how about any of us with 4000/2000 do a screenie of an hour of OCCT memory test with cpu z, zen timing and Thaiphoon? I'll do mine after work today.
 
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