What is your max infinity fabric on ryzen 5000? September 2021 edition

[Ibizadr]

What the most common voltage for 3800 Cl14? I'm quite stable at that and now want to reduce voltage, what you guys are costume to see at that speed and timmings. For now I'm at 1.5v but I think I can reduce it more. Also Im with ccd and iod on auto and I think the values a bit higher its better to reduce ram voltage first or that values first and then ram voltage.

 

[freeagent]

1.475-1.55 I would imagine. I am running 2x 16gb kits.. one will do it with 1.5 and the other 1.525. 14-15-15 is way easier, but a tad slower.

 

[Deleted member 215115]

I don't think it's doable with less than 1.5V unless you get really lucky and buy a god-tier kit.

 

[Ibizadr]

I don't think it's doable with less than 1.5V unless you get really lucky and buy a god-tier kit.

1.475-1.55 I would imagine. I am running 2x 16gb kits.. one will do it with 1.5 and the other 1.525. 14-15-15 is way easier, but a tad slower.

I'm at 1.5v 14-14-14 trfc 252 with 2x8gb b die kit. I will aim for ccd iod first since my ram voltage for now it's on average. My iod and ccd on auto its quite high I think.

 

[Deleted member 215115]

I'm at 1.5v 14-14-14 trfc 252 with 2x8gb b die kit. I will aim for ccd iod first since my ram voltage for now it's on average. My iod and ccd on auto its quite high I think.

If your SOC is around 1.1V then IOD should be ~1.04V and CCD ~0.99. These are fine.

 

[freeagent]

I’m at 1.065 iod and 1.15 soc, .999 on the others

 

[DLD]

Looks good man, you can try windows 10 debloater to speed up windows. Also try curve optimizer

As for further tweaking you might be able to run RAS and RC lower. Remember that RC=RAS+RP. You can try 28 44, 27 43, 26 42 etc and see how that works. You may be able to run RP lower aswell, maybe 15 or 14 but it might need more voltage.

I already use Curve Optimizer. I been running +200mhz and -20 all core. Have not messed with anything else. Holds around 4.6ghz all core in Cinebench R20 with a score of around 6.1k.

Might try lowering the timings you suggested but am I really going to gain much at this point? If I can get the RAM to stay under 50c at 1.5v then maybe we can get the main timings lower.

I'm also curious if we can get the frequency higher since 3800/1900 gives no errors? Might be some more room there since we put the main timings at 16.

 

[freeagent]

Yup set flat 16s and let er rip, she might have more left in her.

 

[Taraquin]

I already use Curve Optimizer. I been running +200mhz and -20 all core. Have not messed with anything else. Holds around 4.6ghz all core in Cinebench R20 with a score of around 6.1k.

Might try lowering the timings you suggested but am I really going to gain much at this point? If I can get the RAM to stay under 50c at 1.5v then maybe we can get the main timings lower.

I'm also curious if we can get the frequency higher since 3800/1900 gives no errors? Might be some more room there since we put the main timings at 16.

Lower ras/rc is probably most beneficial, others don't matter much. If you test core cycler you might be able to run some cores at - 30 which improves allcore speed

 

[Dar1usElite]

Change voltages back if it made no difference. Tried lowering tRFC, tWR/tRTP and scls yet?

Sorry for the delay in replies ive been flat out... Tried lowering the trfc below 496 and i got errors
scl's of 4 gave me errors (i cant remember what they were exactly, i can go back and re run the test to find out). And the current screenshot is of the run where i adjusted the wr/rtp values to what you said.
vdimm is at 1.42v aswell

 

[Taraquin]

View attachment 227181
Sorry for the delay in replies ive been flat out... Tried lowering the trfc below 496 and i got errors
scl's of 4 gave me errors (i cant remember what they were exactly, i can go back and re run the test to find out). And the current screenshot is of the run where i adjusted the wr/rtp values to what you said.
vdimm is at 1.42v aswell

Okay, try WR/RTP 20/10. Remember trrds 6/trrdl 8/faw 24, wasn't that stable? I must say CJR is difficult B-die and Micron B/E/H is a lot easier to work with

 

[Dar1usElite]

Okay, try WR/RTP 20/10. Remember trrds 6/trrdl 8/faw 24, wasn't that stable? I must say CJR is difficult B-die and Micron B/E/H is a lot easier to work with

i thought 6/8/24 was stable, but it didn't end up being stable, sometimes it would pass 20 runs, sometimes it wouldn't. ill try 20/10

Okay, try WR/RTP 20/10. Remember trrds 6/trrdl 8/faw 24, wasn't that stable? I must say CJR is difficult B-die and Micron B/E/H is a lot easier to work with

but yeah cjr is kicking my arse. it randomly decided it didnt want to remain stable at 16 19 19 19 56 despite passing 20 runs in the past. Im pretty sure i dropped trc to 55 and it didnt help either. but ill try it again at a later date

 

[Taraquin]

i thought 6/8/24 was stable, but it didn't end up being stable, sometimes it would pass 20 runs, sometimes it wouldn't. ill try 20/10


but yeah cjr is kicking my arse. it randomly decided it didnt want to remain stable at 16 19 19 19 56 despite passing 20 runs in the past. Im pretty sure i dropped trc to 55 and it didnt help either. but ill try it again at a later date

As someone else pointed out: If it is stable in every game etc, don't bother if you get a few rare errors.

I had a Ryzen 3600 with 2x8 rev E a year ago. I had set tRC to 55, seemed fine for hakf a year, not lockups in games, cinebench etc. When I ran Karhu and TM5 first time I got several errors. After setting tRC to 56 all errors went away. What does that say? Stress-stability and real world stability can be 2 different things. If you get a sole error using 6/8/24 and no errors at 8/11/32 I would stick with 6/8/24 since performance is better, but up to you

Just a suggestion: Try running ram at 1.4v, 1.38v or 1.36V, see if it works. Some CJR-kits have terrible voltage scaling.

 

[Dar1usElite]

As someone else pointed out: If it is stable in every game etc, don't bother if you get a few rare errors.

I had a Ryzen 3600 with 2x8 rev E a year ago. I had set tRC to 55, seemed fine for hakf a year, not lockups in games, cinebench etc. When I ran Karhu and TM5 first time I got several errors. After setting tRC to 56 all errors went away. What does that say? Stress-stability and real world stability can be 2 different things. If you get a sole error using 6/8/24 and no errors at 8/11/32 I would stick with 6/8/24 since performance is better, but up to you

Just a suggestion: Try running ram at 1.4v, 1.38v or 1.36V, see if it works. Some CJR-kits have terrible voltage scaling.

I did have it at 1.4 originally. I think I upped it thinking it would help stabilise it.

 

[tabascosauz]

I did have it at 1.4 originally. I think I upped it thinking it would help stabilise it.

ime with CJR voltage doesn't do much past 1.4V. Throw as much voltage at it as you want, it probably won't budge. I spent some time back in the day trying to stabilize 3800CL16 and it just couldn't get rid of the errors. 3733CL16 was repeatedly fine at 1.38V.

 

[Dar1usElite]

ime with CJR voltage doesn't do much past 1.4V. Throw as much voltage at it as you want, it probably won't budge. I spent some time back in the day trying to stabilize 3800CL16 and it just couldn't get rid of the errors. 3733CL16 was repeatedly fine at 1.38V.

Yeah it seems that way.

 

[Taraquin]

I did have it at 1.4 originally. I think I upped it thinking it would help stabilise it.

Try lowering it On another forum I talked to a guy with 2x16 cjr at 3800 and he ran 18-21-21-21 51 rc but managed 4/6/16 rrd/faw and 4/12 wtr at 1.35V. Seems there is big variance in CJR.

You run surprisingly good primaries for CJR, many struggle with below 20 rcdrd and rp, but some subs like wr/rtp, rrd/faw and wtr are weirdly bad.

 

[Dar1usElite]

Try lowering it On another forum I talked to a guy with 2x16 cjr at 3800 and he ran 18-21-21-21 51 rc but managed 4/6/16 rrd/faw and 4/12 wtr at 1.35V. Seems there is big variance in CJR.

You run surprisingly good primaries for CJR, many struggle with below 20 rcdrd and rp, but some subs like wr/rtp, rrd/faw and wtr are weirdly bad.

Yeah I seem to be in that weirdly bad category for the sub timings. Like I said I can do 16 19 19 19 56 and it won't crash in games or benchmarks. I think I'll just tinker with it and accept it will throw some errors. I had it down to the low 58ns range, not sure if it will go much lower.

 

[lunatik]

Hi, I've seen so many different recommendations for soc/ccd/iod/vddp voltage above 3800.. thought i'd just share my dr kit 4000/2000 cl16 (bios set voltages: soc 1.2v, ccd 1.09v, iod 1.12v, vddp 1v, i could probably lower them by 0.01-0.02v but more would result in instant whea errors, i don't remember the bios/chipset version where i initially tested it)

This is what i used daily for the last 6 months, haven't noticed any "degradation" or smth like that. Just be cautious if you are afraid of it..(those voltages are very close to "safe" max limits tho, also depending on the mobo you could have different set voltages in bios vs what you actually get)

Edit: i re ran some tests and with newer bios version and chipset i can actually lower ccd to 0.95v, iod to 1.05v and soc to 1.15v (idk what has changed since then, this didn't work before)

This was done 4.75 all core with the DR kit 4000/2000 cl16 https://www.3dmark.com/spy/24295422

My daily: 5600x on a 25 euro cooler, 4.65ghz all core with llc3 - 1.27V (ctr/hydra has showed my chip being both bronze and silver depending on different versions)

EDIT: 1.48V on ram. I don't think the L3 cache is correct since i'm on win11.. (on windows 10 it was 600+ on all with 4.85ghz)

 

[JawnyS]

i can get 3800 with tight timings on my 5900x and x570 hero 8 wifi, but anything over 1900if i cant boot, and if i can boot, it is super slow. surely my ram as room for it,

 

[Taraquin]

i cant get 3800 with tight timings on my 5900x and x570 hero 8 wifi, but anything over 1900if i cant boot, and if i can boot, it is super slow. surely my ram as room for it,

With those timings at 3800 you don't have much to gain at 4000+ anyways. As for timings try getting 2T gdm off stable. Remember that RAS+RP=RC, WR=2*TRP (with gdm 12/6 is best you can do since gdm rounds up CL, CWL, WR and RTP to even numbers) and RFC should be divideable by 16 on 16gb kits so 256 or 272 might be better.

 

[JawnyS]

With those timings at 3800 you don't have much to gain at 4000+ anyways. As for timings try getting 2T gdm off stable. Remember that RAS+RP=RC, WR=2*TRP (with gdm 12/6 is best you can do since gdm rounds up CL, CWL, WR and RTP to even numbers) and RFC should be divideable by 16 on 16gb kits so 256 or 272 might be better.

ok well im stable with those timing, im just disapointed i cant go over 3800 on this cpu, i havent tried 2t, is it better to go for 2t or 1t with gdm, i tried to lower trc to 37 or 38, but i get memory errors, 40 was the lowest i could get with the other timings that low, im at 1.49 dram voltage, ill try it 2t to see if my latency is better, and ill try trfc to 256 instaed of 260, i have 16 gb stick 2 stick

i tried with 2t gdm disabled, i get the exact same latency than with gdm on and 1t, ill test 2t in warzone to see if i see a difference in fps

 

[Taraquin]

ok well im stable with those timing, im just disapointed i cant go over 3800 on this cpu, i havent tried 2t, is it better to go for 2t or 1t with gdm, i tried to lower trc to 37 or 38, but i get memory errors, 40 was the lowest i could get with the other timings that low, im at 1.49 dram voltage, ill try it 2t to see if my latency is better, and ill try trfc to 256 instaed of 260, i have 16 gb stick 2 stick

i tried with 2t gdm disabled, i get the exact same latency than with gdm on and 1t, ill test 2t in warzone to see if i see a difference in fps

Sometimes flat 14 can work better, 14 14 14 14, but might be better with what you have. 2T is often a bit better, but slightly harder to get stable. Try setting RAS to 27, if you use 2T you can use RTP 5 and WR 10, on gdm lowest is RTP 6 since gdm rounds up. As for RFC it is a cycle timing so 257 to 272 should give same performance since it's in same cycle. 256 can give a bit better performance, while 272 should give same as 260 but require less voltage.

You should try drvstr 24 20 24 24 if running 2T. You can also try 1T gdm off, but that is much harder to run, for me 40 20 30 24 made it run. Anything else got errors or did not boot.

I run 4000cl16, but it requires a bit more soc and iod volt and that eats a bit from the core budget so performance is only marginally better than 3800cl15.

 

[JawnyS]

Sometimes flat 14 can work better, 14 14 14 14, but might be better with what you have. 2T is often a bit better, but slightly harder to get stable. Try setting RAS to 27, if you use 2T you can use RTP 5 and WR 10, on gdm lowest is RTP 6 since gdm rounds up. As for RFC it is a cycle timing so 257 to 272 should give same performance since it's in same cycle. 256 can give a bit better performance, while 272 should give same as 260 but require less voltage.

You should try drvstr 24 20 24 24 if running 2T. You can also try 1T gdm off, but that is much harder to run, for me 40 20 30 24 made it run. Anything else got errors or did not boot.

I run 4000cl16, but it requires a bit more soc and iod volt and that eats a bit from the core budget so performance is only marginally better than 3800cl15.

whats is your latency on aida with 4000cl16, im at 55 ns to 55.4 ns, depending on the run, but for me 4000mhz wont work somehow even 3933. i know my cpu can do it, and this ram kit is xmp 4000cl16. on my x570 steellegend i was able to get another kit stable at 3933 cl 16, but on the hero wifi i cant, anything over 3800 gets me a super slow boot

 

[tabascosauz]

whats is your latency on aida with 4000cl16, im at 55 ns to 55.4 ns, depending on the run, but for me 4000mhz wont work somehow even 3933. i know my cpu can do it, and this ram kit is xmp 4000cl16. on my x570 steellegend i was able to get another kit stable at 3933 cl 16, but on the hero wifi i cant, anything over 3800 gets me a super slow boot

Latency is a little high for 3800CL14 but I have similar issues at CL14 and I suspect that there's something fishy going on - I run 5900X with dual rank B-die as well (3600CL14 G.skill). Either Asus boards' memory topology, a limitation of the 5900X specifically, or just a Ryzen issue?

At 3800 flat 14s I'm at 54.4-55.0 but generally 54.8.

At 3800 flat 15 2T (which I run now bc it only needs 1.42V compared to 1.51V for CL14), I'm at 54.7-54.9, and much more consistent.

CL14 still gets consistently better bandwidth by a bit, it's just the latency number that doesnt move. I know @freeagent has observed the same phenomenon on his 5900X before but he runs 4x8GB.

It's not an issue of VDIMM, VSOC, or any of the minor voltages either, they're just fine and increasing them does nothing. The profile is stable and IF is stable, just latency.