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

What is your max stable ram speed/infinity fabric?

  • 3666/1833 or lower

    Votes: 25 18.4%
  • 3733/1866

    Votes: 27 19.9%
  • 3800/1900

    Votes: 47 34.6%
  • 3866/1933

    Votes: 3 2.2%
  • 3933/1966

    Votes: 4 2.9%
  • 4000/2000

    Votes: 19 14.0%
  • 4066/2033

    Votes: 1 0.7%
  • 4133/2066

    Votes: 2 1.5%
  • 4200/2100 or above

    Votes: 8 5.9%

  • Total voters
    136
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Whatever I do, I can't seem to hit more than 3733*1.00675 = 3758

If I use 3800, I can't even post... Not even with anything in AUTO... Although I could with a 5600X I had before this

4x8 GSkill (Hynix DJR?) 3600 CL16-19-19-38

Whatever I do, I can't seem to hit more than 3733*1.00675 = 3758

If I use 3800, I can't even post... Not even with anything in AUTO... Although I could with a 5600X I had before this
Tried higher SOC voltage? 4 dimms are hard on the IMC. Try 1.15v soc and 1.08v iod, may do 3800 then.
 
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^ This. With 4 dimms higher speeds are harder to hit, try with 2 sticks.
 
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Haven't tried beyond 3800/1900 as yet, as I have four DIMMs.

ZenTimings_Screenshot_27487367.8842992.png
5800x.png
 
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Well I wouldn't want that since I want to use 32GB
Can't recall which mobo it was I was looking at but an AM4 mobo had listed in the specs that high frequency was only guaranteed with 2 sticks and 4 was much lower range so if you want to hit higher frequency you can try to overvolt the soc by a hair and experiment with timings or get a 2x 16gb kit that can guarantee higher frequency.

Your trfc and tfaw may need to go higher than auto would set them for higher frequency, try tfaw 48 and trfc of 500ns or more.
 
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Haven't tried beyond 3800/1900 as yet, as I have four DIMMs.

View attachment 242982 View attachment 242983
A few can do above 1900 with 4 sticks, but you will probably need to up VDD18 voltage.

I would suggest tuning some timings, lots of unrealised potential :)

Ras 27 (ras+rp=rc)
Rrds/l 6/8
Faw 24
Wr 16
Rtp 8
Wtrs/l 8/12
Scl's 4
Rfc 480 or 496 is better than 490 :)

Hynix DJR?
 
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A few can do above 1900 with 4 sticks, but you will probably need to up VDD18 voltage.

I would suggest tuning some timings, lots of unrealised potential :)

Ras 27 (ras+rp=rc)
Rrds/l 6/8
Faw 24
Wr 16
Rtp 8
Wtrs/l 8/12
Scl's 4
Rfc 480 or 496 is better than 490 :)

Hynix DJR?
CJR.
 

DarkPoe

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Can't recall which mobo it was I was looking at but an AM4 mobo had listed in the specs that high frequency was only guaranteed with 2 sticks and 4 was much lower range so if you want to hit higher frequency you can try to overvolt the soc by a hair and experiment with timings or get a 2x 16gb kit that can guarantee higher frequency.

Your trfc and tfaw may need to go higher than auto would set them for higher frequency, try tfaw 48 and trfc of 500ns or more.

I really wouldn't want to spend more and just ditch these to get a little bit of performance... Just want to know if I can squeeze those 3800 as I could with my 5600X (must have had a better IMC?)
 
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DarkPoe

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On a side note, setting the Memory to 3800 and FCLK to 1866 (not the ideal 1:1 ratio) boots fine... So I guess it is just the IMC :(
 
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Okay, my suggestions should work for CJR, if you had DJR you might be able to do 464 or 448 rfc, below 480 is hard on CJR.
480 seems to work. Very slight improvements. Didn't change all the settings.
2000 MHz FCLK was a no go, at least with the same timings.
And I just realised the motherboard switches over to the other CMOS chip after failing to boot at 2000 MHz FCLK...

ZenTimings_Screenshot_27493050.5461029.png
5800x_2.png
 
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480 seems to work. Very slight improvements. Didn't change all the settings.
2000 MHz FCLK was a no go, at least with the same timings.
And I just realised the motherboard switches over to the other CMOS chip after failing to boot at 2000 MHz FCLK...

View attachment 243074View attachment 243075
Rrds must be 6 for faw 24 to work, rrdl can be 8, rtp must be half wr so 8, wtrs okay at 4, wtrl at 12 and rdrdscl/wrwrscl 4. Try that, should net you some BW and perhaps better latency.
 
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Rrds must be 6 for faw 24 to work, rrdl can be 8, rtp must be half wr so 8, wtrs okay at 4, wtrl at 12 and rdrdscl/wrwrscl 4. Try that, should net you some BW and perhaps better latency.
Here we go. Write speeds are back to 30400 though.

ZenTimings_Screenshot_27493068.9469619.png
5800x_3.png


@Taraquin Unfortunately it wasn't stable and I had to ease off a bit.

ZenTimings_Screenshot_27493275.3921222.png
 
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Zakaru91

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Hi I have assembled the pc recently, I have looked at all the pages of this discussion and I have found that I have higher voltages than all the screens concerning your configurations, should I worry? currently i ran pbo2 and for the ram i copied the timings of another user and they seem to run smoothly, could you give me some suggestions?
 

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Hi I have assembled the pc recently, I have looked at all the pages of this discussion and I have found that I have higher voltages than all the screens concerning your configurations, should I worry? currently i ran pbo2 and for the ram i copied the timings of another user and they seem to run smoothly, could you give me some suggestions?
Try to run testmem5 with usmus configuration 25 cycles. This 2000 fclk its without whea errors?

My recent changes and results, maybe I can go to lower my Vddp iod and ccd.
Currently Vddp 0.875, iod 1.00, ccd 0.900

Any tips to improve
cachemem-2.png
ZenTimings_Screenshot-1.png
 

Zakaru91

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Try to run testmem5 with usmus configuration 25 cycles. This 2000 fclk its without whea errors?

My recent changes and results, maybe I can go to lower my Vddp iod and ccd.
Currently Vddp 0.875, iod 1.00, ccd 0.900

Any tips to improve View attachment 244515View attachment 244514
I ran testmem5 usmus and high anta777 without errors, I have ram 4000 c16 2x8 b die single rank.
As for errors whea I am not aware of, I have read that above the frequency of 3800mhz they should occur but I still do not understand if it is something I should worry about, for now I use the pc about 3 hours a day for video games.
I'll try your timings later. Thanks
 

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@Zakaru91 It looks like those tests aren't running long enough. And you need to check if you're having WHEA errors for system stability. Look in your Event Viewer under Administrative Events. You can create a custom view that only looks for WHEA errors

EDIT: back on topic my old 5k series chip could only do 1866, 1900 would give WHEA errors, my new 5K series chip can easily do 1900 IF no WHEA errors with Dual Rank Dimms
 

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Zakaru91

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Try to run testmem5 with usmus configuration 25 cycles. This 2000 fclk its without whea errors?

My recent changes and results, maybe I can go to lower my Vddp iod and ccd.
Currently Vddp 0.875, iod 1.00, ccd 0.900

Any tips to improve View attachment 244515View attachment 244514
These timings do not like my ram, so much so that the pc did not start and I had to run the clear cmos, I should look for some guide to set the ram at best I'm sorry because your times sounded good, for now I'm back to 4000 c 16 and from the event log I see kernel errors but not whea
 
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@Zakaru91 Are those XMP profile timings? It looks like the TRFC2 should be left on auto as well as TRFC4 (auto again)

Or are those Ryzen Calculator timing suggestions?
 
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These timings do not like my ram, so much so that the pc did not start and I had to run the clear cmos, I should look for some guide to set the ram at best I'm sorry because your times sounded good, for now I'm back to 4000 c 16 and from the event log I see kernel errors but not whea
At what voltage you running my timmings
 

Zakaru91

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@Zakaru91 Are those XMP profile timings? It looks like the TRFC2 should be left on auto as well as TRFC4 (auto again)

Or are those Ryzen Calculator timing suggestions?
No the xmp 4000 c16 profile had latency of 65.5 ns, I'm using timings from a user with similar ram to mine.
Now I have set to auto trfc 2 and trfc 4 and check for errors, ty

At what voltage you running my timmings
1.5V, I don't know how much I could increase the voltage, I have PVS416G400C6K running at 1.45V
 
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@Taraquin

I think I finally could be bothered to fix 4066 with 4 sticks (Cold boot loop/sound issues)

Keeping this as a new daily :)


4066V16 TM5 2022 V3.jpg
 
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Hello Guys,

can anyone here help me optimize my RAM Kit?

Ive been running my 4x8 GB 3200mhz c14 modules @ 3400mhz with 1.38v

I would like to use 3600mhz but it would require around 1.45v in order to not crash or get errors in OCCT.

I didnt touch the SoC yet which is set to AUTO (1.1v) and usualy hits a max of around 1.08v.

cachemem 3600.png
zen.jpg
 
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Hello Guys,

can anyone here help me optimize my RAM Kit?

Ive been running my 4x8 GB 3200mhz c14 modules @ 3400mhz with 1.38v

I would like to use 3600mhz but it would require around 1.45v in order to not crash or get errors in OCCT.

I didnt touch the SoC yet which is set to AUTO (1.1v) and usualy hits a max of around 1.08v.

View attachment 251965View attachment 251966
Ras 28
Rc 42
Rrds 4
Rrdl 6
Faw 16
Wtrs 4
Wtrl 8
Wr 12
Rtp 6
Rdrdscl 4
Wrwrscl 4
Rdwr 10
Wrrd 3
 
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