[Sammelthread] Samsung 8Gbit DDR4 C-Die K4A8G085WC - OC-Ergebnisse im Startbeitrag! [updated]

Hey guys - I think this Thread is perfect for my question because the Patriot Viper could be C-Die

My system:
- Ryzen 3100
- Asus TUF B550m Gaming Plus

This system is working with Patriot Viper Steel 16GB 3600 CL18 (XMP) but I recognized I need more RAM for better Video editing.
So I purchased a 64GB Kit - same brand- same timings - not working

I tried everything - DRAM Calc. etc. switched to a gigabyte b550m

The 64GB Kit isn't working with 1,35V - most stable on 3600 is 1,29 Volt (Gigabyte MB showed 1,35V on 1,31V setting O__O )
But it isn't "stable" at all...

So I did some tests and the question is: Which Kit to choose?

I bought Ryzen 3100 and 16GB because I just wanted a new platform (from old i7 920) and to update it later.
Should I keep 64GB and switch later to a new CPU (In the hope its getting better)
OR should I keep 16GB and change CPU and RAM later.

These are the measures in User_Bench

64GB @ 3200 CL16 - 20 - 20 - 38 - 61. 1,3V
- Multicore: 33,9GB/s
- SingleCore: 28,9GB/s
- latency: 83,8NS

64GB @ 3333 CL16 - 21 - 21 - 42 - 66 (Not optimized till the end). 1,3V
- 34,5 GB/s
- 29,8 GB/s
- 82,6 ms

16GB @ 3600 CL18 - 22 - 22 - 42 - 69 (XMP) - 1,35V
- 36,6 GB/s
- 30,1 GB/s
- 72,5ms

16GB @3600 CL16 - 22 - -22 - 42 - 69 (Just tried out - could be optimized)
- 37 GB/s
- 30,5 GB/s
- 72,8 ms

One of the problems is that there are only 4 Corsair 2x32GB RAM sticks in the compatibility list from Asus
So maybe its just stupid to drive 4x32GB later :(
 
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If your kit consists of two 32GB modules, then it was built from 16Gbit ICs instead. From sixteen 8Gbit ICs in 2Rx8 organization it is only possible to build 16GB modules, so all 8Gbit ICs like S8C are out of question for larger modules.

Do you have a photo of the modules? For Patriots kits it is possible to identify the ICs based on the label, even when the IC manufacturer is not programmed in the SPD.
 
If your kit consists of two 32GB modules, then it was built from 16Gbit ICs instead. From sixteen 8Gbit ICs in 2Rx8 organization it is only possible to build 16GB modules, so all 8Gbit ICs like S8C are out of question for larger modules.

Do you have a photo of the modules? For Patriots kits it is possible to identify the ICs based on the label, even when the IC manufacturer is not programmed in the SPD.
image.jpg


sure :)
 
Fixed: So the ICs used are Samsung 16Gbit M-Die.
 
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Where did u get that? And could I get different results now? :(
Just want to know to check the 16gb kit
 
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Oops, I misread the label. Info is corrected now. The Die information does not change the OC capabilities, it can just help finding optimal settings quicker.

icliste8zjoh.png
 
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Hi guys i need some help with getting my ram working properly.
I recently exchanged my ram from crucial ballistix sport 3000mhz to 2x8Gb Kingston Hyperx RAM at 3200mhz and thats when the problems started.
I cannot get the ram to work at 3200mhz with xmp or setting the timings and voltage manualy.PC boots to win but any game crashes almost immediately.
I think the ram is C-die.at least that is reported by taiphoon burner,i cannot find the die type from the sticker on the ram.
My specs are:
AMD Ryzen 3600
Gigabyte b450i aorus pro wifi.
 

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According to the label the ICs have been relabeled by Kingston, so for now just treat them as S8C.

DDR4-3200+ should not really be an issue with S8C, a Zen2 CPU and decent motherboard. Usually the struggle starts at 3600+ 😅
 
I managed to get my (sub)timings @3800Mhz a bit lower again:

cddsy_3800_18-21-21-39.png


This is stable tested with MEMbench single 100% (5 runs) without errors, my 3600XT/B550 combo (PBO+200Mhz, scalar x5) also takes the 1900MHz FCLK well and runs stable under prolonged AIDA64 load.
Pretty happy with this result :-)
 
@emissary42 sehr interessantes Bild was welcher Ram IC darstellt. Passt zwar nicht ganz zum Fred aber meine Corsair Version 3.31 sind Micron E-Die hab von unten reingeschaut und es ist DR als 32 GB Kit.
Der Rest davon hab ich im SPD Fred gepostet.
 

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Das Bild ist nicht von mir. Tatsächlich sind Ver3.31 bei Corsair wild gemischt und konnten auf schwachen Specs vereinzelt auch M8B/M8D sein, obwohl es neben Ver3.33 und Ver3.34 auch Ver3.32 gibt. Bei deinem Kit sollten die "ausgelesenen" M8E aber schon passen.
 
Moin, bin ein ziemlicher Noob und bitte um Hilfe :d

Also ich habe diese Corsair Module (2x8GB): CMK16GX4M2B3200C16 - 3200er
Mainboard: Asus Z490 TUF Gaming Wifi
CPU: i5 10400F

laut Taiphoon sind Samsung B-Dies in den Modulen verbaut, der Versionscode (4.32) lässt aber darauf schließen, dass es C-Dies sind - deswegen poste ich mal hier.

ich habe die RAMs bei einer Frequenz von 3466Mhz mit den Timings 18/20/20/34 stabil gebracht (bei 1,35 Volt, aber die zu erhöhen bringt ja nicht viel bei C-Dies glaube ich).

Nun wollte ich noch höher gehen - genauer gesagt auf 3600Mhz. Selbst mit lächerlichen Timings von 25/27/27/40 (und einer Spannung von 1,38V) will das System einfach nicht booten.

Was mache ich falsch bzw. gibt es noch andere Parameter, die ich im BIOS ändern kann/muss?

Hat jemand die gleichen Riegel und kann Erfahrungswerte posten?

Vielen Dank!! LG
 
Moin, bin ein ziemlicher Noob und bitte um Hilfe :d

Also ich habe diese Corsair Module (2x8GB): CMK16GX4M2B3200C16 - 3200er
Mainboard: Asus Z490 TUF Gaming Wifi
CPU: i5 10400F

laut Taiphoon sind Samsung B-Dies in den Modulen verbaut, der Versionscode (4.32) lässt aber darauf schließen, dass es C-Dies sind - deswegen poste ich mal hier.

ich habe die RAMs bei einer Frequenz von 3466Mhz mit den Timings 18/20/20/34 stabil gebracht (bei 1,35 Volt, aber die zu erhöhen bringt ja nicht viel bei C-Dies glaube ich).

Nun wollte ich noch höher gehen - genauer gesagt auf 3600Mhz. Selbst mit lächerlichen Timings von 25/27/27/40 (und einer Spannung von 1,38V) will das System einfach nicht booten.

Was mache ich falsch bzw. gibt es noch andere Parameter, die ich im BIOS ändern kann/muss?

Hat jemand die gleichen Riegel und kann Erfahrungswerte posten?

Vielen Dank!! LG
Probiers mal mit 1,33V oder 1,34V, die C-Dies reagieren wohl nicht gut auf erhöhte Spannung. Zudem: schalte GDM an, mit echtem 1T ohne GDM hatte ich auch kaum Spielraum über dem was XMP automatisch macht, mit GDM laufen meine C-Dies auf 3800Mhz 18-21-21-39 stabil (siehe 3 Posts über deinem)
 
die Spannung wär ja
Probiers mal mit 1,33V oder 1,34V, die C-Dies reagieren wohl nicht gut auf erhöhte Spannung. Zudem: schalte GDM an, mit echtem 1T ohne GDM hatte ich auch kaum Spielraum über dem was XMP automatisch macht, mit GDM laufen meine C-Dies auf 3800Mhz 18-21-21-39 stabil (siehe 3 Posts über deinem)
die Spannung wär ja dann unter der vom XMP Profil vorgeschlagenen?

ALso einfach nur GDM aktivieren und dann sind die Chancen besser? Danke!

Und noch eine Anfänger-Frage: wo aktiviere ich denn dieses GDM (heißt das Gear Down Mode?) - Board ist Asus TUF Gaming Z490 (Intel)
 
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Und noch eine Anfänger-Frage: wo aktiviere ich denn dieses GDM (heißt das Gear Down Mode?) - Board ist Asus TUF Gaming Z490 (Intel)
Diese Einstellung ist AMD spezifisch, wirst du also vergeblich suchen. Auf den Intel Plattformen die Command Rate auf 2T anheben, wenn notwendig.

Scheinbar kommen diese Dimms doch nicht mit Tempsensor ??
Hat jemand was anderes behauptet?

Sensoren sind auch bei anderen Modellen nicht garantiert.
 
edit: ich habe ein Intel board
Diese Einstellung ist AMD spezifisch, wirst du also vergeblich suchen. Auf den Intel Plattformen die Command Rate auf 2T anheben, wenn notwendig.


Hat jemand was anderes behauptet?

Sensoren sind auch bei anderen Modellen nicht garantiert.
Danke für die Antwort! 2T finde ich leider nicht, nur 2N,ist dass das gleiche?
 
Wird oft synonym verwendet.
 
Hello friends, greetings from Brazil! Unfortunately I don't know how to write in German and I thought it would be better to post in English, I hope it's not a problem.

First of all my setup current setup is: Ryzen 5800X, Asus ROG Strix B-450f (surprisingly running the 5800x well with PBO2) and 32GB (4x8) Corsair Vengeance RGB Pro 3200mhz CL16.

I was also fooled by Typhoon Burner and only after I really broke my head and saw that it was not possible to use the Ryzen Memory Calculator settings, I realized that the memories were from version 4.32, that is c- die.

Before, the maximum I had managed to stabilize was 3400mhz using 1.42v and with relaxed timings (it seems that my memories can operate at relatively high voltages).

After this discovery I found this post on the forum that is for sure the best about samsung c-die. After reading all the posts I could configure my memory to run very-stable at 3600mhz, 18-22-22-22-42-64 with tRFC630 (AIDA64 for 6h+, Prime95 Large FTTs 6+ hours, OCCT, RealBench, tm5, memtest86, etc). These configurations are basically identical to the Corsair 3600 CL18 kit. Below are all the settings in ZenTimings. For ProcODT 36.9 was ideal and CAD-BUS was what really stabilized the configuration (30-24-24-24). I'm using 1.38V in VRAM, VSOC in 1.1 (auto) and the rest of the voltages also in auto. I already saw that it is possible to tighten the timings of this configuration a little more.

3600.jpg


I am already happy to be able to transform a 3200CL16 kit into 3600CL18 for free, but I believe it is possible to get more. However, all attempts to run at 3666mhz or 3773mhz or 3800mhz have failed. I can even boot and run AIDA64 for a few minutes and that's why I believe it is possible to stabilize.

In my best attempt I got 3773mhz 18-22-22-22-48-87 (auto). I actually managed to pass the entire tm5 test usmus1 profile. However I have used the OCCT Extreme large data test because it usually detects errors before AIDA64. I've already managed to run about 30m of this test and then it starts to fail. Aida takes a little longer than that but it also shows errors. Below are the settings in Zen timings.

3733.jpg


I'm using 1.36V (it seems that a lower voltage helped to have more stability), VSOC 1.1, VDDG CCD and IOD set to 1.05v which gave better results as well. The CLDO VDDP is currently at 0.850v. CAD-BUS appeared to work best at 24-30-24-24.

I've tested:
Larger and smaller VSOC values without much success.
Highest CLDO VDDP (1,025) and didn't make much difference.
Some VDDG values that were less stable.
ProcODT 40 without boot.
Some other CAD-BUS combinations, but only few trials that did not bring improvements.

Regarding the IF, my setup was running before with an R5 3600 and it seemed that the IF was not going beyond 1833-1866mhz. However now that I have a 5800X I have already tested 2000mhz IF (memory at 3600mhz) using 1.1v SOC and it worked fine.

I feel that it is close and that the problem now is not the memory stabilizing, but the mem controller. However, I no longer know what to change and I may have reached the limit of my motherboard with 3600mhz - not sure about that. I would like to see with you if you have any tips for stabilizing the memory controller, SOC, etc.

Thanks and best regards!
 
For DDR4-3600 or higher it could be necessary to lower the vdimm to 1.325V or even 1.300V to get stability. That's something you can try for 3733/3800 CL18-22-22-22.
 
Hello Reous and thanks for the answer!

So, with this currently configuration the system won't boot with 1.35v or lower voltages - i don't know if there are ProcODT or CAD-BUS values that will enable a reduction in voltage but so far I haven't been able to lower 1.36v beyond.
 
ProcODT has a little effect to vdimm but not as much as you need. Other option is to change GDM to off + CR 2T and try CL19 with 1.25 / 1.30V. Just to see if it is stable with lower voltage.
 
I managed to boot (sometimes yes, sometimes not) with this configuration using1.315v or 1.32v but still with errors right at the beginning of the tests (OCCT or AIDA64). Is there any tip to stabilize with those lower voltages?
 
You can try different Rtt settings like 7-3-1 but i don't believe this will help.
 
I've already managed to run about 30m of this test and then it starts to fail. Aida takes a little longer than that but it also shows errors.
If these settings only error out after long(er) test durations, you might have temperature issues. As a quick test, temporarely place a fan over the modules and see if it helps stabilize them.
 
So, as Reous adviced i was able to make 3600mhz work with 1.325v what seems to me to be a good step forward with less voltage. I am now testing to lower the CAD-BUS to the default values 24-20-24-24 and then I will try scale the frequency step by step (3666, 3773, 3800). emissary42, as for the temperature I will monitor more closely but I believe that with 1.325v and lower values for CAD-BUS they may be better (Max 40C). For higher frequencies do you indicate different values for the timings (I am currently 18-22-22-22-42-64)?
 
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