RAM version compatibility

[Imago]

Hello everyone!

I have installed in my system this RAM kit: Vengeance LPX CMK32GX4M2E3200C16 32 GB (2x16), version 4.34.

Online I found the same kit, but its version is 3.31.

Somewhere I read that if the version isn't the same the XMP could give issues and the PC can even fail to post.

Is that true or I can install the new kit?

Thanks to anyone who will anwer!

[Somerandomtechyboi]

2 hours ago, Imago said:

Hello everyone!

I have installed in my system this RAM kit: Vengeance LPX CMK32GX4M2E3200C16 32 GB (2x16), version 4.34.

Online I found the same kit, but its version is 3.31.

Somewhere I read that if the version isn't the same the XMP could give issues and the PC can even fail to post.

Is that true or I can install the new kit?

Thanks to anyone who will anwer!

send thaiphoon burner screenshot

 

according to corsair site 3.xx is micron and 4.xx is samsung but the ic revisions do matter if you want to mix match manufacturers and/or overclock

 

i suspect that 3.31 kit is micron rev e and your 4.34 kit to be crappy samsung c die which would make the 3.31 kit far superior to your kit but if your kit is samsung d die theyre actually pretty similar ics and i dont see why they wouldnt be able to clock 4000+ together even without different timings per channel and xmp is likely to work especially at slow 3200

 

imma summon @RONOTHAN## as he knows alot more about these newer platforms than i do cause i dont have any experience with newer platforms, just knowledge from reading around

[Imago]

7 minutes ago, Somerandomtechyboi said:

i dont see why they wouldnt be able to clock 4000+

As I can remember from the article I read some time ago (I can't retrieve it, sadly) it's because the XMP versions are different on different releases, and this can cause issues when XMP is enabled.

I used RAMMON to check the RAMs and it says "Samsung" on the DRAM manufacturer. Why you say they are crappy?

[Somerandomtechyboi]

12 minutes ago, Imago said:

As I can remember from the article I read some time ago (I can't retrieve it, sadly) it's because the XMP versions are different on different releases, and this can cause issues when XMP is enabled.

I used RAMMON to check the RAMs and it says "Samsung" on the DRAM manufacturer. Why you say they are crappy?

revisions

c die is only capable of ~3600 while rev e and samsung d die is more like 4600 or above

 

if youd like to test for revision set vdimm at 1.4v and primaries to 19-26-26-26 tras auto frequency to 3800 everything else auto, even with those crappy settings d die should post but cdie shouldnt be able to post

[Somerandomtechyboi]

found a d die reference here

just plug the primaries frequency to 3800 and vdimm at 1.4v should boot if its d die

 

btw what cpu and mobo?

[Imago]

I'm not going to do any overclock on the RAM or any other kind of stuff, just put them in my system to have more memory for my softwares. The 3200 given me by the standard XMP is more than enough for me.

Anyway, my CPU is a Ryzen 9 5900X with PBO enabled, MOBO is a Gigabyte B450M DS3H.

And, just to avoid go OP, I just need someone who can tell me if the different releases can work together or I have to find the same as the one installed, perhaps someone who has them installed on his/her system.

[Somerandomtechyboi]

17 minutes ago, Imago said:

I'm not going to do any overclock on the RAM or any other kind of stuff, just put them in my system to have more memory for my softwares. The 3200 given me by the standard XMP is more than enough for me.

Anyway, my CPU is a Ryzen 9 5900X with PBO enabled, MOBO is a Gigabyte B450M DS3H.

And, just to avoid go OP, I just need someone who can tell me if the different releases can work together or I have to find the same as the one installed, perhaps someone who has them installed on his/her system.

oc capabilities are a decent reference as to how similar the rams are, more similar = better chance of xmp or a manual overclock working

 

thing with c die is that it likes to be mistaken for b/d die by thaiphoon so only way to tell on a heatspreader ram would be to test its oc capabilities if you dont know what the version number says for specific ic revision

 

already shown a proper reference now you just try it out see if it posts at 3800 cause if it doesnt its most likely c die

 

though reading online it seems that 4.34 might be crappy c die but i havent seen anything that specifically states so, just 4.31 = bdie

 

another way to guarantee compatibility would be to buy bare pcb oem rams with the same ics as those should just work at xmp with your current sticks cause they have the exact same ics, for samsung sticks that match your corsairs thatd be m378a1k43db2/cb2 for d die and c die respectively, binning is completely irrelevant as jedec sticks arent binned afaik

[Imago]

So, if I find, for example, a kit with version 4.1 is more likely to work with my 4.34 while less compatible with 3.31?

[Somerandomtechyboi]

21 minutes ago, Imago said:

So, if I find, for example, a kit with version 4.1 is more likely to work with my 4.34 while less compatible with 3.31?

because theyre both samsungs and ic revisions with the same manufacturer will usually be compatible though xmp again isnt guaranteed to work since that relies on the ics capabilities but theres no worrry of the thing just not posting

[Imago]

20 hours ago, Somerandomtechyboi said:

because theyre both samsungs and ic revisions with the same manufacturer will usually be compatible though xmp again isnt guaranteed to work since that relies on the ics capabilities but theres no worrry of the thing just not posting

Ah, good to know.

Thanks!