Help me identify Chip of this DDR4 RAM

[DarkStar]

I'm confirming it's Hynix but I am not sure which chip it uses. Can anyone help me identify? TIA

 

[tabascosauz]

I'm confirming it's Hynix but I am not sure which chip it uses. Can anyone help me identify? TIA

It's obviously some 8Gb Hynix fare but the last digit is not something that is common or promising. If you ask reddit, "1JR" seems to be a half capacity version of 16Gb AJR, probably decidedly mid at best. 3200 16-18-18 and 3600 18-22-22 are not exactly high end or even upper mid range bins.

 

[DarkStar]

It's obviously some 8Gb Hynix fare but the last digit is not something that is common or promising. If you ask reddit, "1JR" seems to be a half capacity version of 16Gb AJR, probably decidedly mid at best. 3200 16-18-18 and 3600 18-22-22 are not exactly high end or even upper mid range bins.

It’s that last digit that’s got me confused too . I get it, these aren’t high-end bins (we’re not talking 3200Mbps magic here). Honestly, I really don’t wanna tear these apart just to find out the actual chip or discover some relabeled G.Skill chips hiding inside .


Would be awesome to know the chips though, it’d make tuning the timings so much easier!

 

[tabascosauz]

It’s that last digit that’s got me confused too . I get it, these aren’t high-end bins (we’re not talking 3200Mbps magic here). Honestly, I really don’t wanna tear these apart just to find out the actual binning or discover some relabeled G.Skill chips hiding inside .

Would be awesome to know the bins though, it’d make tuning the timings so much easier!

Pretty much all Hynix fare after 8Gb CJR just behaves like 8Gb CJR but ranges from slightly better to much worse 8Gb CJR on timings. They all follow the same general behavior, no flat timings, average tRFC going down to a bit below 250ns best case (probably not 1JR), rather tRCD limited. Just look up CJR guides, drop expectations a bit, and roll from there.

idk how it would help much honestly, Hynix DDR4 isn't known for having room on timings. You can maybe drop tRC/tRAS a bit then maybe tRFC down to like 250-300ns if you're very lucky. If it's not DJR (which is usually self-evident in XMP freq over say 4400), then it's just mid to ok. Not too sure about the comment on bins, I was talking about 3200CL16 and 3600CL18 being a rather low bar.

Pumping voltage into any Hynix except DJR is not the best idea and even with top DJR the timings don't really respond to voltage, only freq. And if it's not DJR then basically nothing responds to voltage.

 

[DarkStar]

Pretty much all Hynix fare after 8Gb CJR just behaves like 8Gb CJR but ranges from slightly better to much worse 8Gb CJR on timings. They all follow the same general behavior, no flat timings, average tRFC going down to a bit below 250ns best case (probably not 1JR), rather tRCD limited. Just look up CJR guides, drop expectations a bit, and roll from there.

idk how it would help much honestly, Hynix DDR4 isn't known for having room on timings. You can maybe drop tRC/tRAS a bit then maybe tRFC down to like 250-300ns if you're very lucky. If it's not DJR (which is usually self-evident in XMP freq over say 4400), then it's just mid to ok. Not too sure about the comment on bins, I was talking about 3200CL16 and 3600CL18 being a rather low bar.

Pumping voltage into any Hynix except DJR is not the best idea and even with top DJR the timings don't really respond to voltage, only freq. And if it's not DJR then basically nothing responds to voltage.

Thanks a ton (bin was a typo I meant chips, corrected)! Could you point me toward some specific material to do some reading? Thanks again!

 

[ShrimpBrime]

You can utilize typhoon burner to tell you exactly what the ram ICs are.

Download Thaiphoon Burner

Download Thaiphoon Burner 17.4.1.2 Build 0902 - This application displays multiple information about Serial Presence Detect and allows you to modify the firmware of SPD EEPROM devices

www.softpedia.com

 

[tabascosauz]

Thanks a ton (bin was a typo I meant chips, corrected)! Could you point me toward some specific material to do some reading? Thanks again!

We used to use this guide as a starting point back in the day. It looks like it's been updated occasionally but it's still just a lot of mumbo jumbo and not much of a quick guide.

MemTestHelper/DDR4 OC Guide.md at oc-guide · integralfx/MemTestHelper

C# WPF to automate HCI MemTest. Contribute to integralfx/MemTestHelper development by creating an account on GitHub.

github.com

Curiously it does reference H16A (which if other internet is to be believed is the [better] base for H8"1") as being as voltage hardy as DJR (1.55V+). But it's really the first time I've ever heard anything about how 16Gb AJR and 8Gb "1JR" perform and the guide is otherwise silent as to those two, so this needs a lot more digging as to where that info comes from.

I have some super old and lazy timings laying around from years ago that should represent regular ol 8Gb CJR. There should be a fair bit of room left for optimization but being H8C it's a reference at least for primaries and some of the secondaries

 

[DarkStar]

You can utilize typhoon burner to tell you exactly what the ram ICs are.

Download Thaiphoon Burner

Download Thaiphoon Burner 17.4.1.2 Build 0902 - This application displays multiple information about Serial Presence Detect and allows you to modify the firmware of SPD EEPROM devices

www.softpedia.com

Thanks, but I already have it and it's like, "Oh it's some kinda Hynix". SS attached

We used to use this guide as a starting point back in the day. It looks like it's been updated occasionally but it's still just a lot of mumbo jumbo and not much of a quick guide.

MemTestHelper/DDR4 OC Guide.md at oc-guide · integralfx/MemTestHelper

C# WPF to automate HCI MemTest. Contribute to integralfx/MemTestHelper development by creating an account on GitHub.

github.com

Curiously it does reference H16A (which if other internet is to be believed is the [better] base for H8"1") as being as voltage hardy as DJR (1.55V+). But it's really the first time I've ever heard anything about how 16Gb AJR and 8Gb "1JR" perform and the guide is otherwise silent as to those two, so this needs a lot more digging as to where that info comes from.

I have some super old and lazy timings laying around from years ago that should represent regular ol 8Gb CJR. There should be a fair bit of room left for optimization but being H8C it's a reference at least for primaries and some of the secondaries

View attachment 395047

Checking it

 

[tabascosauz]

Thanks, but I already have it and it's like, "Oh it's some kinda Hynix". SS attached

Checking it

Classic thaiphoon lol

I think thaiphoon was more useful back in the 4Gb days (or maybe DDR3, I wasn't really in it back then) when there weren't that many ICs around. Thaiphoon was responsible for labeling like half of all H8C as "DJR", before DJR really even existed (essentially, actual DJR = CJR on crack and the best DDR4 Hynix made). But the sticks tell all - 8821C. Thought my 4Gb E-die was 4Gb D-die as well......there is a very big gulf between the two in performance lol. Again 042 code to the rescue, 4810E.

042 code is always authoritative for G.skill products, so you are already off to a great start knowing where to look. As far as I know its reliability continues into the DDR5 age (e.g. S820M, S820A).

 

[ShrimpBrime]

Thanks, but I already have it and it's like, "Oh it's some kinda Hynix". SS attached


Checking it

If it clocks like shit or needs looser than need be timings, FJR.

CjR will clock to 4600 with a slightly looser CAS.. DJR being similar, someone mentioned I think already. Wouldn't take more than 1.40v v-dimm

 

[VuurVOS]

Software reading with Thaiphoon Burner can be wrong. I got PNY memory on my AM4 platform. Thaiphoon claims it is dual rank Samsung.
Physical it was single rank. With tightening the tRFC to 260ns I found out it was Hynix 16Gbit so it is either AJR or CJR.

To be more sure what you have, you can try to tighten tRFC:

https://www.hardwareluxx.de/community/attachments/trfc-v26-png.706822/

 

[R-T-B]

Classic thaiphoon lol

I think thaiphoon was more useful back in the 4Gb days (or maybe DDR3, I wasn't really in it back then) when there weren't that many ICs around. Thaiphoon was responsible for labeling like half of all H8C as "DJR", before DJR really even existed (essentially, actual DJR = CJR on crack and the best DDR4 Hynix made). But the sticks tell all - 8821C. Thought my 4Gb E-die was 4Gb D-die as well......there is a very big gulf between the two in performance lol. Again 042 code to the rescue, 4810E.

042 code is always authoritative for G.skill products, so you are already off to a great start knowing where to look. As far as I know its reliability continues into the DDR5 age (e.g. S820M, S820A).

It also mislabeled some of the poopiest Samsung C-Die I have ever seen as Samsung B-Die lol.

 

[DarkStar]

Software reading with Thaiphoon Burner can be wrong. I got PNY memory on my AM4 platform. Thaiphoon claims it is dual rank Samsung.
Physical it was single rank. With tightening the tRFC to 260ns I found out it was Hynix 16Gbit so it is either AJR or CJR.

To be more sure what you have, you can try to tighten tRFC:

https://www.hardwareluxx.de/community/attachments/trfc-v26-png.706822/

Thanks a ton for the list! fiddling with it for last couple of days and this is what I'm currently at (ss attached). tRFC won't go below 460 (also tried 400 , doesn't train) so I'm guessing it's AJR/CJR from the list?

 

[mechtech]

if you have an asus mobo i think there is a setting in the bios to read ram also

 

[freeagent]

Typhoon is as old as the internet lol..

Maybe older

I am really surprised someone else hasn't written some modern code to read the memories

 

[DarkStar]

if you have an asus mobo i think there is a setting in the bios to read ram also

Yes, it only says hynix.

BTW, can anyone confirm if there's a list like this for DDR5 Hynix or Hynix A die?

[Übersicht] - Die ultimative HARDWARELUXX Samsung 8Gb B-Die Liste - alle Hersteller (07.07.24)

Die ultimative HARDWARELUXX Samsung 8Gbit B-Die Liste Inhaltsverzeichnis / Table of Contents » 8GB Module & 2x8GB/4x8GB/8x8GB Kits (SS, SR) » 16GB Module & 2x16GB/4x16GB/8x16GB Kits (DS, DR) » 32GB Module & 2x32GB Kits (DC DIMM) » SO-DIMM 8GB/16GB Varianten (SR/DR) » Häufig gestellte Fragen...

www.hardwareluxx.de

 

[tabascosauz]

Yes, it only says hynix.

BTW, can anyone confirm if there's a list like this for DDR5 Hynix or Hynix A die?

[Übersicht] - Die ultimative HARDWARELUXX Samsung 8Gb B-Die Liste - alle Hersteller (07.07.24)

Die ultimative HARDWARELUXX Samsung 8Gbit B-Die Liste Inhaltsverzeichnis / Table of Contents » 8GB Module & 2x8GB/4x8GB/8x8GB Kits (SS, SR) » 16GB Module & 2x16GB/4x16GB/8x16GB Kits (DS, DR) » 32GB Module & 2x32GB Kits (DC DIMM) » SO-DIMM 8GB/16GB Varianten (SR/DR) » Häufig gestellte Fragen...

www.hardwareluxx.de

I haven't seen a definitive master list on it, but there is some identification info on the hardwareluxx DDR5 thread

Generally though, you'll be able to tell just looking at the XMP/EXPO timings profile. For the primaries their DDR5 functions similarly to their DDR4 - no flat timings (flat timings = probably Samsung). The sweet spot bins will be Hynix (e.g. 6000CL30-34, 6400CL32, sub-CL30 at 6000), especially if tRCD/tRP is higher as mentioned, although stuff like 6000CL34 might be borderline. And beyond a certain freq or performance level (e.g. 8000+, or ~7000 without tCL being uber high as that's Micron), it's also only going to be Hynix.

Either H16A or H24M is what you will be looking for, they are both similarly capable.

 

[DarkStar]

I haven't seen a definitive master list on it, but there is some identification info on the hardwareluxx DDR5 thread

Generally though, you'll be able to tell just looking at the XMP/EXPO timings profile. For the primaries their DDR5 functions similarly to their DDR4 - no flat timings (flat timings = probably Samsung). The sweet spot bins will be Hynix (e.g. 6000CL30-34, 6400CL32, sub-CL30 at 6000), especially if tRCD/tRP is higher as mentioned, although stuff like 6000CL34 might be borderline. And beyond a certain freq or performance level (e.g. 8000+, or ~7000 without tCL being uber high as that's Micron), it's also only going to be Hynix.

Either H16A or H24M is what you will be looking for, they are both similarly capable.

View attachment 395244

 

[ShrimpBrime]

Typhoon is as old as the internet lol..

Maybe older

I am really surprised someone else hasn't written some modern code to read the memories

Old but functional. Was updated for DDR5 years ago.... XD

Go to your Asus bios under Tweaker's Paradise and enable SPD write.

It will pull the IC number.

For example, mine is A-Die part number -

H5CG48?EBDX014

Now you don't have to pull the sticks from your rig
enjoy

Some memory can be found at this site.
This is Original poster part number
Left out the letters between N and R and put the entire thing into the search bar.
This is the results. With some digging, could figure it out I think.
Edit
Typhoon burner means A/C F/J [R] so AFR or CJR. Looking at the search results below, it's likely Hynix AFR, but on off beat chance low bin CJR.

H5AN8G8NR-TFC Datasheet, PDF

H5AN8G8NR-TFC Datasheet. 821Kb/45P. Part #: H5AN8G8NAFR. Manufacturer: Hynix Semiconductor. Description: 8Gb DDR4 SDRAM Lead-Free&Halogen-Free (RoHS Compliant). 9 Results. Part #: H5AN8G8NAFR-PBC. Datasheet: 821Kb/45P. Manufacturer: Hynix Semiconductor.

www.alldatasheet.com

 

[VuurVOS]

BTW, can anyone confirm if there's a list like this for DDR5 Hynix or Hynix A die?

Yes there is:

Ryzen 7000/8000/9000 DDR5 OC

docs.google.com

 

[DarkStar]

Old but functional. Was updated for DDR5 years ago.... XD

Go to your Asus bios under Tweaker's Paradise and enable SPD write.

It will pull the IC number.

For example, mine is A-Die part number -

H5CG48?EBDX014

View attachment 395254

Now you don't have to pull the sticks from your rig
enjoy

Some memory can be found at this site.
This is Original poster part number
Left out the letters between N and R and put the entire thing into the search bar.
This is the results. With some digging, could figure it out I think.
Edit
Typhoon burner means A/C F/J [R] so AFR or CJR. Looking at the search results below, it's likely Hynix AFR, but on off beat chance low bin CJR.

H5AN8G8NR-TFC Datasheet, PDF

H5AN8G8NR-TFC Datasheet. 821Kb/45P. Part #: H5AN8G8NAFR. Manufacturer: Hynix Semiconductor. Description: 8Gb DDR4 SDRAM Lead-Free&Halogen-Free (RoHS Compliant). 9 Results. Part #: H5AN8G8NAFR-PBC. Datasheet: 821Kb/45P. Manufacturer: Hynix Semiconductor.

www.alldatasheet.com

Thanks! Will it work on DDR4? I mean, can it read the part number like you mentioned?

 

[ShrimpBrime]

Thanks! Will it work on DDR4? I mean, can it read the part number like you mentioned?

You did that at post #8.

Your memory IC is most likely Hynix AFR with a small chance of low bin CJR.

Review the link I left ya

 

[R-T-B]

Old but functional. Was updated for DDR5 years ago....

Kind of, but also not really. If you try to use it to write ddr5 it blanks the chip on a lot of platforms, lol. And half of the things it reads out with regards to auto-ID are often wrong. There's a reason he doesn't license it anymore.

 

[ShrimpBrime]

Kind of, but also not really. If you try to use it to write ddr5 it blanks the chip on a lot of platforms, lol. And half of the things it reads out with regards to auto-ID are often wrong. There's a reason he doesn't license it anymore.

He stopped licensing it before DDR5 release, so that's not the reason why.

You must elaborate "Write DDR5 it blanks the chip" because that part of the sentence doesn't seem to make sense.
________
You don't use this Typhoon Burner to write DRAM profiles.

You use DDR4XMP Editor, which actually has a branch for DDR5. But I think work on this was halted for non related reasons to Typhoon Burner, which just reads and extracts memory SPD.

 

[R-T-B]

You don't use this Typhoon Burner to write DRAM profiles.

If you were a shareware version licensee you did, that was an advertised commercial feature on thaiphoon burner, and it blanked ddr5 spds on a few. Shortly after those first reports the program vanished from the usual official source so yeah. I'd be careful actually, the .com distributing it now is not the authors old site and gives me malware vibes (this is just best guess because I do not have hashes to compare and virustotals are useless on programs like this).

I was a shareware licensee across the transition period, FWIW.