Help identifying what Hynix IC's my RAM is using.

[Marcus L]

Here's a SS of thaiphoon burner

 

[Onasi]

Hynix DJR from what I can see. @ir_cow can confirm or deny.

 

[Marcus L]

Yea, that's what I was thinking but they really are terrible, won't OC to 3800 from 3600 upto 1.4v so I am trying to make sure I know what IC they are to determine if I can safely try more voltage, shoulda kept my b-dies before this set but they were only 2x8GB and a pretty old kit so couldn't find the same kit again to add another attached an aida run at the current settings

 

[Onasi]

@Marcus L
Eh, that happens, lottery and all. Not like there is too much benefit to increased freqs with a 5700X. If you could tighten up the timings (even more than currently, I should amend) while staying at 3600 you might overall get more out of it, methinks.

 

[Marcus L]

Any suggestions, see zen timings SS

 

[Onasi]

Will it do 14-14-14 or 14-15-15 on the primaries at all? Can afford to go a bit looser on the others, I think. This is just me spitballing, though, I’ve been out of the memory OC/tweaking game for several years now and haven’t worked with Hynix DJR, so not sure on the behavior there.

 

[oxrufiioxo]

@tabascosauz might have some input but I wouldn't expect much DJR is shite.

Tightening timings is definitely your best bet but I wouldn't expect much Trc/Trfc are your best bet. I wouldn't expect much below 16 if even that on the primaries.

 

[ir_cow]

Will it do 14-14-14 or 14-15-15 on the primaries at all? Can afford to go a bit looser on the others, I think. This is just me spitballing, though, I’ve been out of the memory OC/tweaking game for several years now and haven’t worked with Hynix DJR, so not sure on the behavior there.

Lowest you can do with Hynix DJR is CAS 16, the other values are 20+. I'll have to check my old notes, it's not anywhere closse to B-Die low. DJR strong suite is going up in frequency. Good for Intel, not so much for AMD which benefits most from 1:1 ratio thingy.

Hynix CJR is similar, but can take the voltage to go up as high in frequency. Won't do 1.6V, just cooks it, while DJR can.

Only ones that can do CL14 is Samsung B-Die.

Edit: From one of my reviews. 16-19-19-39 @ 1.6V for DD4-3600. Or 22-32-32-52 @ 1.6 for DDR4-5333

Hynix really doesn't scale down at all. As we see with DDR5, Hynix knows how to go up

I'm also not positive it's DJR. Could be CJR at 3600. Easily way to tell is if it shits itself at 1.6v . That or take the heatspreader off.

 

[Onasi]

I'm also not positive it's DJR. Could be CJR at 3600. Easily way to tell is if it shits itself at 1.6v . That or take the heatspreader off.

I am mainly basing that off what I heard down the grapevine. Talk is that Dual rank is DJR and Single is CJR on TG modules. Went from that. Seeing that we’re dealing with DR here I made the call. The definite answer would be found by disassembling the module, yeah.

Edit: Actually, scratch that, Thaiphoon says single rank. That’s unusual, I have mostly seen dual rank on 16 gig modules. Huh.

 

[ir_cow]

@Onasi I see. Yeah you have more information than me on this type of stuff. I don't keep up on these things. Definitely seen DJR and CRJ on single rank and dual rank 3600 MT/s. I have both for both.

Been a while since I played with them. If I recall they act similar (and timings) at 3600, but CJR doesn't scale up much more because it can't take the voltage required.

 

[Marcus L]

Lowest you can do with Hynix DJR is CAS 16, the other values are 20+. I'll have to check my old notes, it's not anywhere closse to B-Die low. DJR strong suite is going up in frequency. Good for Intel, not so much for AMD which benefits most from 1:1 ratio thingy.

Hynix CJR is similar, but can take the voltage to go up as high in frequency. Won't do 1.6V, just cooks it, while DJR can.

Only ones that can do CL14 is Samsung B-Die.

Edit: From one of my reviews. 16-19-19-39 @ 1.6V for DD4-3600. Or 22-32-32-52 @ 1.6 for DDR4-5333

Hynix really doesn't scale down at all. As we see with DDR5, Hynix knows how to go up

I'm also not positive it's DJR. Could be CJR at 3600. Easily way to tell is if it shits itself at 1.6v . That or take the heatspreader off.

I was trying to do some digging and came across some info on reddit that stated they might be CMR which ar very similar to CJR when it comes to how they perform and oc, voltage scaling etc
Also assuming you meant 4333 in your reply and not 5333

Can you look at my zen timings ss and possibly advise anything that might yield the best returns, I copied most of the timings from another thread of Hynix user who had problems getting stable at 3800 but settled on the ones I am using (not all of them) trfc I have left at auto as the computer shat itself when I changed that earlier and I had to manually reset the bios, usually when I set them to 3800 and it fails it will cycle a few times and eventually restart on it's own, first time resetting the bios on this board and had to look up where the damn battery was, turns out it's right under the 1st pciex16 slot so ended up removing the GPU, later found out it has a jumper and that did the trick....

 

[Onasi]

@ir_cow
Yeah, seems like my knowledge is also far from complete here and TG is now just throwing whatever on whatever at this point, seeing as how these are fairly “fresh” modules if we believe what Thaiphoon reports for the manufacturing date. Might be safe to say that OP has already extracted about as much as can be reasonably expected of these and he might as well leave well enough alone if he plans on running them. If not and this is just for fun and experiment - hey, might as well go nuts on the voltage and see how they behave.

@Marcus L
Nah, not necessarily. You can get DDR4 to 5333. It’s not very useful, but can be done, on Intel at least.

 

[ir_cow]

Also assuming you meant 4333 in your reply and not 5333

Nope, 5333 MT/s. It was a thing briefly for sale retail too.

Here are two reviews I did with Hynix DJR. In the overclocking section. Might help you out in figuring out timings.

I haven't done any DDR4 stuff in nearly 2 years.

XPG SPECTRIX D50 ROG CERTIFIED RGB DDR4-3600 2x 8 GB Review

XPG has partnered with ASUS to bring the well-reviewed SPECTRIX line back into the spotlight with a twist. This time, the memory is certified for Intel ASUS ROG-based motherboards. Rated for 3600 MT/s, we will be looking at exactly what this partnership means and how it could benefit you, the...

www.techpowerup.com

Neo Forza Faye DDR4-5000 2x 8 GB Review

The Neo Forza DDR4-5000 Faye memory kit is DDR4 pushing into unknown territories. Are you up to the challenge? It has been said patience is a virtue. Let's see if that holds true. Follow along as we see what it takes to break personal records and beyond!

www.techpowerup.com

 

[Marcus L]

I think I am going to leave them for tonight, the computer just reset/crashed whilst I was in the bios, that's a first for me in 20 years of building PC's, reset/bsod whilst booting into Windows yes, not whilst in the bios, have just set them to their shitty XMP settings for tonight, only reason I rebooted was to change the SOC voltage as on auto it was at 1.18, I usually set to 1.15 and leave it be, seems maybe the board knows these crappy sticks need more? the RAM voltage was also reading 1.42 even though set in bios, kind of bummed I got these, based on my last set of Team Group RAM that was pretty solid for years and is now in my son's PC

I'm surprised any of these DJR IMC's clock that high, though you really don't get much more out of their rated speed from what I can tell where as I was able to overlock my b-die 16GB set 800-1ghz over it's stock 3000mhz whereas it's probably only 200-300mhz more with DJR than what they are rated, ofc I could be wrong but that's the impression I am getting from several posts and other info I can find about them

 

[ir_cow]

But happy you didn't get Samsung C-Die. That's real hot garbage.

 

[Marcus L]

But happy you didn't get Samsung C-Die. That's real hot garbage.

Surely can't be much worse?

 

[tabascosauz]

Any suggestions, see zen timings SS

@tabascosauz might have some input but I wouldn't expect much DJR is shite.

Tightening timings is definitely your best bet but I wouldn't expect much Trc/Trfc are your best bet. I wouldn't expect much below 16 if even that on the primaries.

I think I am going to leave them for tonight, the computer just reset/crashed whilst I was in the bios, that's a first for me in 20 years of building PC's, reset/bsod whilst booting into Windows yes, not whilst in the bios, have just set them to their shitty XMP settings for tonight, only reason I rebooted was to change the SOC voltage as on auto it was at 1.18, I usually set to 1.15 and leave it be, seems maybe the board knows these crappy sticks need more? the RAM voltage was also reading 1.42 even though set in bios, kind of bummed I got these, based on my last set of Team Group RAM that was pretty solid for years and is now in my son's PC

1.18V is nuts SOC for a lowly 1800MHz. Nuts even for auto SOC. I highly doubt you need anywhere near that, there are bad CPU samples but that would be next level bad. Every single Zen 3 CPU of mine does 1800MHz at sub-1.0V.

Hynix can do something like ~250ns tRFC. Even with shittier Hynix (MJR comes to mind), 550ns is loose.

Clearly you have some 8Gb Hynix fare, being dual rank at 16GB. So CJR, DJR, JJR etc., all relatively known quantities. I'm leaning towards CJR based on the way it can still do CL16. As for the other timings there's not much room to improve, it's Hynix. If tRFC can come down to 250-270ns, it's at least CJR or maybe DJR (DJR would be a weird choice for this bin).

Don't forget to TM5 your RAM.

Surely can't be much worse?

8Gb C-die is the one that scales negatively with volts. So yeah, trash on par with maybe 4Gb D-die.

Although.......it's not like any Hynix aside from DJR really likes or reacts to volts either, so maybe not.

 

[Marcus L]

1.18V is nuts SOC for a lowly 1800MHz. Nuts even for auto SOC. I highly doubt you need anywhere near that, there are bad CPU samples but that would be next level bad. Every single Zen 3 CPU of mine does 1800MHz at sub-1.0V.

Hynix can do something like ~250ns tRFC. Even with shittier Hynix (MJR comes to mind), 550ns is loose.

Clearly you have some 8Gb Hynix fare, being dual rank at 16GB. So CJR, DJR, JJR etc., all relatively known quantities. I'm leaning towards CJR based on the way it can still do CL16. As for the other timings there's not much room to improve, it's Hynix. If tRFC can come down to 250-270ns, it's at least CJR or maybe DJR (DJR would be a weird choice for this bin).

Don't forget to TM5 your RAM.



8Gb C-die is the one that scales negatively with volts. So yeah, trash on par with maybe 4Gb D-die.

Although.......it's not like any Hynix aside from DJR really likes or reacts to volts either, so maybe not.

So what do I set TRFC at to get it down? hwinfo is reporting 990t, I changed it earlier to 480 and that's when I had to do a manual bios reset

Surely it's the motherboard setting the auto voltages too high? have changed them now, there seems to be a .2v overshoot on both the RAM voltage and SOC for some reason, running 1.03 SOC and 1.34 for the RAM now.

 

[tabascosauz]

So what do I set TRFC at to get it down? hwinfo is reporting 990t, I changed it earlier to 480 and that's when I had to do a manual bios reset

Surely it's the motherboard setting the auto voltages too high? have changed them now, there seems to be a .2v overshoot on both the RAM voltage and SOC for some reason, running 1.03 SOC and 1.34 for the RAM now.

I ran 471 at 3600 on my CJR kit. Would have been 260ns or so. Seemed to be a decent result for CJR. I think it could go lower but it started running into errors. At below 450 @ 3600 it would not boot anymore.

 

[Marcus L]

I ran 471 at 3600 on my CJR kit. Would have been 260ns or so. Seemed to be a decent result for CJR. I think it could go lower but it started running into errors. At below 450 @ 3600 it would not boot anymore.

View attachment 338691

Wouldn't boot at 480 trfc and required a hard bios reset, would point to it being JJR dies based on that table? which is very informative btw! or maybe that less unheard CMR? I will try over 504 which Hynix JJR is rated at 3600 MT/s and see how I get on, really don't want to have to open it up again and short the bios jumper pins

 

[tabascosauz]

Wouldn't boot at 480 trfc and required a hard bios reset, would point to it being JJR dies based on that table? which is very informative btw! or maybe that less unheard CMR? I will try over 504 which Hynix JJR is rated at 3600 MT/s and see how I get on, really don't want to have to open it up again and short the bios jumper pins

There's some other 8Gb dies from Hynix as well. It's been a while so I don't remember them. There might be a 8Gb AFR, I can't remember if it's decent or shit.

I've never seen any verified CMR, seems like it would go against Hynix's DDR4 naming scheme. There's reference to it being a 16Gb part, which just sounds like a misidentified MJR. And as yours is 8Gb hardware, it doesn't seem likely.

 

[Marcus L]

There's some other 8Gb dies from Hynix as well. It's been a while so I don't remember them. There might be a 8Gb AFR, I can't remember if it's decent or shit.

I've never seen any verified CMR, seems like it would go against Hynix's DDR4 naming scheme. There's reference to it being a 16Gb part, which just sounds like a misidentified MJR. And as yours is 8Gb hardware, it doesn't seem likely.

What part of thaiphoon burner are you referring to when you mention 8Gb/16Gb part?

 

[tabascosauz]

What part of thaiphoon burner are you referring to when you mention 8Gb/16Gb part?

not in thaiphoon, 8Gb/16Gb is the density of each chip

Zentimings identifies the capacity of each DIMM and whether single or dual rank, from which you can easily extrapolate whether 4Gb/8Gb/16Gb hardware. A 16GB DIMM that is dual rank can only be using 8Gb parts (or 16Gb cut down to 8Gb)

Density is important because each product is unique. 8Gb CJR ≠16Gb CJR, although they perform broadly similarly

 

[Marcus L]

TRFC@ 520 now boasts 64ns latency compared to 70ns when I left it at auto, bare in mind it won't run 480, hard lockup/bios reset was required from changing that one timing alone, considering I can't run 3800 even from XMP 3600 are there any other major timings/sub-timings that might bring that latency down a little bit more or improve my bandwidth which is kinda shit also lol, this RAM kit is hard work

Also thanks for your input

 

[tabascosauz]

TRFC@ 520 now boasts 64ns latency compared to 70ns when I left it at auto, bare in mind it won't run 480, hard lockup/bios reset was required from changing that one timing alone, considering I can't run 3800 even from XMP 3600 are there any other major timings/sub-timings that might bring that latency down a little bit more or improve my bandwidth which is kinda shit also lol, this RAM kit is hard work

Also thanks for your input

Not much else I can think of. Late Hynix DDR4 kinda all behaves the same, not much wiggle room on timings and basically nothing scales off voltage except kinda tCL (unlike 8Gb B-die that scales all the primaries + tRFC). Basically 8Gb CJR is the benchmark, 8Gb DJR is CJR but does crazy speeds and takes up to 1.6V reliably, 8Gb JJR is crappy CJR, and the 16Gb stuff like MJR or CJR still is just CJR but worse timings

This was probably the last config I had for my CJR before I sold it and the CPU, things are not as tight as they could possibly be but i wanted stability

The thing about tRFC is that it is important, but really only in big jumps. You might see an actual improvement comign down from say XMP 600ns to 150ns, but minmaxing down to 120-130ns (for B-die) is just e-peen at that point

Seems like you've got things pretty much handled already