Can't manage to set my memory frequency to 3600mhz

[INSTG8R]

I hope you have XMP/DOCP disabled, otherwise it will conflict with manual settings.

I haven’t had that issue I have done the opposite Set XMP then manually override with my own timings

 

[Zach_01]

I haven’t had that issue I have done the opposite Set XMP then manually override with my own timings

I was getting very bad memory latency when I had XMP enabled and doing manual speed/timings

 

[INSTG8R]

I was getting very bad memory latency when I had XMP enabled and doing manual speed/timings

Had to find my 3600 CL16 manual timings bench but granted I’m only ever adjusting the primary timings
Edit: Actually that wasn’t a bad run normally it’s 70-71ns
y

 

[oxrufiioxo]

With zen 2 and a decent b die kit you should be around 64ns or lower with zen 3 you should be closer to 50ns.

 

[Karmal]

these are mine if they were stable but i can't get stability with the ryzen 3950x

 

[INSTG8R]

With zen 2 and a decent b die kit you should be around 64ns or lower with zen 3 you should be closer to 50ns.

I’d think so too but that’s tweaking sub-timings to eek out every last drop.

these are mine if they were stable but i can't get stability with the ryzen 3950x

That’s 3600/1800 anything past that is OC territory like mine. Your‘e at the 1:1 goal

 

[thesmokingman]

Ok, so your dumb question actually revealed my dumbness. They were not on the recommended slots. I just switched slots, enabled XMP and changed the timings to CL18, and it booted just fine. Right now I have this config:
View attachment 179895
Since we're here, what could I change to tune it even more?

You could some but those dimms are cas 17 which is a waste cuz ram doesn't like to run on ODD CAS numbers.

How did you solve? I can't run 4 banks of 32gb ram for a total of 128gb at 3600mhz on asus crossfire hero viii with ryzen 3950 x cpu ... what settings in bios are used? in docp I have sporadic random reboots I have the impression that it is very hard to make 4 banks of ram work like my hyper xa 3600mhz even if certified by asus in the vendor listi specifically these https://www.kingston.com/dataSheets/HX436C18FB3K4_128 .pdf

Solve it by lowering your expectations to something remotely realistic? 4x32gb is not possible at 3600mhz. And be realistic man, the spec is 2667mhz for that density.

 

[leonvrd]

That’s very nice! But there's more for improvement...

Suggestion:

tRAS: 32
tRC: 48
tRRDS: 6
tRRDL: 8
tFAW: 24
tRFC: 350

Also, what you see as “GDM: Enabled” is Gear Down Mode. This when enabled it makes the uneven numbers to the next (higher) even. So whatever timings are at 1, 3, 5, 7...etc makes them 2, 4, 6, 8...etc. You will probably need more voltage for disabling it. Note that B-dies can take a lot of voltage if cooling is sufficient. 1.45~1.5V is really nothing for them. I would go straight to 1.45V and make timing improvements.

I hope you have XMP/DOCP disabled, otherwise it will conflict with manual settings.

DOCP is enabled right now, but I'll disable it then, and will try to disable GDM too.
As for the subtimings, is it more risky to mess with them?

 

[Karmal]

I’d think so too but that’s tweaking sub-timings to eek out every last drop.


That’s 3600/1800 anything past that is OC territory like mine. Your‘e at the 1:1 goal

So you say it won't work .. do I have to turn it down to 3200mhz?

You could some but those dimms are cas 17 which is a waste cuz ram doesn't like to run on ODD CAS numbers.



Solve it by lowering your expectations to something remotely realistic? 4x32gb is not possible at 3600mhz. And be realistic man, the spec is 2667mhz for that density.

So you say it won't work .. do I have to turn it down to 3200mhz? or use only two modules at 3600mhz? before i had 4 modules of 16gb for a total of 64gb at 3000mgz and everything was stable .. but now i need 128 for video editing ... there is no hope

 

[thesmokingman]

So you say it won't work .. do I have to turn it down to 3200mhz?


So you say it won't work .. do I have to turn it down to 3200mhz? or use only two modules at 3600mhz? before i had 4 modules of 16gb for a total of 64gb at 3000mgz and everything was stable .. but now i need 128 for video editing ... there is no hope

Lower the speed/timings till you find the point it works. If you get 3200mhz, jump for joy cuz that's still very good for that density.

 

[Karmal]

Lower the speed/timings till you find the point it works. If you get 3200mhz, jump for joy cuz that's still very good for that density.

So do you recommend leaving at 3200 and docp without touching the tensions the rest by default? I don't understand why they write this in the vendor list when it can't work

 

[thesmokingman]

So do you recommend leaving at 3200 and docp without touching the tensions the rest by default? I don't understand why they write this in the vendor list when it can't work

You really should have done some basic research on high density ram setups. The QVL list doesn't mean jack really other than it was simply tested for booting. When you raise the densities up on ram, then multiply that to the max, you the user needs to be aware of the incredibly increased load on the IMC. In other words the QVL list does not take into account how you will be using said ram, at all. Too many assumptions...

And the actual spec for 4x16gb/32gb is 2667mhz. That is a long ways away from your expectations.

 

[Zach_01]

DOCP is enabled right now, but I'll disable it then, and will try to disable GDM too.
As for the subtimings, is it more risky to mess with them?

What do you mean by risky?
Make the system unstable? Yes they could
Do any harm on memory or anything else? Absolutely no

The only thing that can do damage is excessive voltage and like some of us said B-die chips can take a lot, 1.5+V for daily usage, with proper cooling. And since your sticks have temp sensor you are ok! Keep it under 45C. You can see the temp (of dimms) on HWiNFO64 sensors mode.

 

[leonvrd]

What do you mean by risky?
Make the system unstable? Yes they could
Do any harm on memory or anything else? Absolutely no

The only thing that can do damage is excessive voltage and like some of us said B-die chips can take a lot, 1.5+V for daily usage, with proper cooling. And since your sticks have temp sensor you are ok! Keep it under 45C. You can see the temp (of dimms) on HWiNFO64 sensors mode.

Oh, I see. I don't know a thing about these numbers so I was a little bit scared.
I've followed your suggestions, now that's how it is configured:

 

[Zach_01]

I was going to ask you to run AIDA64 again but then I saw Cmd2T: 2T. That’s a hit in memory performance.
This can happen in some boards when you change GDM to disabled. You must enable GDM again, put Cmd on 1T manually and then disable GDM. And then run AIDA64 memory benchmark.

 

[leonvrd]

I was going to ask you to run AIDA64 again but then I saw Cmd2T: 2T. That’s a hit in memory performance.
This can happen in some boards when you change GDM to disabled. You must enable GDM again, put Cmd on 1T manually and then disable GDM. And then run AIDA64 memory benchmark.

I couldn't boot after doing that. When it was loading Windows I got a blue screen. I went back to the BIOS and enabled the GDM again. Is it bad if I leave it enabled?

 

[INSTG8R]

I couldn't boot after doing that. When it was loading Windows I got a blue screen. I went back to the BIOS and enabled the GDM again. Is it bad if I leave it enabled?

Nope the difference is irrelevant unless your genuinely making a maximum effort to get absolutely bleeding edge timings. You’ve conquered the peak, it’s stable just enjoy the accomplishment and get to using it.Don’t poke the bear messing with sub timings. Just to end up making it unstable.

 

[Zach_01]

I couldn't boot after doing that. When it was loading Windows I got a blue screen. I went back to the BIOS and enabled the GDM again. Is it bad if I leave it enabled?

As I said, has an impact on uneven timings. Make them even (1 step higher). Probably need more DRAM voltage to achieve current timings with GDM disabled.
So, whats the AIDA64 memory benchmark score now?

 

[Bones]

I'll say when I was messing with my 3600x and the sticks I've got, I didn't need any utils to tweak and run it.
Did it all old school with OC'ed CPU and RAM.

Of course the NB had to be dropped by half of the RAM speed achieved.
This was just a run for RAM speed validation and will have to try it properly later with other tests to see how it really does and how high it can go with actual stability.
AMD Ryzen 5 3600X @ 4224.02 MHz - CPU-Z VALIDATOR


I've noticed with AM4, as many have been saying the BIOS you have in the board is a big deal since it just seems either a certain BIOS version/revision will let it clock the sticks up or make it fall on it's proverbial face.
I've also noted as mentioned certain makes just seem to have better luck than others getting a handle on what makes it work well. For example the MSI x570 MEG ACE I was using likes to clock these sticks with this chip, my ASRock x 470 Tachi Ultimate however does not with the same chip and sticks used in it.

I've also seen a ton of problems between Corsair RAM and AM4 more times than I can begin to imagine, yet people still keep buying and trying it with AM4.
Can anyone explain?
I can't.

I'll have to take an honest guess here - Seems to me at least 75-80% of all AM4 RAM related issues I've seen here involved Corsair RAM in some way.

I can sum it up as It's been said (Correctly) there is no guarantee what you'll get when you tweak and try it, that's just reality and no one here or anywhere else can change that.
Good luck guys - I'm hoping one day to give it another shot and do some testing with it soon.

 

[leonvrd]

As I said, has an impact on uneven timings. Make them even (1 step higher). Probably need more DRAM voltage to achieve current timings with GDM disabled.
So, whats the AIDA64 memory benchmark score now?

Oh, I had understood that it would adjust itself when I disabled it.
I ran the benchmark, and the read and write speeds were a bit higher, but the latency was worse. After that I tried to play something and it was very unstable, the game wouldn't run properly and the sound was very "dirty". Then I rolled back to the 3800mhz config and everything seems to work properly, but now I'm a bit skeptical about messing with those timings again. I mean, I just wanted to use my RAM in the settings that they're supposed to work, and I could make it even further than that, so I guess it's great the way it is right now, as I use my PC mainly for gaming and I don't want to push too far overclocking the hell out of it.

Nope the difference is irrelevant unless your genuinely making a maximum effort to get absolutely bleeding edge timings. You’ve conquered the peak, it’s stable just enjoy the accomplishment and get to using it.Don’t poke the bear messing with sub timings. Just to end up making it unstable.

Yeah, I'll do that. And thanks very much for your stupid question and all your help.
And thanks too to everyone else who helped me.

 

[Blue4130]

I've been

Oh, I had understood that it would adjust itself when I disabled it.
I ran the benchmark, and the read and write speeds were a bit higher, but the latency was worse. After that I tried to play something and it was very unstable, the game wouldn't run properly and the sound was very "dirty". Then I rolled back to the 3800mhz config and everything seems to work properly, but now I'm a bit skeptical about messing with those timings again. I mean, I just wanted to use my RAM in the settings that they're supposed to work, and I could make it even further than that, so I guess it's great the way it is right now, as I use my PC mainly for gaming and I don't want to push too far overclocking the hell out of it.


Yeah, I'll do that. And thanks very much for your stupid question and all your help.
And thanks too to everyone else who helped me.

I've been following this ordeal and now that you have reached the peak, are you noticing differences in game? I just watched a hardware Canucks video about ram speed and timings on the new zen chips. It was less than impressive to say the least in regards to hyper speed and low timing ram.

 

[jmpo96]

Hi there,
I just bought a Motherboard ATX MSI MEG B550 Unify-X and a Processador AMD Ryzen 5 5600X 6-Core 3.7.
There are only 2 ram slots with 64GB total max.
It's hard to find 2 x32gb 3200MHz slots that are compability checked on the website https://www.msi.com/Motherboard/support/MEG-B550-UNIFY-X , and even harder when i look for 3600MHz.
After all the posts bellow i still can't understand if there is 3200MHz frequency limitation from amd as shown in website or if i can run 3600MHz on this processor, or even 4000MHz (as some guys here said it's the sweet spot'').
Thank you all.

PS:
-I still need a good gpu, what do you recomend for this kind of build to play and work on drawing (civil engineering) ? Even with the current marketplace situation.
-I'm also looking for i desktop case that looks like a bag or a box. Something kinda square, that i can take with me to work and home easily, with an hand grip and good resistence. Any sugestions?