Ryzen 3900X can't clock 1800MHz Infinity Fabric with 3600 CL14. Disappointed with Ryzen.

[Taraquin]

You say it works at 1767, why not run ram at 3533 with the tightest timings you can try again at 1800 IF when the next bios is out?

 

[KhakiKukhi]

As I said earlier....

2x8gb isnt and likely for a reason.

Stick to the qvl....

1x8Gb is on the QVL and still does not work.

You say it works at 1767, why not run ram at 3533 with the tightest timings you can try again at 1800 IF when the next bios is out?

Sounds good. But I really want to make sure my CPU is not "faulty". I wanna try get a 1:1 exchange from my local retailer before the 1 month period runs out.

 

[jesdals]

I was watching this video

and if theres a binning difference between the two cores, it would perhaps explain why people dont se the same results. I would like to some one try my pstaes oc on a 3900x perhaps starting low with 4400mhz and1.5 vcore - just to see if the all core setting is possible on the 3900x

Btw your motherboard comes with a ton of ad on censors. Do you use them? I dont, but just wondering if some of the problems people experience with the Master and Extreme is because of some of these extra options

 

[TheLostSwede]

This might annoy you, but I can run my "cheapo" 3600 memory at 3800 at 1:1.
Not using XMP though and not super tight timings, but better timings than the manufacturers spec.
Admittedly on a 3800X and the model down from yours in terms of board, but hey...

That said, it took me a long time to get here, especially with boosts working as well. Gigabyte seems to be working things out, but I'm sure there are a lot more issues for them to sort out. AGESA 1.0.0.4 should be out some time next week from Gigabyte, in a new beta UEFI.

Also, the Ryzen DRAM calculator isn't perfect, it's a tool to help you dial in ballpark figures, but I managed to run my RAM at tighter timings than it suggested.

 

[KhakiKukhi]

I was watching this video

and if theres a binning difference between the two cores, it would perhaps explain why people dont se the same results. I would like to some one try my pstaes oc on a 3900x perhaps starting low with 4400mhz and1.5 vcore - just to see if the all core setting is possible on the 3900x

Btw your motherboard comes with a ton of ad on censors. Do you use them? I dont, but just wondering if some of the problems people experience with the Master and Extreme is because of some of these extra options

Do you mean add-on sensors? I've not tired them yet but I'd like to try them once I'm done tweaking my CPU. Now that'm close to giving up on the FCLK, I might get an AIO and OC the cores next.

This might annoy you, but I can run my "cheapo" 3600 memory at 3800 at 1:1.
Not using XMP though and not super tight timings, but better timings than the manufacturers spec.
Admittedly on a 3800X and the model down from yours in terms of board, but hey...

That said, it took me a long time to get here, especially with boosts working as well. Gigabyte seems to be working things out, but I'm sure there are a lot more issues for them to sort out. AGESA 1.0.0.4 should be out some time next week from Gigabyte, in a new beta UEFI.

Wow! I'm envious.
I might just exchange my 3900X but 3900Xs are in really short supply here and I'm not sure when I can get a replacement.

 

[TheLostSwede]

Wow! I'm envious.
I might just exchange my 3900X but 3900Xs are in really short supply here and I'm not sure when I can get a replacement.

They're in short supply everywhere. No stock at all here. As such, it might be a bad idea to try and get it swapped, for something that will most likely be resolved with a UEFI update.
The past two beta UEFI's from Gigabyte prevented me from running anything higher than 3600MHz for the RAM, so it might be that your board has a similar issue. Setting the memory to 3733 or 3800 would result in the system not booting.

 

[jesdals]

The way I manage the memory is by entering the Advanced Memory Settings (do note that XMP not should be enabled)

And in here I just ad the CL14,15,16, 16, 32, 50 settings that I found using the Ryzen Dram Calculator

Now go back to settings and those the AMD overclocking page

You have to accept terms

Go to timing Configuration

And here just ad the speed

You could proberly type in your settings for timings here instead of the tweaker menu. But I doing it this way

And then just set the Ifinity manually to 1800MHz nothing more

 

[TheLostSwede]

@jesdals apparently the Gigabyte settings override the ones in the two "AMD" menus, just FYI.

 

[EarthDog]

I wanna try get a 1:1 exchange from my local retailer before the 1 month period runs out.

I wish we had retailers around to return bad overclocking cpus!

 

[KhakiKukhi]

The way I manage the memory is by entering the Advanced Memory Settings (do note that XMP not should be enabled)
View attachment 130570
And in here I just ad the CL14,15,16, 16, 32, 50 settings that I found using the Ryzen Dram Calculator
View attachment 130572
Now go back to settings and those the AMD overclocking page
View attachment 130573
You have to accept terms
View attachment 130574
Go to timing Configuration
View attachment 130578
And here just ad the speedView attachment 130577
You could proberly type in your settings for timings here instead of the tweaker menu. But I doing it this way
View attachment 130579
And then just set the Ifinity manually to 1800MHz nothing more

That's what I did too.
I'm glad that at least you managed to get yours working.

 

[FinneousPJ]

AMD's official Specification states memory and hence also infinity fabric speeds of 3200/1600 respectivly.

https://www.amd.com/en/products/cpu/amd-ryzen-9-3900x

Anything above that is an overclock and a bonus.

That's what I thought. What an odd reason to get disappointed over, not being able to run X amount beyond spec.

1x8Gb is on the QVL and still does not work.


Sounds good. But I really want to make sure my CPU is not "faulty". I wanna try get a 1:1 exchange from my local retailer before the 1 month period runs out.

It's not faulty. AMD spec is 1600 MHz.

 

[eidairaman1]

Have you checked to see if the Gigabyte X570 motherboard is increasing the voltage to the SoC/Northbridge with the increase to DDR4-3600/IF @ 1800 MHz that has the Integrated Memory Controller? It might be affecting stability if for some odd reason the motherboard doesn't bump the voltage. It should be doing it on its own with the setting at Auto.

Auto varies it too much.

The Ryzen DRAM Calculator told me 1.45V. I'll lower it and test it.

UPDATE:
3600 CL14 @ 1.36V, FCLK 1800, can't even boot Windows.

But at 1.45V, it's stable.

Could it also be a hardware issue? It might be both a CPU and motherboard problem.

1.45, have you tried 1.37-1.44V?

Since 1600 is stable, everything over that is not guaranteed, boxochocolates

 

[KhakiKukhi]

I wish we had retailers around to return bad overclocking cpus!

I know some guys

Auto varies it too much.



1.45, have you tried 1.37-1.44V?

I've tried 1.36V. That does not boot.

 

[eidairaman1]

I know some guys

I've tried 1.36V. That does not boot.

I didnt say 1.36 im saying volts of 1.37-1.44

 

[spectatorx]

I think info from this video may help you:

 

[biffzinker]

On the plus side, you're really not missing anythingbetween 3200cl14 and 3600cl16 -- techspot found 0 difference between the two settings.

What about TPU's 3900X memory performance scaling? You are posting on TPU's forum so I would hope your reading the content posted on the main site.

AMD Zen 2 Memory Performance Scaling with Ryzen 9 3900X

We take a close look at memory scaling on AMD's new Zen 2 Ryzen 3900X, testing both application and gaming performance at seven different memory speed and timing combinations ranging from 2400 MHz all the way up to 4000 MHz.

www.techpowerup.com

 

[phanbuey]

What about TPU's 3900X memory performance scaling? You are posting on TPU's forum so I would hope your reading the content posted on the main site.

AMD Zen 2 Memory Performance Scaling with Ryzen 9 3900X

We take a close look at memory scaling on AMD's new Zen 2 Ryzen 3900X, testing both application and gaming performance at seven different memory speed and timing combinations ranging from 2400 MHz all the way up to 4000 MHz.

www.techpowerup.com

LOL - google failed me.

 

[biffzinker]

LOL - google failed me.

Have you tried using DuckDuckGo for web searches?

 

[Voltaj .45 ACP]

fclk speed about chip quality.my 3700x can make 1866 mhz.how can 3900x 1767 because 3900x's have better chips or are they?

 

[biffzinker]

because 3900x's have better chips or are they?

Technically AMD should be using a higher quality binned dies for the two chiplets, and you would expect the same for the I/O die. Who knows for sure?

 

[gerardfraser]

I somehow doubt that a 3900X with the gear that @KhakiKukhi has can not run up to max 1900 Infinity Fabric.

Some things to try.First get proper setting for the ram and then apply enough voltage to the Ram,Soc etc.

Suggestion for Ram Download DRAM Calculator for Ryzen with Thaiphoon burner

In thaiphoon burner export your XMP profile with complete HTML Report and save delays in nanoseconds to desktop or somewhere you would remember.
Then import the XMP complete HTML Report to DRAM Calculator for Ryzen

Then in the DRAM Calculator for Ryzen pick the settings you want and try them,they are meant as a guide. Print out setting from main and advanced or write them down.

In BIOS set everything to optimized defaults and restart back in to BIOS.

In BIOS input the settings from the DRAM Calculator for Ryzen-depending on what settings you picked voltages may be different.
Disable-PBO for now,can re-enable anytime
Set DRAM voltage to 1.5v for now ,can lower later
cLDO VDDG - 0.900v Most likely your auto settings set this to high,use recommended setting from DRAM Calculator for Ryzen
cLDO VDDP - 0.950v Most likely your auto settings set this to high,use recommended setting from DRAM Calculator for Ryzen
SOC - 1.12v -Set to max from DRAM Calculator for Ryzen for now.I use higher than max on my system for stability.
DDR4-Set to 3600Mhz or whatever you picked in DRAM Calculator for Ryzen
The memory clock (mclk), the memory controller clock (uclk), and the infinity fabric clock (fclk) all need to be synced for best results.
So in BIOS set fclk-1800Mhz or half of whatever you picked in DRAM Calculator for Ryzen
So in BIOS set mclk=uclk
When set the mclk:uclk:fclk should be set to ratio1:1:1 for best results.

Give these a try without toughing anything else in your BIOs and see how it goes.

 

[Deeveo]

I couldn't find the settings you talked about.

Might be under advanced memory settings, not familiar with Gigabyte bios though.

 

[erocker]

Sorry if I missed it, but are you able to run the IF clocks at the speed you want with your RAM @ 3600Mhz CL16? 3600 @ CL14 is a tough nut to crack for both the RAM and the SoC.

 

[biffzinker]

Sorry if I missed it, but are you able to run the IF clocks at the speed you want with your RAM @ 3600Mhz CL16? 3600 @ CL14 is a tough nut to crack for both the RAM and the SoC.

I tried asking the same question earlier in the thread.

Ryzen 3900X can't clock 1800MHz Infinity Fabric with 3600 CL14. Disappointed with Ryzen.

My Ryzen 3900X that I just recently purchased can't clock to 1600MHz on Infinity Fabric. When I clock to 1600 IF with 3600 memory, testing Cinebench R20 causes my PC to black-screen and reboot. 1400 IF with memory at 3600 is stable. Memory is Ballistix Elite 3600 CL14. CPU is running with stock...

www.techpowerup.com

 

[Adam Krazispeed]

This is HWINFO with cinebench running in the background.View attachment 130556

dude according to hwinfo?? your running an R9 3900X QS .. a qualification / Engineering Sample Silicon. LOOK at TOP LEFT then look to the right of the CPUs (OPN). id contact AMD or store u purchased the cpu from and tell em to give you a new CPU.. this happend to me with the AMD fx series cpus years ago and AMD sent me a new cpu that was a Production Sample and they even upgraded me to the next model in line, ES Fx 8120 sent to AMD - AMD sent back to me an FX 8150.. small i know but i still got a free upgrade for the fuck up??