AMD Ryzen memory support

[RemusM]

These are the memory configs & speeds guaranteed by AMD for their Ryzen 1XXX CPUs:
1866 MHz for 4 DIMMs in dual channel and dual rank.
2133 MHz for 4 DIMMs in dual channel and single rank.
2400 MHz for 2 DIMMs in dual channel and dual rank.
2666 MHz for 2 DIMMs in dual channel and single rank.
Anything above that is gambling.


Update 2020:

The max memory speed (guaranteed) for Ryzen 1XXX is 2666MHz.
The max memory speed (guaranteed) for Ryzen 2XXX is 2933MHz.
The max memory speed (guaranteed) for Ryzen 3XXX is 3200MHz.
But those speeds are guaranteed only in case of 2 single-rank modules.
In case of dual-rank modules or 4 memory modules everything is degraded with 266MHz (at least).
Of course, overclocking and overvolting combined with a bit of luck (high quality CPU) can lead to higher speeds.
But again, nothing is guaranteed.


Update 2023:

Ryzen 5XXX

Ryzen 7XXX

Ryzen 9XXX

 

[rb_leroy]

Thank you!

 

[pekkala.jani]

Mortar Max b450
Ryzen 5 2600x
Corsair (cmk16gx4m2b3200c16)(cpuz claims they are samsung) 2x8gb

DDR4 clocks stuck in 2133mhz

any ideas?

 

[darkhawk]

Mortar Max b450
Ryzen 5 2600x
Corsair (cmk16gx4m2b3200c16)(cpuz claims they are samsung) 2x8gb

DDR4 clocks stuck in 2133mhz

any ideas?

What BIOS version?
Honestly.....you probably just need to set the SoC voltage a bit higher than whatever BIOS version you're using is setting it to. Try 1.1V. Maybe try 1.2V at the most (don't go higher, 1.2V is still safe, but I wouldn't venture any higher).
That might help your issues.

 

[slicecall]

After BIOS update on MSI B450-A PRO all timings for memory is in hex. Hard to calculate. Can it be changed back to 10 numeric system?
Also issues with some fields - it is impossible to fill them.

 

[cimento_]

With the BIOS Version 7A34vHKP(Beta version) i could not get A-XMP (3200mhz) working on my B350 Tomahawk Arctic and Ryzen 3600. 

I have two 8Gb sticks running on dual channel from G.Skill TridentZ RGB (F4-3200C16D-16GTZR)


Flashed back to 7A34vHKO and it works again.
Something seems to be "broken" with the new bios version.

 

[amitshendge1990]

I also need some memory boost support

 

[jok3r87]

Hi,
i have
msi x470 gaming m7 ac
2700x
gskill f4-3200c14

with last bios (1.c 1.d) the ram not working at 3200Mhz CL14 with whatever settings, with bios .14 .15 ecc. the ram work perfectly.
With last bios (1.d) ryzen timing check does not detect the change of cad, bug bios ?
How to reflash old bios?

 

[pb.williams]

I have 
x570 msi plus gaming Radeon graphics 2700xt and 2700x 


4 x 8GB Corsair Vengeance RGB Pro (3200)
2 x 8gb  I can achieve 3200 Mhz  (Profile 2) 16-18-18-36 . I can actually get more if I over clock

When I add the 4 x 8gb it reverts to 1066 if I select profile 1, it increases to 2465Mhz  however if I select Profile 2 (so called 3200) it goes back to 1066 
Tried all sorts and I caanot get my Corsair (3200) to do the right speed

 

[prabhakaran1989]

If any one is able to run Gskill ram (2x8 GB) with a stable configuration, please post your settings.

This info is from the post: https://forum-en.msi.com/index.php?threads/328565
---
My PC boot/POST get stuck with EZ CPU LED randomly. 1 in every 2 boot has this issue with latest MSI BIOS.

Here is my PC config:

• MSI B450M Gaming Plus
• AMD Ryzen 3600
• G.Skill  F4-3200C16D-16GVKB = 2 x 8GB
• MSI Vega 56 Air Cooled
• 650W Antec HCG Gold

Overclocking Details:
1.  I had set my CPU ratio to 36 instead of Auto and Clock speed to 3600. Because I do not need any boost clock, just the base clock speed of Ryzen 3600. This option kept my CPU temp was less than 52*c in normal/gaming operation.
2. Yes, I had turned on XMP profile (default DDR4-3200 DIMM CL16-18-18-38 Dual Kit) to 3200 MHZ - G.Skill  F4-3200C16D-16GVKB - because it is supported by MSI B450 Motherboard (see below)
- (see  the attached picture for RAM compatibility)

G.Skill

F4-3200C16D-16GVKB

2133MHz

3200MHz

3200 MHz

SK hynix MFR

1.35v

DUAL

8GB

? | ?

I took (an admin's) advise, tried to turn off all over clocking:

1. I set my CPU ratio and clock speed to Auto. Now my CPU temp is on average 58*c on normal and 60 - 68*c on Gaming which is ok.
2. I turned off XMP profile for RAM, so now the default recognized speed is very low - 2133MHz

Now, it looks like my PC boots / POST ok - I tried to reboot couple of times it started without any issues.

 

[veganfanatic]

I installed 4x8GB G,Skill Flare X F4-3200C16D-16GFX
My R5 2400G now achieves DDR4-2933 which is the fastest it can support without overclocking
at least now the performance of the CPU and memory are about as good as it is going to get

BIOS bugs sometimes reset the RAM speed to DDR4-1866

 

[jesse@revsearch.com]

The more sticks you have installed, the less likely you are to hit higher frequencies.
The best I can suggest is to follow the guidelines within the overclocking guide for memory here on these forums : https://forum-en.msi.com/index.php?threads/286610

Is this still true with the X570 Godlike with a 3950X? Does 4 sticks of high speed memory stress a 3950x memory controller like it apparently did with older AMD CPUs?

I never dreamed the memory decision would take a week. It's like choosing a camshaft in a race engine. After days of blowing my mind on memory I'm looking at  G.SKILL Trident Z Royal 32GB (2 x 16GB) F4-3200C14D-32GTRS  

I want it to run at 3200.  I've read about using 2 vs 4 sticks. Like this; 

https://forums.tomshardware.com/threads/ryzen-above-best-memory-settings-for-amds-3000-cpus-tested.3520120/  
https://www.gskill.us/forum/forum/product-discussion/ddr4/162477-ddr4-3200mhz-cl14-dual-rank

I think I understand rank, channel, but from the tomshardware thread what is 1T/2T? 

And none of it really nails down and answer about using 2 or 4 sticks in the X570 Godlike with a 3950x.

 

[RemusM]

Is this still true with the X570 Godlike with a 3950X? Does 4 sticks of high speed memory stress a 3950x memory controller like it apparently did with older AMD CPUs?

I never dreamed the memory decision would take a week. It's like choosing a camshaft in a race engine. After days of blowing my mind on memory I'm looking at  G.SKILL Trident Z Royal 32GB (2 x 16GB) F4-3200C14D-32GTRS  

I want it to run at 3200.  I've read about using 2 vs 4 sticks. Like this;

F4-3200C14D-32GTZN
https://www.gskill.com/product/165/326/1562838637/F4-3200C14D-32GTZNTrident-Z-NeoDDR4-3200MHz-CL14-14-14-34-1.35V32GB-(2x16GB
runs at 3200 on X570 Godlike with R9-3950X
Be sure the memory voltage is in the 1.35 - 1.40V

 

[jesse@revsearch.com]

Wow, that was fast, thanks!  That memory is on the QVL for both G.Skil and MSI.  Plus it's on the G.Skil tech's list.

All the stuff I read about using 2 vs 4 sticks with AMD seems to be for older AMD CPUs. It really doesn't make sense to me why there would be 4 memory slots if 2 sticks will run at higher speeds than 4 sticks. That seems like putting a two barrel carb on a four barrel intake - and acting like the 2 barrel is gonna run faster.

I've decided on 2 anyway, and G.Skil Royal.

 

[jesse@revsearch.com]

Here's an example of someone saying 2x modules is optimal.

4 DIMM slots, daisy chain. (2x8 or 2x16 optimal)

https://www.reddit.com/r/hardware/co...ke_it/erbejgm/

There more in that discussion about 2 vs 4, it's a discussion about the X570 Godlike board.

4 DIMM slots, daisy chain. (2x8 or 2x16 optimal)

What's up with that? On a board this overpriced, I see two reasonable avenues.
[list type=decimal]
[*]Anyone who buys this wants the best and will populate all slots; use T.
[*]Anyone who buys this is chasing clocks over all common sense, and knows what they're asking for. Use 1-slot-per-channel to avoid reflections.
[/list]
https://www.reddit.com/r/hardware/co...ke_it/erblfgj/

People say this but never seem to definitively say why! And if it's still true with the newest CPUs and mother boards.

Where I work we have myths that developed over time. People believe them to be true with out thinking about it. Since we are mostly men I call them old farts fables. That's what this "2 is better on daisy chain memory" allegation looks like to me, especially as it relates to the newest processors and motherboards.

 

[darkhawk]

Here's an example of someone saying 2x modules is optimal.

There more in that discussion about 2 vs 4, it's a discussion about the X570 Godlike board.

People say this but never seem to definitively say why! And if it's still true with the newest CPUs and mother boards.

Where I work we have myths that developed over time. People believe them to be true with out thinking about it. Since we are mostly men I call them old farts fables. That's what this "2 is better on daisy chain memory" allegation looks like to me, especially as it relates to the newest processors and motherboards.

2 is optimal if you want high memory speeds.

4 is possible at high memory speeds if you have a great CPU that isn't being overclocked heavily at the same time as high memory speeds.
Some get really lucky, and get the best of both worlds.

Why is it that way?

More than 2 dimms puts further stress on the IMC (integrated memory controller). 
Add stress is the same as adding more heat. In many cases, people are trying to both overclock the CPU cores as well as the memory. This leads to HUGE amounts of heat, on top of the added stress and heat from 4 memory modules vs 2 modules.

 

[okin.vd]

Hello All,

I have memory issues(crashes) on my B450 Gaming Pro Carbon Ac motherboard, and i have the latest BIOS update. It's the same issue i had during the summer, it dissappeared but reappeared with the latest bios update. 
My ram is Corsair Vengeance RGB 2x8 3200mhz ram CMW16GX4M2C3200C16
i was wondering is there will be another update

thanks.

 

[darkhawk]

Hello All,

I have memory issues(crashes) on my B450 Gaming Pro Carbon Ac motherboard, and i have the latest BIOS update. It's the same issue i had during the summer, it dissappeared but reappeared with the latest bios update.
My ram is Corsair Vengeance RGB 2x8 3200mhz ram CMW16GX4M2C3200C16
i was wondering is there will be another update

thanks.

No one will know if there will be another update.

I'll say it again, as I always say....unless you need something from a new update, I'd stick to whatever BIOS works the way you want. Until you start running into problems, stick with what works when it comes to these (incredibly unreliable and shitty) AGESA codes from AMD. 
I would NOT recommend updating until AMD gets their act together. Even after 3 years, they still can't get out good code for their own hardware.

 

[barost777]

Hi guys I have a problem with my MSI B450 GAMING PRO CARBON AC and Corsair vengeance RGB x4m8x3600c18
I have the newest BIOS and I could set up ram up to 3400mhz with xmp do I need to change timings if I used xmp profile?
How to unleash the extra power?
Btw I have ryzen 3600

On website this ram is supported and msi managed to set up it to 3600 on single and double channel.

 

[darkhawk]

Hi guys I have a problem with my MSI B450 GAMING PRO CARBON AC and Corsair vengeance RGB x4m8x3600c18
I have the newest BIOS and I could set up ram up to 3400mhz with xmp do I need to change timings if I used xmp profile?
How to unleash the extra power?
Btw I have ryzen 3600

On website this ram is supported and msi managed to set up it to 3600 on single and double channel.

There isn't just some magical way to make it work. 

If you haven't read parts of this thread, you probably should.

Getting fast RAM speeds isn't just about changing to XMP and getting it to magically work. Not all CPU's (especially AMD) will just support it with any given RAM out of the box. Often, given AMD's poor AGESA code, it requires manual tweaking to get it running well at high speeds. 

Latest BIOS isn't always the best option. For the X370/B350 series boards, the older BIOS's are actually more stable, and operate much better than the newer ones. The same could be said for many of the newer X470/B450 bios's as well. 

Realistically, you'll probably be manually tweaking voltages and possibly timings to get it to work at the rated 3600 speeds.
Or just be happy with 3400, save yourself 2 to 12 hours, and not be as fast as the DRAM possibly can support. (If you can't tell, I'd choose that option.....as things deteriorate over time, you'll be tweaking again).

 

[pkpatu2016]

I have a b450 tomahawk max that doesn't work well with ram. I have two memories (2x16gb ddr4 3200mhz .. Features: - Brand: Rise - Model: RM-D4-8G-3200D   Specifications: - Capacity: 16GB - Frequency: 3200Mhz - Type: DDR4 - Frequency: 3200 - CL15?17-17-35 1.2V - Latency: 15 - Pinout: 288 pin DIMM   Package content: - Diamond Rise Mode Memory) activates xmp on A1b1, does not work activating xmp on A2b2 .. even with xmp active it only works 2400mhz.setando manual, with voltages, nor beep. Another card with another ryzen processor got normal. I upgraded and changed the card no longer takes 3200mhz