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

 

[flobelix]

It means the maximum speed AMD specified for two dual ranked DIMMS in dual channel is DDR4-2400

 

[LilleJohn85]

While im here i should ask this too, if it is so then if i want to use more then 16gb i need to use the lower MHz that is mentioned right ? Or rather said should

 

[imwechs]

Wait, i really getting confuzed now, 2400MHz for 2 DIMMs ?
i own only one Corsair Veangance LPX (2400MHz) 8gb does that mean i am one low ? or is this just a mention (IF) using 2 ?
(Will bite my nails meanwhile i get a awnser)

 The chart is conservative. I had 4 dimms I was able to get 2400mhz for four  and still only 2400mjz if I used only two. I decided to return these Corsair Dominator Platinums to Micro Cenrer and they credited my card. I then ordered G. Skill Flare X, which is verified on Ryzen.  I bought four 8GB DDR4 3200 cas 14-14-14-34.
Within 5 minutes of installing them,I had two dimms running at 3200mhz with 14-14-14 timing.  Now all four is still limited to 2400 MHZ. I will hold back using all 4 dimms until a higher speed is permitted in a revised bios in May. Unfortunately Micro Center does NOT at present carry G.Skill Flare X ram. So my order went to Newegg. The memory makes a huge difference in fps for games.

 

[flobelix]

It is what AMD specifies... Anything else can work or not. It's like oc always is.

 

[imwechs]

While im here i should ask this too, if it is so then if i want to use more then 16gb i need to use the lower MHz that is mentioned right ? Or rather said should

This is a guide. I was running at higher than what the guide said with r dimms of sangle ranked chips. But you do NOT have to settle for this. If you want to run at fullmemory speed go out and buy Ryzen certified memort.  G.Skill Flare X kits are Ryzen certified. I bought one and am getting full speed of DDR4 3200 at CL 14-14-14.  It is available at Newegg. They also have a kit that runs at 3466mhz.

 

[dragianx]

So, GSkill did it right iMHO with the flare x, did one cold boot at auto, went in returned, immediately went to 3200 with BIOS v. 1.3 with my x370 XPower Titanium.  Using the flarex 3200 16 GB kit (although I really wanted 32GB just because) but call me happy with Ryzen and MSI, big shout out to G.Skill for getting on the ball.

To the photos lol:

 

[akay.gulmersin]

When these issues are resolved with the new BIOS.

 

[r.sarwar87]

Hi.

So I have been investigating which rams have single ranked Samsung B die.

Any g skill ram with the following serial number is a Samsung B die: xxx-x500-xxxxx.

Any 3000c14/3200c14/3400/c16 or above are Samsung b die.

Also all 16gb modules are none Samsung b die.

Crucial does seems to only use micron chips. No idea about other brands. Hope this helps

 

[mr.raider2]

Corsair web site says the CMK16GX4M2A2666C16 is compatible.

Anyone use that kit?

http://www.corsair.com/en-us/landing/ryzen

 

[paulinew]

Can some one help me as im pulling my hair out i have X370 GAMING PRO and im running Corsair 2x8gb CMU16GX4M2C3000C15  it boots fine at 2133 but if i try any other speed it boots up and beeps 6 time but continues into windows, in windows it reports the correct speed but its the 6 beeps that are worrying me can anyone help?

Thanks

 

[darkhawk]

For the time being, ignore them.
Once a new BETA or released BIOS is available, it should help resolve those issues.

 

[paulinew]

Thanks for that, i was a little worried i know my Rams not on the list by name but its basically Vengeance with LED's so i thought it would be ok.

 

[darkhawk]

No worries. Ignore the beeps for now. If it boots to windows I wouldn't worry about it.

Hopefully, once the next BETA BIOS is released, we will see that issue resolved.
I wish I could say I knew when it would be released, but the best I can say is I was told early this week.

 

[paulinew]

Is the beeping on boot something that other owners have a issue with or am i the only 1.

 

[darkhawk]

Is the beeping on boot something that other owners have a issue with or am i the only 1.

Others have had it from time to time. Most just ignore it and haven't had issues.

 

[paulinew]

Thanks im reading another thread and the owner is getting 5 beeps it seems different people get different number of beeps, i dont understand it but my rigs been running 2 days now without issue its slow to post as many have reported but it boots any ram speed just with beeps and its reported correctly inside windows. I also seem to have great temps with command center at idle reporting around 42c i know im supposed to knock 20c off, wow thats pretty low but im using Deepcool 240 rad with 2 corsair fans and have ordered another set of screws for puch pull config to keep the temps right down before i do any overclocking. I wanted to use it for a few days before touching CPU speed to make sure its all good.

 

[kagetora34]

Hi All,

(X370 Pro Carbon)

Using Corsair 3000Mhz C15 in my board (2x 8GB) - CMD16GX4M2B3000C15 - A-XMP won't post for 2993 - the old loop until you reset.

I can manually run 2666 - which is what I'm currently on.

I'm guessing a bios update is called for to improve this - but, is there anything I can try in the mean time? e.g. currently on Auto NB voltage, does raising this help? (not sure what the limits are though)

Cheers!

Probably will. From what I understood of the current situation, going above either 2400 or 2666 is mostly a gamble. Remember, this is still a brand new platform which is something we haven't had in quite some time whether it's AMD or Intel. (gotta love that Blue Man Group tho ) I'm sure things will improve with time tho and will also get cheaper as the process begin to mature and they learn how to do things more efficiently. Intel has a bit of a head start on AMD as Intel's first venture into DDR4 was with their X99 and later their Z170 platforms while AMD has just now moved up to DDR4.

Which I believe explains the lack of compatible memory and Motherboard issues... Which weren't helped by AMD's rush to market where board partners were given around 2-3 weeks to pull something together in terms of BIOS drivers. I'm optimistic that things'll improve in time but for now, I'd stick with 2666 if that's what runs the most stable for you.

 

[rasit_v]

Hello,

I'm running on a 1700X with MSI X370 Gaming Pro Carbonand Corsair Vengeance LPX CMK16GX4M2B3000C15 however i can't get it above 2133MHz.
A few days ago i managed to run @ 2667MHz for almost a day but in the end i had to restart my pc and switch to 2133MHz because it simply stopped working.

Just wondering what i can do right now to at least run at 2667MHz?
What timings should i use?

 

[eugkra33]

So I'm about to maybe buy a b350m Gaming Pro. Is this a bad idea? How far has MSI come along in all of this memory comparability with this board? Planning to use a 1600 and OC to 3.9-4ghz, but I'm not sure if the 3 MOSFETs will go up in flames. Also, does the gaming pro have NB voltage control? Trying to decide between this and a Gigabyte AB350m Gaming 3

 

[darkhawk]

So I'm about to maybe buy a b350m Gaming Pro. Is this a bad idea? How far has MSI come along in all of this memory comparability with this board? Planning to use a 1600 and OC to 3.9-4ghz, but I'm not sure if the 3 MOSFETs will go up in flames. Also, does the gaming pro have NB voltage control? Trying to decide between this and a Gigabyte AB350m Gaming 3

Compared to the other B350 boards, it should be at about the same state. It had a BIOS update yesterday, along with all the other B350 boards. 

As far as the MOSFET's, I can't really provide any information about that. We haven't had many complaints from users regarding the B350M Gaming Pro so far. So I really don't know.