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

 

[rindman]

Additionnal information : I'm running on the x370 Gaming Pro Carbon.

 

[mfeinberg01]

I am on the Titanium, and not running the exact same sticks but I think ours might have the same ICs (I am running the Corsair LED 3200's). I disabled XMP, set speed manually, left timings on Auto, and set ram voltage to 1.35 and I was able to POST at 2933 (with the latest BIOS). Prior to that, I could POST at 2400 with timings at 14-14-14-36, voltage at 1.25 and the rest the same...

If those fail, you can try bumping NB slightly to 1.00v or 1.10v (I might have mine bumped for 2933...don't recall offhand.)

 

[teekaypl]

I just wanted to add my memory information here since I see that many people buy RAM without even looking at the memory support list on the MSI website, just like I did my first time around.

My ram is running stable at 3200mhz, I only get 7 beeps from the computer when it reboots, but starts right up. Been running like this for the past two weeks since I bought the proper RAM sticks.

[attachthumb=1]

Here it is:
Ram: Corsair Vengeance LPX 16gig DDR4 3600 (CMK16GX4M2B3600C18)
MB: X370 Gaming Carbon (BIOS v1.2)
CPU: R7 1700

 

[Nichrome]

@teekaypl
Thanks for sharing  Hopefully more reports from users will get things more stable sooner than some may think.

 

[rindman]

The bios doesn't have any trouble to read the timings ( memory Z is the same thing ).

Why we don't have more settings to tweak on the OC menu ? Where's the bclk, fclk, other dram timings settings ( can't change to 2T by example ).

In the past, load line calibration can be adjusted by value, not by profile lol.

 

[mfeinberg01]

The bios doesn't have any trouble to read the timings ( memory Z is the same thing ).

Why we don't have more settings to tweak on the OC menu ? Where's the bclk, fclk, other dram timings settings ( can't change to 2T by example ).

In the past, load line calibration can be adjusted by value, not by profile lol.

You probably realize all AM4 BIOS's are works-in-progress. The latest AGESA code enabled BLCK modifications for the on-CPU BLCK but those have been recalled due to issues/concerns. They are getting there, but it's going to take a little more time. It feels like forever, but it's only been about a month?...

 

[rindman]

I see ... So AMD did it on purpose, for what ?

 

[Nichrome]

I see ... So AMD did it on purpose, for what ?

In my opinion, AMD was not ready for the release. And therefore we have tons of issues with chipset now. AMD not ready = MSI, ASUS, Gigabyte etc also not ready.

 

[mfeinberg01]

In my opinion, AMD was not ready for the release. And therefore we have tons of issues with chipset now. AMD not ready = MSI, ASUS, Gigabyte etc also not ready.

AMD basically admitted as much when they stated they had all hands focusing on the chip itself and didn't really start focusing on firmware/microcode until after launch. Honestly, knowing what I know now I am surprised things weren't even worse. What we are seeing really isn't much worse than what Intel has gone through (I think with the x99 chipset, but I really don't recall. Didn't pay a lot of attention).

 

[darkhawk]

AMD basically admitted as much when they stated they had all hands focusing on the chip itself and didn't really start focusing on firmware/microcode until after launch. Honestly, knowing what I know now I am surprised things weren't even worse. What we are seeing really isn't much worse than what Intel has gone through (I think with the x99 chipset, but I really don't recall. Didn't pay a lot of attention).

I'd say AMD has it much worse.
Intel had issues, but most of those have been firmware/software related. 
Not software/firmware related on the chip itself. Which really, to me, says the hardware wasn't done right in the first place. Software on a chip is meant to fix issues with the hardware inside the chip....

 

[Riptide]

My system is stable.  I can't run my RAM at over 2400mhz without occasional bugcheck reboots.  That is my only issue right now.  Perhaps if I were trying to do more than run out of the clock CPU speeds it would be a bigger deal to me than it is.

Seems like this situation could be a lot worse.  It could be better.

We just need to relax and be patient.

 

[sneakgamingwww]

My system is stable.  I can't run my RAM at over 2400mhz without occasional bugcheck reboots.  That is my only issue right now.  Perhaps if I were trying to do more than run out of the clock CPU speeds it would be a bigger deal to me than it is.

Seems like this situation could be a lot worse.  It could be better.

We just need to relax and be patient.

What's "bugcheck reboots"?

 

[normaron]

Hi, 

Just put up my build and the system keep crashing and can't do any productive work on it. I am running everything at stock now, most of the crash gives me a stop code of "Memory management". Anything I can do to make it stable at least? Should I adjust anything in the bios?

My build is:
- Ryzen 1800x 
- MSI X370 Gaming Pro Carbon (updated to latest v1.2 bios)
- Corsair LPX 32GB (4x8GB) DDR4 DRAM 2400MHz C14 (CMK32GX4M4A2400C14)
- M.2 Samsung 960 EVO
- Asus 1070 Dual O8G

 

[darkhawk]

Hi,

Just put up my build and the system keep crashing and can't do any productive work on it. I am running everything at stock now, most of the crash gives me a stop code of "Memory management". Anything I can do to make it stable at least? Should I adjust anything in the bios?

My build is:
- Ryzen 1800x
- MSI X370 Gaming Pro Carbon (updated to latest v1.2 bios)
- Corsair LPX 32GB (4x8GB) DDR4 DRAM 2400MHz C14 (CMK32GX4M4A2400C14)
- M.2 Samsung 960 EVO
- Asus 1070 Dual O8G

Make a thread in the Gaming motherboard section. See : >>Posting Guide<< and >>Please read and comply with the Forum Rules.<<

 

[normaron]

Make a thread in the Gaming motherboard section. See : >>Posting Guide<< and >>Please read and comply with the Forum Rules.<<

Noted, will do

 

[Riptide]

What's "bugcheck reboots"?

A bugcheck reboot is a blue screen of death.  You go into your event viewer under system and see a note there indicating the system had restarted unexpectedly.  In this case, for reasons unknown, the system isn't leaving the blue screen up for me to see when I come back to the computer.  I had checked the box to not restart after a crashdump so I'm not sure why it completely restarts.

Regardless the condition is clearly related to setting the memory modules higher than 2400mhz.  Put them back to that speed and it never happens.  A-XMP doesn't work on my Tomahawk with the 1.10 release BIOS and my memory modules.

My memory modules are samsung b-die which are supposed to be the more compatible type.  Apparently not in my particular case anyway.
GSKill Trident Z PC3200 CL14

 

[wickedzany]

Having couple of issues with my new Ryzen build. 

Specs for the computer:
CPU: AMD Ryzen 1700
Motherboard: MSI B350 Tomahawk
Memory: Corsair 3000C15 LPX 2*8GB (CMK16GX4M2B3000c15)
PSU: COrsair 650 RMx
GPU: MSI RX 480 Gaming X

The first problem was to get the computer running. Would freeze on the start up screen where you can enter bios settings. Eventually could install windows using beta bios 1.32. Yesterday I tried all the official bios releases. but the computer would always freeze at the start up.Now starts with 1.32 and post time is quite good, however can't get ram above 2133. I have tried changing every setting from BIOS I have been able to find from different Forums. But eventually fails to start with anything above 2133. Cant find this memory from the MSI supported list even though I remember checking the compatibility before buying this set and found it then. (Maybe I checked wrong).  Also every program (in BIOS and in Windows) finds 2 stick of RAM but I can only access 7.9 GB of the RAM. In Task Manager it says 8,1 GB reserved for Hardware. Tried googling for solution but could not find anything that would work. (Resetting bios, taking battery off, building from scratch, changing settings etc)

So maybe I should just change the motherboard or RAM kit? I still have 2 days to return them

 

[brotaque]

Hello everyone,

First post on this forum.
I also have issues with my X370 Titanium motherboard and my Corsair Vengeance LPX 3000, 16GBx2.
They are now working at standard DDR4 RAM, 2133Mhz.
I flashed my BIOS to version 1.3 and tried A-XMP. It sees the correct latency, but after I save and reboot it just enters a boot loop and I need to clear CMOS.
I tried to set them manually to 2933 but so far I managed to make them work to 2667 with a DRAM voltage of 1.3V.
I notice that MSI and other manufacturers have not listed memories modules with capacities over 16Gb in their compatibility lists. Mostly 8GB modules and 16GB.
I hope that future BIOS updates will fix the issue, but this is indeed annoying.
One more thing, when my memories were running at 2667Mhz, running a test in Cinebench has resulted in a lower score than the first time I tried after I assembled the system and everything was stock.
Any ideas?

 

[Nichrome]

One more thing, when my memories were running at 2667Mhz, running a test in Cinebench has resulted in a lower score than the first time I tried after I assembled the system and everything was stock.
Any ideas?

Pretty common. I do not know how that works, but for example, my RAM at 2933MHz (Skylake 6700K in use) will generate about 10-15pts less in Cinebench than 2800MHz or even 2133MHz with same CPU clocks. Sometimes couple of reboots, and 2933MHz would get 50pts more (???) than previously, but on another run, it's lower pts again..

 

[LilleJohn85]

2) At these moment these are the memory configs & speeds guaranteed by AMD for their Ryzen 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.

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)