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RYZEN DDR4 MEMORY, WHAT YOU NEED TO KNOW!

For those interested, I have got my G.Skill mems up to 2933Mhz.

I have the Trident Z (non RGB) 32GB (2x16) 3000Mhz C14 rated kit. I was under the impression that I would struggle to get anything more than 2400 on this, but I am now up to 2933, quite easily.

It would boot straight into 2666 on defaults, using BIOS 1001.

I had to lower the timings to hit 2933, I set it to 18,18,18,18,48 and it boots and runs fine.

I can actually go to 18-14-14-14-28, but that seemed to give worse performance. I settled on 18-17-17-17,48, as that seem to give the best benchmarks.

My kit is rated on Intel systems for 14-14-14-14-48.

so you can get 3000 just about on 32GB kits. :D

Super happy with that so far :D

Edit: I tried some BCLK last night, but it just wont have it. I went from 105 down to 101 and it just wont boot.

Also 1.375 DRAM volts - LLC=Extreme takes it up to 1.425 most of the time.

DRAM boot voltage 1.4v
 
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I know that the prevailing theory is that ram compatibility and stability will increase over time but is there any hard evidence that it's not actually an underlying issue with the memory controller and possibly one that can't be 'fixed'?

Just concerned there may be an element of wishful thinking going on.
 
Vish Petrol said:
How can you check whether memory is single or dual rank?

And is there a difference between 2 stick and 4 in getting them up to faster speeds, and overclocking? As i have seen a good deal on some 16 gb 3ghz c15 ram, but its 4 sticks and not 2.
Click to expand...


AFAIK 2 sticks are faster than 4. Pretty sure that will always be that case.
 
djbully said:
AFAIK 2 sticks are faster than 4. Pretty sure that will always be that case.
Click to expand...

Depends. With 32GB 2x16GB Double Rank is just as overclockable as 4x8GB Single Ranked at the moment. It depends whether or not it ends up preferring single ranked or less DIMMs populated.

But yes, with all single ranked for 16GB, 2 DIMMs would be MUCH preferable over 4.
 
I have seen some g skill ripjaws 5, which are 4 modules, one is at 3000mhz c15 at 1.35v and the other is at 2800mhz c15 at 1.25v. I was originally going to get the 2800mhz 1.25v and overclock it, but it doesnt even mention that it is rated to run at 1.35v. Is this a typo? Or can It not run at 1.35v

Also seen a 2 module kit at 3000mhz c14, for £10 more than the other 2 kits so would that be better as its got sighter timings and is only 2 modules? From what ive read, on z170 motherboards they overclock very well, so I would hope to overclock it, once ryzen bios' get up to speed
 
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I posted this in the motherboard section as well, but, just in case you guys don't head over there. MSI have released a bios update for the X370 pro carbon, supposed to help with memory compatibility.
 
Sorry if this has already been discussed but has anyone got G.Skill Flare X 3200Mhz cl14 kit yet? Interested to know being "designed for Ryzen" whether it actually hits 3200Mhz at cl14.
 
Scougar said:
It seems it really still depends on the motherboard and BIOS version at this point. An unfortunate situation.
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You would think though the ram manufactures can say it is just bios issues and not their problem when talking about xmp overclocking. But with G.Skill and their Flare X range designed for ryzen they would have validated the memory on a ryzen setup and therefore it should work as advertised. Maybe I am a little simplistic as haven't got much experience with Ram overclocking.
 
Is the G.Skill Flare X not just the Trident with definite single rank Samsung B ICs? That's all you really need, other than that you need to motherboard to be able to get the RAM there.
 
Crockett said:
Sorry if this has already been discussed but has anyone got G.Skill Flare X 3200Mhz cl14 kit yet? Interested to know being "designed for Ryzen" whether it actually hits 3200Mhz at cl14.
Click to expand...

I have the flare-x and it booted straight up at 3200mhz cl14, just set the xmp profile, nothing more. By contrast I had some (from the QVL) kingston 3200 CL16 that wouldn't post beyond 2133mhz
 
I install a set
Crockett said:
Sorry if this has already been discussed but has anyone got G.Skill Flare X 3200Mhz cl14 kit yet? Interested to know being "designed for Ryzen" whether it actually hits 3200Mhz at cl14.
Click to expand...
Installed a 16GB set of G.Skill Trident Z RGB about 20 mins ago, just set the profile in BIOS and booted. Going to have a game on BF1 to give it a test. I will do a memtest usb boot drive at some point to test it more.
 
csutcliff said:
I have the flare-x and it booted straight up at 3200mhz cl14, just set the xmp profile, nothing more. By contrast I had some (from the QVL) kingston 3200 CL16 that wouldn't post beyond 2133mhz
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Cheers that is exactly what I am hoping for, also shows that at least up until the 3200Mhz range the memory compatibility issues should get sorted.
 
Howie87 said:
I know that the prevailing theory is that ram compatibility and stability will increase over time but is there any hard evidence that it's not actually an underlying issue with the memory controller and possibly one that can't be 'fixed'?

Just concerned there may be an element of wishful thinking going on.
Click to expand...

I'm sure its not just wishful thinking. AMD have said that Ryzen is good for 3600mhz RAM, they tweeted a picture a while ago with an ASUS mobo and Trident Z memory and said it was running at 3400mhz. There are also reports of people testing the updated microcode and getting good results at 3600mhz, plus on AMDs website they say updates will be coming:

We have internally observed good results from 2933, 3200, and 3500 MT/s rates with 16GB kits based on Samsung “B-die” memory chips.

Finally, as part of AMDs ongoing development of the new AM4 platform, AMD will increase support for overclocked memory configurations with higher memory multipliers. We intend to issue updates to motherboard partners in May that will enable them, on whatever products they choose, to support speeds higher than the current DDR4-3200 limit without refclk adjustments. AMD Ryzen™ processors already deliver great performance in prosumer, workstation, and gaming workloads, and this update will permit even more value and performance for enthusiasts who chose to run overclocked memory.

https://community.amd.com/community...4/tips-for-building-a-better-amd-ryzen-system

I think its more of a case that the release was rushed a bit, and motherboard manufacturers are working to catch up, and AMD has more testing to do to officially support the faster rated RAM. I'm hoping it doesn't take until May for the updates.
 
I have my 16GB of GSkill TridentZ at 2933MHz 14-14-14-34 at 1.35v. Just a .00625 offset on the Vsoc. Totally stable.
But whatever I do I can't get 3200MHz on it (which it is rated for). 2933 does very nicely though.
Crosshair VI.
 
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Safetytrousers said:
I have my 16GB of GSkill TridentZ at 2933MHz 14-14-14-34 at 1.35v. Just a .00625 offset on the Vsoc. Totally stable.
But whatever I do I can't get 3200MHz on it (which it is rated for). 2933 does very nicely though.
Crosshair VI.
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They are 3200 rated @ T2 have you tried 0902/0034 bios ??

I sold Hynix gskills loosing 25 pounds and ordered Patriot Viper Elite. Wanted to try something different than Gskill Team Force use Hynix afaik and this was selling point for me from tweaktown:
we were able to get this kit of 3200MHz memory to run at 13-13-13-36 1T. Thats what i want low timings :) Hope i can get them running at that below 1.4 volts
Could not live with Hynix as it's only part of my ryzen build thats on my mind all the time

Once they are here ill report back. Atm on my 2x ripsaw 4 from x99 platform :P 8gb will do for few days :P
 
Howie87 said:
I've no idea if my 3000MHz Vengeance 8GB sticks are Hynix or not. They run at 2933 though (at stock CPU clocks with a 1700).
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Use AIDA go to motherboard>SPD it will tell you there. My vengeance led are hynix and aren't stable above 2666. I have some gskill 3600 rgb at home I'll fit them tonight and report back.
 
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