Ryzen & DDR4 - Read before you buy.

[Guest]

Ryzen 3000 series cpu DDR4 Memory suggestions.

 

Purchase what you need.

The more memory you have (in GB) the more strain on IMC.

Is 16GB enough? Yea, probably for most gamers and average users. 

Get only 2 sticks. Most Dual channel configurations are in slots A2 and B2

 

AMD DDR4 Clock speed and timing suggestions. (for purchase)

 

3000mhz - CL 14-14-14

3200mhz - CL 14/16-14/16-14/16 

3400mhz - CL 16-16-16

3600mhz - CL 16-16-16 

3800mhz - CL 16-16-16 (desired IF 1:1 speed)

 

_________________________________________________________

 

What to do if my Memory has really loose timings? 

At the above, you use this for reference.

Start small. Work your way up, small increments. 

If you're going to try 16-16-16 timings, start perhaps at 3000mhz or 3200mhz.

 

tCL -16

tRCD -16 (both channels)

tRP -16

 

Memory Voltage - 

Most XMP profiles are 1.35v Manually set this.

 

Power Down mode set to disabled.

This feature throttles memory voltage at idle states. (instability for o.c.)

Gear Down mode (optional)  - this disabled allows for odd ram timings 

There is no need for Gear Down mode, you want nice even timing sets 

 

IMC-Integrated Memory Controller

IF-Infinity Fabric, always keep linked to memory speed

____________________________________________________________________________

 

Results. - 

 

Yes they will vary. 

The sweetest spot and Best performance is CL 16-16-16 3800mhz IF linked. 3600mhz is the next best thing. 

This quick guide is to get you started. There's a lot more to overclocking,

I just set this up so that at least you can have better performance than running only 2133mhz (1066 effective) with your Ryzen processor.

If your memory and system is only stable at 3200mhz, that's ok. It'll still perform noticeably better than stock 1066 15-15-15.

 

Good luck and have fun.

(may add more later - I'm tired. Been a long day)

disclaimer, I'm not liable or the forum it's staff and affiliates. 

you make your own choices to overclock or tweak your system.

 

 

[Jurrunio]

I'm not sure if this is a buy guide for those who just slap on XMP, or for those who do the tuning themselves.

[Guest]

Just now, Jurrunio said:

I'm not sure if this is a buy guide for those who just slap on XMP, or for those who do the tuning themselves.

Good, it's both.

[WereCat]

Why only 2 sticks? 

 

You get better performance with more ranks as long as you have good enough motherboard. 

[Jurrunio]

Just now, WereCat said:

Why only 2 sticks? 

 

You get better performance with more ranks as long as you have good enough motherboard. 

that limits clock and timings potential. Less sticks is always better, unless it's on a much inferor die model or you just need the extra capacity

 

3 minutes ago, ShrimpBrime said:

Good, it's both.

then I look forward to what you'll add, this is far from complete as far as I can tell

[geo3]

A much more in-depth article on the subject based on data from BuildZoid.

https://github.com/integralfx/MemTestHelper/blob/master/DDR4 OC Guide.md#overclocking

[emosun]

I miss buying memory that just works. there's a futuristic concept from decades past that needs to make a comeback.

[Guest]

Just now, Jurrunio said:

 

 

then I look forward to what you'll add, this is far from complete as far as I can tell

You're more than welcome to make comments, I can section them in and make note of your participation. 

 

I really was just going for stupid crazy basic. It's not trying to be an in depth OC guide...... Basic rules of thumb carry a long way.

[Guest]

6 minutes ago, WereCat said:

Why only 2 sticks? 

 

You get better performance with more ranks as long as you have good enough motherboard. 

Usually "ranks" means if theres memory chips on either one or both sides of the memory PCB. just an fyi. You meant memory slots...on the board. 

[WereCat]

Just now, Jurrunio said:

that limits clock and timings potential. Less sticks is always better, unless it's on a much inferor die model or you just need the extra capacity

 

Thats why I said as long as you have a good motherboard. 

But I assumed we are talking about Zen2. It's true that on the Zen1 I wouldn't recommend this as there are known issues with running 4 sticks. 

 

Anyway, on Zen2 you can push 4 sticks to 3600MHz quite easily. You will lose a bit on timings but not much more than 1ns to 2ns from my experience. While you gain a massivee advantage in bandwidth. 

 

My 3200MHz E-Die in QuadRank at 3200MHz beats DualRank B-Die 3600MHz in bandwidth. 

[WereCat]

2 minutes ago, ShrimpBrime said:

Usually "ranks" means if theres memory chips on either one or both sides of the memory PCB. just an fyi. You meant memory slots...on the board. 

I meant both 

[Guest]

The point of the thread isn't to show off something..... To give new users a quick idea of where to go with their rig. Simple as that.

 

And no, I don't want to pit my good B-die against your E-Die because I don't use it with Ryzen, it's in my Maximus X Hero with 8700K at 4300mhz..... CL 16

 

I'm well aware of what memory can do and can't do. Again, not the point. 

[WereCat]

2 minutes ago, ShrimpBrime said:

The point of the thread isn't to show off something..... To give new users a quick idea of where to go with their rig. Simple as that.

 

And no, I don't want to pit my good B-die against you E-Die because I don't use it with Ryzen, it's in my Maximus X Hero with 8700K at 4300mhz..... CL 16

 

I'm well aware of what memory can do and can't do. Again, not the point. 

fine, I just wanted to point that out since if anybody is willing to manually tune anything on their RAM then they may as well consider this 

 

anyway, good post but I would also add that if anybody ever changes any setting on their RAM then they should test for stability with memtest86 in case they encounter any errors that may corrupt their data 

[Samfisher]

1 hour ago, emosun said:

I miss buying memory that just works. there's a futuristic concept from decades past that needs to make a comeback.

They all work.  This is just for optimal performance.

[emosun]

3 minutes ago, Samfisher said:

They all work.  This is just for optimal performance.

yeah..

[SavageNeo]

My trident Z Neo has some really bad problems. It wont run at 3600mhz cl16. I have to manually put it to cl17

 

But yes, thank you for this goude