AMD Ryzen 3000 Builders Thread

[Kenmitch]

But what is the actual payback on memory oc?

Bigger e-peen for starters.

I guess it's game dependent, but minimum frame rates in some titles. I guess any app that's memory dependent would also benefit to some extent as long as a person doesn't whack their ram latency during the process.

I've had DDR4-4400 running on my system with IF out of sync (1200 MHz, lulz). It was terrible. There are also some weird circumstances where people trying to run DDR4-3800 with IF @ 1900 MHz will get no gain in performance, even with timings identical to what they had at DDR4-3733. Some quirk of the IMC. Not everyone has encountered that problem. There are a few elite setups out there running DDR4-3800 CAS/CL14, but they're rare.

I'm going to play around with it sometime today and see what happens. I'm not sure if my b-die is worthy of anything higher than 3600 MHz, but might be able to loosen the timings? I'll probably just start by viewing Aida64 latency results to see what happens and take it from there.

 

[Makaveli]

My G.Skill b-die kit does 3600 MHz CL14 with a slight voltage bump to 1.45v's. Stock voltage for my kit was 1.35v's at 3200 MHz CL14.

I picked up my kit before Zen2 was launched as I originally was going to build my rig with the Bestbuy Crosshair VI Hero/R5 1600 combo that I picked up for $199 on their blowout sale. I paid the b-die tax as I wanted to go with the most compatible offering for the platform.

My kit is also B-die so I should be able to also do 3600 CL14 @ 1.45v

And looking back now seems paying that tax was a wise decision.

 

[Kenmitch]

My kit is also B-die so I should be able to also do 3600 CL14 @ 1.45v

And looking back now seems paying that tax was a wise decision.

Only way to find out is to give it a whirl and try it out.

The latest non beta uEFI for my x570 MB allows me to boot my b-die up at 3733 MHz CL14 1:1 with some stability so far. I'm going to try and see if it'll take the Dram Calculator settings and be stable.

I've had DDR4-4400 running on my system with IF out of sync (1200 MHz, lulz). It was terrible.

I had no luck locking the IF to 1800 and increasing the memory clocks as it drops to 1:2 mode.

 

[DrMrLordX]

But what is the actual payback on memory oc?

Depends on the application. A few percent here, a few percent there . . . it's all that's left to overclocking Matisse in some situations.

I had no luck locking the IF to 1800 and increasing the memory clocks as it drops to 1:2 mode.

Weird. Mine will, though I use Ryzen Master so that may allow me to force the UEFI to do things it wouldn't otherwise do. And using Ryzen Master has its own downsides (it locks out many settings so that only it can make certain changes to the UEFI. Kinda creepy).

 

[Ajay]

I had no luck locking the IF to 1800 and increasing the memory clocks as it drops to 1:2 mode.

Hmm, thought most of the 3000 series would hit 1800 FCLK. I know it takes some tricks to hit 1900. I’d have to back off my timings to hit 1900 (3800MHz) - so it’s not worth it to me.

 

[Kenmitch]

Depends on the application. A few percent here, a few percent there . . . it's all that's left to overclocking Matisse in some situations.

Weird. Mine will, though I use Ryzen Master so that may allow me to force the UEFI to do things it wouldn't otherwise do. And using Ryzen Master has its own downsides (it locks out many settings so that only it can make certain changes to the UEFI. Kinda creepy).

I have the budget oriented MSI MPG x570 Gaming Plus motherboard so there really isn't a whole lot of options as far as tweaking goes. Got the basics and maybe a little bit more.

Hmm, thought most of the 3000 series would hit 1800 FCLK. I know it takes some tricks to hit 1900. I’d have to back off my timings to hit 1900 (3800MHz) - so it’s not worth it to me.

My motherboard has zero issues running FCLK at 1800. Been running my b-die at 3600 CL14 since July

I was trying to lock the FCLK at 1800 and then try upping the memory clocks to see if I could get some extra performance. I know some motherboards allow such a thing, but mine doesn't it looks like as no matter what I tried it wouldn't work.

I'm going to see how much latency I can shave off of 3800 and see how she goes. All I did was pick the memory try it 3800 MHz option with loose timings in the uEFI and changed the ram voltage to 1.45v's like I had with 3600 MHz CL14.

Latency looks decent with what looks like overly loose timings.



I haven't done any hardcore testing yet, but at least it'll pass the basic memory test included in the Ryzen Dram Calculator. If I can shave off a couple ns of latency then running at 3800 MHz might be worth it.

 

[DrMrLordX]

Interestingly enough, you can also shave off memory latency by raising CPU clockspeed.

Your mem read and copy bandwidth are being held back by something, btw. I get around 58 GB/s Read with DDR4-3733 14-16-14-28 1T. There are a few subtimings that can affect that number.

 

[Kenmitch]

Interestingly enough, you can also shave off memory latency by raising CPU clockspeed.

Your mem read and copy bandwidth are being held back by something, btw. I get around 58 GB/s Read with DDR4-3733 14-16-14-28 1T. There are a few subtimings that can affect that number.

I only have about an hour or so of up time running at what's shown in the image. I haven't tried playing around with any timings yet. It looks really loose compared to what the Dram Calculator suggests. I figured I play around doing some of that Intel real world testing before trying to tweak it for better performance.

Snaps photo of Dram Calculator's suggested settings and heads off into the uEFI....I'll be back.

 

[Makaveli]

I have the budget oriented MSI MPG x570 Gaming Plus motherboard so there really isn't a whole lot of options as far as tweaking goes. Got the basics and maybe a little bit more.



My motherboard has zero issues running FCLK at 1800. Been running my b-die at 3600 CL14 since July

I was trying to lock the FCLK at 1800 and then try upping the memory clocks to see if I could get some extra performance. I know some motherboards allow such a thing, but mine doesn't it looks like as no matter what I tried it wouldn't work.

I'm going to see how much latency I can shave off of 3800 and see how she goes. All I did was pick the memory try it 3800 MHz option with loose timings in the uEFI and changed the ram voltage to 1.45v's like I had with 3600 MHz CL14.

Latency looks decent with what looks like overly loose timings.

View attachment 16015

I haven't done any hardcore testing yet, but at least it'll pass the basic memory test included in the Ryzen Dram Calculator. If I can shave off a couple ns of latency then running at 3800 MHz might be worth it.

Your numbers look good.

Here are mine at stock XMP settings.



And then with Ryzen Dram Calc fast profile



Will have to see what I get at 3600 speeds.

 

[Kenmitch]

Your numbers look good.

Here are mine at stock XMP settings.



And then with Ryzen Dram Calc fast profile



Will have to see what I get at 3600 speeds.

Looks like you got some work to do on yours still. You'll need to milk it as there really isn't a whole lot to tweak on these new AMD offerings.

 

[Kenmitch]

Frick! I took a photo of Ryzen Master showing the ram timings, but forgot to take one of Dram Calculators suggested settings.

Just so booting into uEFI wasn't a total waste of time I picked the other try it memory option for 3800 with somewhat tighter timings.



I'll have to take another look at Ryzen Master and see if other settings changed besides just the basics.

 

[Makaveli]

Looks like you got some work to do on yours still. You'll need to milk it as there really isn't a whole lot to tweak on these new AMD offerings.

I would actually like to see my numbers compared to others at 3200 speeds.

Already have a point of reference for the 3600 numbers.

 

[Kenmitch]

I would actually like to see my numbers compared to others at 3200 speeds.

Already have a point of reference for the 3600 numbers.

After I'm done tweaking 3800 MHz I'll save the profile and set mine back to 3200 MHz CL14 for comparison.

Here's my almost tweaked out 3800 MHz. I'm not done yet, but it's looking decent so far. I only did some of the settings shown in the calculator for the safe preset so far. I noticed the voltage suggested was lower so I dropped mine to 1.42v's for testing.



The b-die tax looks to be shrinking!

 

[EXCellR8]

kinda sorta itching for some faster memory, but of course I'm still on the older chipset; I'm too lazy to tweak it (and probably fail with instability anyway).

while my $330 upgrade was a nice improvement over the 1700, it's far from noteworthy. plus, this core/thread count AMD is teasing is just tantalizing.

 

[DrMrLordX]

@Kenmitch

Your DRAM latency is already a bit lower than mine (most recently, I measured 65ns). Pretty good stuff overall.

 

[Kenmitch]

@DrMrLordX

The Dram Calculator is nice, but I wish it had the option to select CL and spit out some suggested settings. My ram can take more than it'll spit out at 3800 MHz so I guess I have to wing it and maybe read some reviews to get an idea of what settings to try next.

Here's my almost done 3800 MHz CL15 which may have some room for a little bit more performance. It looks to be almost firing on all cylinders, but might be able to tweak it a little bit more. I think I read in a review that at 3800 MHz DDR4 has a max read of around 60000 MB/s so I might be tapped out already.

64ns was a really tough nut to crack...lol



I've done some quick memory testing along with CB, Handbrake, Blender, and some quick gaming to see. Of course I've done some of that silly Intel real world testing along with it.

I had no luck running CL14, but didn't try juicing the voltages to get it. I'm unable to make the jump beyond 1900 FCLK, but wasn't really expecting to able to run 1900 when I tried it. I had no luck even getting this high with the previous uEFI rev's from MSI.

 

[Makaveli]

What are you using to check stability on these clocks and timings?

 

[Kenmitch]

What are you using to check stability on these clocks and timings?

I've done some quick memory testing along with CB, Handbrake, Blender, and some quick gaming to see. Of course I've done some of that silly Intel real world testing along with it. No bsod's, no funny stuff noticed, cold boots, wakes from sleep, etc so it's most likely OK for now.

I'll get to some hard core memory stability testing once I think it's totally tapped out as far as performance. I see no need to do extensive testing until then.

I'm running 6 instances of Mem Test currently, but left around 1.5 GB's of memory free so I can continue some of that Intel real world testing out. So far so good.

 

[Ajay]

Did you guys buy Aida64? I downloaded it and almost every field says "Trial Version".

 

[EXCellR8]

it's only like $40 for a few PC's... Extreme version anyway

short answer: yes

 

[IEC]

Just installed my 3950X on a ROG Strix X470-F using AGESA 1004 BIOS and a few months out of date Windows 10 install. Looks to clock between 4150MHz-4175MHz for non AVX 32-thread workloads while hitting 3950MHz-3975MHz for full 32-thread AVX2 workloads at stock settings. Might be able to improve this with some tweaking.

CPU-Z bench results for fun:


PBO disabled in BIOS. Swiftech 360mm rad for cooling.

 

[Makaveli]

a few months out of date Windows 10 install.

You need to make sure you are atleast on Win 10 build 1903.

 

[Kenmitch]

What are you using to check stability on these clocks and timings?

I went ahead and just let the mem test app run while I went to work. Looks like it's been 10hrs so far. I think I'll just kill it and let my memory rest a little while before I try and tweak some timings.

Never thought I'd get 3800 CL15 out of my b-die when I purchased it.



I'll have to read a guide or two and see if I can tweak some more timings to get a little bit more out of it.

 

[Hans Gruber]

Here is that XPG 3600mhz memory. I just started working on it. 3733mhz

 

[Hans Gruber]

View attachment 16064
Here is that XPG 3600mhz memory. I just started working on it. 3733mhz

Here are my updated timings. There was some weird stuff going on my command rate. It's now 1T