[Official] AMD Ryzen DDR4 24/7 Memory Stability Thread

happyluckbox · Oct 10, 2017

Quote:

Originally Posted by poah

is there any real point in increasing the voltage for a few extra MHz or one CL point? I'm running 2993 @ 1.35v 15 17 17 36 currently

Depends how much more voltage. You can't ask an arbitary question like that and expect a proper answer

poah · Oct 10, 2017

Quote:

Originally Posted by happyluckbox

Depends how much more voltage. You can't ask an arbitary question like that and expect a proper answer

sorry it was too tough for you to see what I was meaning

Increasing MHz from 2993 to 3200 won't make any real difference to render times or fps in games. Like wise going down one point in your RAM timings will have the same lack of real world difference so why pump the voltage up to get 3200mhz etc when all it is doing is heating up your motherboard. There is a point of diminishing returns when tuning ram just like CPU overclocking. I could get 4.0ghz but the voltage increase was huge to what 3.9 was.

chew* · Oct 10, 2017

Quote:

Originally Posted by poah

sorry it was too tough for you to see what I was meaning

Increasing MHz from 2993 to 3200 won't make any real difference to render times or fps in games. Like wise going down one point in your RAM timings will have the same lack of real world difference so why pump the voltage up to get 3200mhz etc when all it is doing is heating up your motherboard. There is a point of diminishing returns when tuning ram just like CPU overclocking. I could get 4.0ghz but the voltage increase was huge to what 3.9 was.

In an effort to answer your question in a real world scenario.

I'm tuning this system for an app called agisoft photo scan pro. Its basically rendering and the system will run non stop 24/7

Now being realistic lets just toss all results above 3200 away and just compare the results at 3200 by me versus everyone else.

For 3200 I only need 1.36v and it took quite some time tuning wise to get the system stable with the least volts.

Regardless take a look at some of the lesser scores and compare the time it took.

even if comparing to the 1 sec difference results that 1 secs = 30 secs in an hour multiplied by 24 hours that is 12 mins saved. multiply that by a week that is over an hour saved multiply that by 52 that is 52 hours saved in a year which means the machine made up for 2 days of work.

now compare that to the results 7 seconds and slower and do the same math.

Simply put time is money/productivity for some.

miklkit · Oct 10, 2017

On the other end of the scale there is a total memory noob like me. I do notice the difference from faster ram in games and benches so did what I could to make these 4 stick faster and they are currently at 3020mhz.

HWINFO64 lets you monitor ram temps and I never saw them going over 40C and they were usually around 36C so I disabled monitoring the ram to save space. This is at 1.43 volts too. If you are worried about the ram overheating the motherboard, then you need to get a better motherboard.

chew* · Oct 10, 2017

Here is the setting that causes a lot of drama on TR.

I found that by default auto is not performance........least on my board.

I am always looking for ways to sqezze more performance from my system so when I see a performance setting I try it. At least on the Asrock I would avoid this setting for now....

mijotter · Oct 10, 2017

Greetings. I'm building a Ryzen PC. Going with the 1800x on the Crosshair Hero VI MoBo.

I've been reading that the RAM has to be Samsung B-die in order to run well with the high clocks/frequencies.

I need 32 gb of RAM so finding the right sticks that are 2x16 has been difficult.

Would these be just as effective?

https://www.newegg.com/Product/Product.aspx?Item=N82E16820232091&ignorebbr=1&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-PCPartPicker,%20LLC-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

OR should I get these for the much higher price?

https://www.newegg.com/Product/Product.aspx?Item=N82E16820232206&cm_re=f4_3200c14d_32gtz-_-20-232-206-_-Product&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-VigLink-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=6146846&SID=j8m0glxlq5000kb500053

Thanks.

ssateneth · Oct 10, 2017

Quote:

Originally Posted by chew*

Same. The heatpiped sink warms up that last dimm.

Pass 4x16g DR ( 2000 % coverage ) in memtest @3200 with DR @ 1.36 vdimm in bios 1.050 SOC .88vddp

Vcore was jacked up to produce heat since memtest does not get it warm enough at normal vcore imo.. I do not trust results on AMD without getting cpu warm......

Took over 24 hours to run this but I don't mind the system is being tuned for 24/7 abuse as a VM.
So much for memtest is the easier way.....I prefer prime my 2c

Over the last couple days, I've been running HCI to weed out RAM things. Started at my 'fast' settings. Picked up some regular errors, ok, I expected that (1 here, 2 there, but they are steady). Go to AUTO on primary timings, errors are much less frequent now, but now they appear in sets of 8. At this point, I brought down CPU clock speed, and brought RAM secondary, and finally tertiary timings all to AUTO, brought RAM voltage down to 1.35 aaaaaaand... nada. I think my IMC is crap. I sitll pick up infrequent sets of 8 errors and last few times the PC has rebooted (MEMORY_MANAGEMENT, SYSTEM_SERVICE_EXCEPTION, PAGE_FAULT_IN_NONPAGED_AREA, DRIVER_IRQL_NOT_LESS_OR_EQUAL). This reminds me of my intel board when I was pushing the cache speed too much.

Is your VDDP the CLDO_VDDP setting or an actual setting called VDDP? If the latter, my board doesn't have that. Also what procodt and CAD ohm settings are you using?

chew* · Oct 11, 2017

Quote:

Originally Posted by ssateneth

Over the last couple days, I've been running HCI to weed out RAM things. Started at my 'fast' settings. Picked up some regular errors, ok, I expected that (1 here, 2 there, but they are steady). Go to AUTO on primary timings, errors are much less frequent now, but now they appear in sets of 8. At this point, I brought down CPU clock speed, and brought RAM secondary, and finally tertiary timings all to AUTO, brought RAM voltage down to 1.35 aaaaaaand... nada. I think my IMC is crap. I sitll pick up infrequent sets of 8 errors and last few times the PC has rebooted (MEMORY_MANAGEMENT, SYSTEM_SERVICE_EXCEPTION, PAGE_FAULT_IN_NONPAGED_AREA, DRIVER_IRQL_NOT_LESS_OR_EQUAL). This reminds me of my intel board when I was pushing the cache speed too much.

Is your VDDP the CLDO_VDDP setting or an actual setting called VDDP? If the latter, my board doesn't have that. Also what procodt and CAD ohm settings are you using?

vddcr_soc_s5 formerly known as vddp not to be confused with cldo_vddp ( probably why they changed the name )

I have not needed to screw with ODT or cad bus with this particular cpu. it just works and pushing for 3333 is most likely going to be a stretch with DR and will require way way more tinkering than the person that is eventually going to use this machine is going to care to do.

As it is it is getting another 64 gb added and that is going to be drama by itself for which I have created profiles ranging from 2666-3066 for.

Esenel · Oct 11, 2017

Esenel--1700X@3.95---3466Mhz-C15-15-15-35-1T---1.4v---SOC 1.1v---BIOS 9920---HCI---400%---F4-3200C14-16GTZ

ssateneth · Oct 12, 2017

Quote:

Originally Posted by chew*

vddcr_soc_s5 formerly known as vddp not to be confused with cldo_vddp ( probably why they changed the name )

I have not needed to screw with ODT or cad bus with this particular cpu. it just works and pushing for 3333 is most likely going to be a stretch with DR and will require way way more tinkering than the person that is eventually going to use this machine is going to care to do.

As it is it is getting another 64 gb added and that is going to be drama by itself for which I have created profiles ranging from 2666-3066 for.

Yeah the MSI board does not have that voltage setting. Would it be your opinion that lacking that setting is likely the cause for lack of stability above 2933MHz (4x16GiB DR sam b-die), regardless of RAM timings/settings? Only has Core, SOC, "CPU 1P8" which seems to be PLL (default 1.8v), DDR4 (main, vpp, and vref), and PROM core and phy (which I assume is the promontory PCH core and phy)

chew* · Oct 12, 2017

Probably cpu with 4x16. Board/bios optimizations can help but only so much..

Probably going to need to dig in and fine tune it. Took me about 2 weeks.

chroniclard · Oct 12, 2017

Couple of questions.

Currently have 3333 running with the stilts fast 3200 settings 14-13-13-13-28 at 1T

Cant seem to get any better at 1T, though this isn't bad at all.

1. Is running at 2T "easier"?
2. Is there any performance loss at 2T?
3. Think 3466 @ 2T would be any better, given the timings would probably be looser?

cheers

Laur3nTyu · Oct 12, 2017

I'm having a hard time convincing myself to run the RAM higher than its rated voltage 1.35V.

ATM i'm running 3200CL14 (My ram is 3600 g.skill CL 16) @ 1.4v.

Is the ram gonna die on me or is it safe to run it at 1.4v? I haven't found any info about it that convinced me and I decided to ask you guys..

What are your thoughts?

ssateneth · Oct 12, 2017

Quote:

Originally Posted by Laur3nTyu

I'm having a hard time convincing myself to run the RAM higher than its rated voltage 1.35V.

ATM i'm running 3200CL14 (My ram is 3600 g.skill CL 16) @ 1.4v.

Is the ram gonna die on me or is it safe to run it at 1.4v? I haven't found any info about it that convinced me and I decided to ask you guys..

What are your thoughts?

XMP profiles are allowed to program voltage in as high as 1.5v, which is only 25% higher than the default 1.2v. It's safe.

ssateneth · Oct 12, 2017

Quote:

Originally Posted by chew*

Probably cpu with 4x16. Board/bios optimizations can help but only so much..

Probably going to need to dig in and fine tune it. Took me about 2 weeks.

Meh. I find it hard to believe it's the CPU. Was purchased from silicon lottery, top tier bin. In any case, it comes down to begging MSI to add the voltage, or to spend money and get a different board or different (and less) ram

chew* · Oct 12, 2017

Quote:

Originally Posted by ssateneth

Meh. I find it hard to believe it's the CPU. Was purchased from silicon lottery, top tier bin. In any case, it comes down to begging MSI to add the voltage, or to spend money and get a different board or different (and less) ram

Um silicon lottery explicitly states they do not bin imc. Just core clock with memory @ defaults.

nexxusty · Oct 13, 2017

Quote:

Originally Posted by Laur3nTyu

I'm having a hard time convincing myself to run the RAM higher than its rated voltage 1.35V.

ATM i'm running 3200CL14 (My ram is 3600 g.skill CL 16) @ 1.4v.

Is the ram gonna die on me or is it safe to run it at 1.4v? I haven't found any info about it that convinced me and I decided to ask you guys..

What are your thoughts?

I understand you are scared running higher than 1.35v will damage your RAM. This is an unwarranted fear however.

As the gentleman right after your post said.... XMP profiles can use up 1.5v VDIMM. Keep your RAM below 45c and you can use up to 1.5v no problem. Honestly, even 1.65v with active cooling is fine for Samsung B-Die IC's. Again, keeping your RAM under 45c is crucial.

Something called "Wandering Bits" happens above that temperature. I always give myself 5c from that figure, so I don't let my RAM go above 40c. I actively cool my kit so it doesn't ever go over 36c. This has been a boon to me as Ripjaws IC's are not as good as Trident Z IC's. At least mine aren't.... Every timing/voltage set you see for Samsung B-Die is done with Trident Z usually.

While I can always do these timings stably, however I always require 1.43v VDIMM where as most of these timing/voltage set's are done with 1.4v. My SoC is in the same 1.1v range. No issues there.

I too have a set of G.Skill 3600mhz CL16, these are THE best kits to get with Ryzen. Period.

Trident Z or Ripjaws V, it doesn't matter. The Ripjaws just require a liiiitle more voltage to stabilize it seems. Honestly, I would just save the cash and go with a set of Ripjaws V 10 out of 10 times in this situation. Unless, maybe you bench with Intel as well. I bet the Trident Z will scale a bit better on Intel in terms of voltage to frequency.

Out of curiosity, which set do you have? Same as I, or the Trident Z variation?

Laur3nTyu · Oct 13, 2017

Quote:

Originally Posted by nexxusty

I understand you are scared running higher than 1.35v will damage your RAM. This is an unwarranted fear however.

As the gentleman right after your post said.... XMP profiles can use up 1.5v VDIMM. Keep your RAM below 45c and you can use up to 1.5v no problem. Honestly, even 1.65v with active cooling is fine for Samsung B-Die IC's. Again, keeping your RAM under 45c is crucial.

Something called "Wandering Bits" happens above that temperature. I always give myself 5c from that figure, so I don't let my RAM go above 40c. I actively cool my kit so it doesn't ever go over 36c. This has been a boon to me as Ripjaws IC's are not as good as Trident Z IC's. At least mine aren't.... Every timing/voltage set you see for Samsung B-Die is done with Trident Z usually.

While I can always do these timings stably, however I always require 1.43v VDIMM where as most of these timing/voltage set's are done with 1.4v. My SoC is in the same 1.1v range. No issues there.

I too have a set of G.Skill 3600mhz CL16, these are THE best kits to get with Ryzen. Period.

Trident Z or Ripjaws V, it doesn't matter. The Ripjaws just require a liiiitle more voltage to stabilize it seems. Honestly, I would just save the cash and go with a set of Ripjaws V 10 out of 10 times in this situation. Unless, maybe you bench with Intel as well. I bet the Trident Z will scale a bit better on Intel in terms of voltage to frequency.

Out of curiosity, which set do you have? Same as I, or the Trident Z variation?

I am using the G.skill Trident Z grey/red color (F4-3600C16D-16GTZ) .

Currently using it under ryzen 1600x / c6h combo @ 3466 @ 1.4v with the Stilts's preset. I checked for stability and it's stable (400% HCI). I'm happy I managed to get it higher than 3200 thought I cannot see a real difference but it's more like a psihical comfort

Darkstalker420 · Oct 13, 2017

Sorry if this is off topic somewhat. But this thread is named exactly what i don't have (Memory Stability)! and you people seem to know your stuff so i'm wondering if you could give us a few pointers. I have the rig in my sig running a not very stable 3200Mhz DRAM @ 39,19,19,19 C18 1T 1.35v using the D.O.C.P profile. My sticks are "B"Die Corsair CMK16GX4M2B3600C18 Vengeance LPX 16 GB (2 x 8 GB). They are in the MoBo's QVL rated for 3200Mhz operation via the D.O.C.P setting The thing is if i run them as they are set i get BSOD's watching YouTube vids!! But can game for hours and the rig is just "flaky" imho.

My last rig was a PhII X6 so this way out of my league for messing in the BIOS.

IBT will fail at V HIGH preset on the second pass and AIDA64 will run for about 9:00 then errors out. I found raising the SoC V's to 1.160v's stopped the YouTube BSOD's. I have gone upto 1.200v's for the SoC and this didn't help also upto 1.46v's for DRAM and this didn't help much either. I can't seem to tighten the timings at all (36.16,16,16 will just crash stress test programs faster!).

3333Mhz will get into windows but crash when stressing in seconds. 3466Mhz will BSOD on loading Windows 10. This is with the high SoC and DRAM v's posted above. I have worked my way up of course not just "hit the high v's". I'm not clocking the CPU i would just like to get 3466 C16/14 or even a 100% stable 3200Mhz with "tight" timings and i will be happy but as mentioned the Strix's BIOS is like a foreign language. I have tried a few guides but find the settings are not called what the are in MY BIOS as lots of the guides use the C6H and they obviously are different. So i'm leary of just whacking the numbers in and hoping that its the right setting.

Any assistance would be very much appreciated as i'm out of my depth really but want MOAR MHZ!!

Even a link to a good guide showing me what to "tweak" that isn't just C6H this C6H that would be great tbh. But anything would be good. I should say all is on AUTO/DEFAULT bar the SoC and the DRAM which D.O.C.P sets to 1.35v. Thanks people.

Thanx.

Silent Scone · Oct 14, 2017

Quote:

Originally Posted by chew*

Twcl should be equal to or 1 less than CL. Ryzen appears not to like odd twcl.

Of course you can break this rule but stability means nothing if performance is lost.

Tfaw rule is trrds multiplied by 4+0-8.
Your at 12 when minimum should be 16.

Many seem to focus solely on stability and speed but seldom focus on how it impacts performance.

Aida means very little realworld wise tbh.

My system does not BSOD FYI. I can't imagine why

Can't imagine, or don't honestly know why?

[Official] AMD Ryzen DDR4 24/7 Memory Stability Thread

happyluckbox

poah

chew*

miklkit

chew*

mijotter

ssateneth

chew*

Esenel

ssateneth

chew*

chroniclard

Laur3nTyu

ssateneth

ssateneth

chew*

nexxusty

Laur3nTyu

Darkstalker420

Silent Scone

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