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Author Topic: AMD Ryzen memory support  (Read 71459 times)

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dylangutt1

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« Reply #100 on: 12-April-17, 17:51:16 »

Well, another memory post. I have the Corsair CMK16GX4M2A2666C16 Kit (2 x 8 GB @ 2666 MHz) with the MSI Tomahawk B350. I've of course ran into the issue of speeds stuck at 2133.
Technically, I should have to overclock to get the desired speeds right, since the board only supports 2666 (OC)?
 I should be able to set the timings/voltage manually (the one's listed on the corsair site for this specific kit), right? The timings are 16-18-18-18-35 @ 1.2V. So, I went ahead and updated to 1.3 BIOS that has the new AGESA code.

I went ahead and set the frequency to 2400 MHz @ 1.2V with those timings, and it seemed to boot up fine. For some reason the timings default to 15-18-18-18-36., so I changed them manually to the ones above.
I was able to boot up successfully, and made sure by restarting multiple times with no beeps.
As soon as I set the frequency to 2666 MHz though, the POST fails and the RAM reverts to 2133 MHz. It seems a lot (more than before) of people have been able to get their memory up to 2933 or so. (I know I won't because my RAM is rated at 2666 but you get what I'm saying).
I've tried 1.35V with 16-18-18-18-36, 16-18-18-18-35, 15-18-18-18-35, no luck.
I've also tried the memory try it profiles for 2666, all to no avail.
Also tried bumping up my FSB voltage a little bit as well, and tried using the XMP profile. (I think it's called FSB, I'm not in front of my computer right now).
I know the answer is going to be that MSI/AMD are having memory issues and that they will be resolved in BIOS updates to come hopefully, but if anyone has any other insight, please fill me in.

Thanks!
« Last Edit: 13-April-17, 01:33:21 by dylangutt1 »
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kagetora34

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« Reply #101 on: 12-April-17, 18:53:12 »

Well, another memory post. I have the Corsair CMK16GX4M2A2666C16 Kit (2 x 8 GB @ 2666 MHz) with the MSI Tomahawk B350. I've of course ran into the issue of speeds stuck at 2133.
Technically, I should have to overclock to get the desired speeds right, since the board only supports 2666 (OC)?
 I should be able to set the timings/voltage manually (the one's listed on the corsair site for this specific kit), right? The timings are 16-18-18-18-35 @ 1.2V. So, I went ahead and updated to 1.3 BIOS that has the new AGESA code.

I went ahead and set the frequency to 2400 MHz @ 1.2V with those timings, and it seemed to boot up fine. For some reason the timings default to 15-18-18-18-36., so I changed them manually to the ones above.
I was able to boot up successfully, and made sure by restarting multiple times with no beeps.
As soon as I set the frequency to 2666 MHz though, the POST fails and the RAM reverts to 2133 MHz. It seems a lot (more than before) of people have been able to get their memory up to 2933 or so. (I know I won't because my RAM is rated at 2666 but you get what I'm saying).
I've tried 1.35V with 16-18-18-18-36, 16-18-18-18-35, 15-18-18-18-35, no luck.
I've also tried the memory try it profiles for 2666, all to no avail.
Also tried bumping up my FSB voltage a little bit as well, and tried using the XMP profile. (I think it's called FSB, I'm not in front of my computer right now).
I know the answer is going to be that MSI/AMD are having memory issues and that they will be resolved in BIOS updates to come hopefully, but if anyone has any other insight, please fill me in.

Thanks!
In theory, yes. I don't own that board nor do I own that memory so I can't test it myself but in theory you should be able to manually push that memory up to the printed speed of 2666 by manually entering the timing and MHz in the BIOS.
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biri.ambulans.cagirsin

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« Reply #102 on: 12-April-17, 22:32:51 »

I don't know if it is the right place for asking but no one can help me but you guys. (I'm from Turkey and couldn't find anyone to help me to reach best BIOS settings with my build)

I have;
X370 Gaming Pro Carbon
Ryzen 1700x
Corsair Vengeance LPX CMK16GX4M2B3200C16R 2x8GB
Samsung 850 EVO 250GB
Zotac GTX 760 Amp! 2GB 256Bit (Going to get GTX 1080 Gaming X or Armor)

My rams are on the memory support QVL. List says that i can run those @3200Mhz with default timings.
But it doesnt post when i set those to 3200Mhz with 16-18-18-36 (Tried both A-XMP on and off)
Currently they are running on 2667Mhz with 14-15-15-30 timings. (The guy in the store helped me to set this)

What can i do to get this build on the top performance before the bios version 1.30?

I attached my OC settings on BIOS. Which changes do you recommend?

OC Mode(Expert)
Game Boost(On)
SMT(Enabled)
Core 6 State(Auto)
SVM Mode (Disabled)

PS: Mouse cursor is stuttering in BIOS and when i alt+tab from a game. Is it normal? On FX-8320 this never happened.
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darkhawk

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« Reply #103 on: 12-April-17, 22:41:30 »

I don't know if it is the right place for asking but no one can help me but you guys. (I'm from Turkey and couldn't find anyone to help me to reach best BIOS settings with my build)

I have;
X370 Gaming Pro Carbon
Ryzen 1700x
Corsair Vengeance LPX CMK16GX4M2B3200C16R 2x8GB
Samsung 850 EVO 250GB
Zotac GTX 760 Amp! 2GB 256Bit (Going to get GTX 1080 Gaming X or Armor)

My rams are on the memory support QVL. List says that i can run those @3200Mhz with default timings.
But it doesnt post when i set those to 3200Mhz with 16-18-18-36 (Tried both A-XMP on and off)
Currently they are running on 2667Mhz with 14-15-15-30 timings. (The guy in the store helped me to set this)

What can i do to get this build on the top performance before the bios version 1.30?

I attached my OC settings on BIOS. Which changes do you recommend?

OC Mode(Expert)
Game Boost(On)
SMT(Enabled)
Core 6 State(Auto)
SVM Mode (Disabled)

PS: Mouse cursor is stuttering in BIOS and when i alt+tab from a game. Is it normal? On FX-8320 this never happened.

Honestly, the best you can do is increase the NB voltage slightly.
And possibly the memory voltage, slightly.
Outside of that, probably not very much.

I saw an interesting reddit post regarding Ryzen and a user who switched CPU's, same system/MB/RAM/etc, but different CPU, and went from being able to only run 2667 to 3200 no problem.
I would say that there is definitely some concern regarding the quality of the IMC within the CPU, and it would definitely play a huge part in why some users can get 3200 no problem, while others with nearly identical systems can't get more than 2400 MHz.

https://www.reddit.com/r/Amd/comments/64y5ko/struggling_to_hit_3200_on_your_ryzen_with_qvl_ram/

Just some food for thought.
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biri.ambulans.cagirsin

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« Reply #104 on: 12-April-17, 23:25:02 »

What do you mean with "slightly"? 2 clicks on "+" will be enough? :)
Pushing DRAM Voltage further than 1.370 isn't a problem?

About that post, i know it is a silicon lottery but i thought picking X370 mobo and 1700"X" was a better choice for OC'ing than B350 Mobo & 1700.
Appearently i just spent extra 200$ for nothing. It is sad :(
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darkhawk

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« Reply #105 on: 12-April-17, 23:34:13 »

What do you mean with "slightly"? 2 clicks on "+" will be enough? :)
Pushing DRAM Voltage further than 1.370 isn't a problem?

About that post, i know it is a silicon lottery but i thought picking X370 mobo and 1700"X" was a better choice for OC'ing than B350 Mobo & 1700.
Appearently i just spent extra 200$ for nothing. It is sad :(

Taken from some overclocking site online....

Ambient RecommendedAmbient MaxLN2 RecommendedLN2 Max
CPU Core Voltage1.40up to 1.451.80up to 1.95
SOC Voltage1.15up to 1.301.20up to 1.40
DRAM Voltage1.40up to 1.901.80up to 1.90
1.8V PLL Voltage1.80up to 2.403.00up to 3.20
1.05V SB Voltage1.05up to 1.401.30up to 1.40
1.8V Standby Voltage1.80up to 2.102.10up to 2.30
2.5V SB Voltage2.50up to 2.802.70up to 2.80

Obviously take this with a grain of salt, but it's a good starting point.
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biri.ambulans.cagirsin

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« Reply #106 on: 13-April-17, 02:03:49 »

Thanks for the info. :biggthumbsup:
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RemusMTopic starter

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« Reply #107 on: 13-April-17, 10:58:59 »

I would say that there is definitely some concern regarding the quality of the IMC within the CPU,
and it would definitely play a huge part in why some users can get 3200 no problem,
while others with nearly identical systems can't get more than 2400 MHz.

More than true.
As stated in the first message of this topic, anything above 2666 is gambling and the results depend on the CPU quality (your luck).
The future BIOS updates might improve the compatibility in some cases.
But don't expect any miracle !
:beerchug:
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note: NO overclocking!

badboy2k

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« Reply #108 on: 13-April-17, 11:35:52 »

Intel have the higher degree of experience with making much more advanced IMC's that can handle higher speeds more easy as AMD have been playing catchup for many years so its no surprise that Rizen is not as good and has alot of issues.

maybe as they refine the design in later chips they may get better but i hold very little hope.
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darrenoleary88

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« Reply #109 on: 13-April-17, 12:43:02 »

For anyone interested, my Corsair RAM (SK Hynix, Single Rank) is running at 3200Mhz with a simple click on AXMP profile 2.

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rindman

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« Reply #110 on: 13-April-17, 13:42:30 »

For anyone interested, my Corsair RAM (SK Hynix, Single Rank) is running at 3200Mhz with a simple click on AXMP profile 2.


Lucky one, I have the same memory kit but it won't boot on my X370 Gaming Pro Carbon T_T Hope the next 1.3 bios will resolve this ... I wonder if the support team mistook my ticket's mb with the b350 series instead of the x370 ...
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akay.gulmersin

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« Reply #111 on: 13-April-17, 13:46:56 »

What is the motherboard model. What is the bios version
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Nichrome

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« Reply #112 on: 13-April-17, 14:03:27 »

What is the motherboard model. What is the bios version
Clearly says on the screenshots. B350 Tomahawk, BIOS V1.30
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akay.gulmersin

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« Reply #113 on: 13-April-17, 14:08:33 »

DDR4 Ram is running at 2133 Mhz speed. You may be seeing it as 3200
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darrenoleary88

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« Reply #114 on: 13-April-17, 14:17:41 »

DDR4 Ram is running at 2133 Mhz speed. You may be seeing it as 3200

No, it clearly states 1600.2Mhz, you are reading the native supported speed. Please see below for more proof:





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akay.gulmersin

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« Reply #115 on: 13-April-17, 14:27:33 »

CPZU program shows DDR4-2132 (1066Mhz)
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akay.gulmersin

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« Reply #116 on: 13-April-17, 14:30:11 »

For anyone interested, my Corsair RAM (SK Hynix, Single Rank) is running at 3200Mhz with a simple click on AXMP profile 2.


CPZU program shows DDR4-2132 (1066Mhz)
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darrenoleary88

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« Reply #117 on: 13-April-17, 14:32:25 »

CPZU program shows DDR4-2132 (1066Mhz)

Yes, that is the 'native' supported frequency. That is not the frequency it is running at. Look at the CPUz memory tab timings, that is real time stating 1600Mhz, as does all other programs. Latency is showing it also.


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akay.gulmersin

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« Reply #118 on: 13-April-17, 14:38:56 »

Yes, that is the 'native' supported frequency. That is not the frequency it is running at. Look at the CPUz memory tab timings, that is real time stating 1600Mhz, as does all other programs. Latency is showing it also.

You can share your overclocking settings. Motherboard model and bios version.
We can not reach Corsair CMK16GX4M2B3000C15 Memory 2933 Mhz.
(I am = X370 Gaming Titanium motherboard and bios version 1.3)
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darrenoleary88

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« Reply #119 on: 13-April-17, 14:45:33 »

You can share your overclocking settings. Motherboard model and bios version.
We can not reach Corsair CMK16GX4M2B3000C15 Memory 2933 Mhz.
(I am = X370 Gaming Titanium motherboard and bios version 1.3)

You are running CMK16GX4M2B3000C15 which is not on the 'supported list' https://www.msi.com/Motherboard/support/B350-TOMAHAWK.html#support-cpu

However, my actions was as follows:

1. Updated to bios 1.3
2. Reset bios to default values
3. Plugged 3700 into CPU frequency
4. Check AXMP 2 (3200Mhz)
5. Save and restart.

This is all, everything else is on auto. My CPU only needs 1.17v to run all cores at 3.7Ghz and the stock volts top at 1.20 so I just leave it on auto.

The pictures above show the hardware, bios V and frequency's set.

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darkhawk

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« Reply #120 on: 13-April-17, 15:51:30 »

You can share your overclocking settings. Motherboard model and bios version.
We can not reach Corsair CMK16GX4M2B3000C15 Memory 2933 Mhz.
(I am = X370 Gaming Titanium motherboard and bios version 1.3)

The X370 boards haven't gotten an updated BIOS yet....so don't expect the same results as the Tomahawk which has gotten an update.
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mr.raider2

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« Reply #121 on: 13-April-17, 22:35:14 »

Well, another memory post. I have the Corsair CMK16GX4M2A2666C16 Kit (2 x 8 GB @ 2666 MHz) with the MSI Tomahawk B350. I've of course ran into the issue of speeds stuck at 2133.
Technically, I should have to overclock to get the desired speeds right, since the board only supports 2666 (OC)?
 I should be able to set the timings/voltage manually (the one's listed on the corsair site for this specific kit), right? The timings are 16-18-18-18-35 @ 1.2V. So, I went ahead and updated to 1.3 BIOS that has the new AGESA code.

I went ahead and set the frequency to 2400 MHz @ 1.2V with those timings, and it seemed to boot up fine. For some reason the timings default to 15-18-18-18-36., so I changed them manually to the ones above.
I was able to boot up successfully, and made sure by restarting multiple times with no beeps.
As soon as I set the frequency to 2666 MHz though, the POST fails and the RAM reverts to 2133 MHz. It seems a lot (more than before) of people have been able to get their memory up to 2933 or so. (I know I won't because my RAM is rated at 2666 but you get what I'm saying).
I've tried 1.35V with 16-18-18-18-36, 16-18-18-18-35, 15-18-18-18-35, no luck.
I've also tried the memory try it profiles for 2666, all to no avail.
Also tried bumping up my FSB voltage a little bit as well, and tried using the XMP profile. (I think it's called FSB, I'm not in front of my computer right now).
I know the answer is going to be that MSI/AMD are having memory issues and that they will be resolved in BIOS updates to come hopefully, but if anyone has any other insight, please fill me in.

Thanks!
I have the RAM kit and mobo. BIOS 1.3 adds A-xmp profiles 1 and 2. Profile 1 works flawless at 2400Mhz, and I ran folding@home 24 hours rock solid. Profile 2 won't boot. Corsair lists this kit as AM4 approved on their site, and newegg reviews says some ryzen users got advertised speeds.

Di you try loosening timings a bit more? Try CAS 18?
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foschefski

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« Reply #122 on: 14-April-17, 07:31:01 »

Here's my RAM situation.

     I started my build with the Gaming Pro Carbon, Ryzen 1700 and Corsair Vengeance LED (CMU16GX4M2C3200C16B).  I could NOT get the RAM to go past 2400mhz with 1.2 BIOS.  So I returned the RAM and bought the Geil Evo X (GEX416GB3200C16DC) since I heard people had some success with it.  I managed to get this RAM running at 2933mhz with manual timings (16-18-18-18-36).  I also found AMP profile 1 will run this RAM at 2933 but with looser timings.  When I pushed for 3200mhz the system would not boot, even with ultra loose timings.  So for now it looks like 3200 is not yet attainable with Geil.
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foschefski

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« Reply #123 on: 14-April-17, 07:41:18 »

Progress!

    The Geil RAM hit 3200mhz using AMP profile 2.   In the BIOS I reset everything to default and switched back to EZ mode.  I turned on AMP Profile 2 and the system booted with no problems.  No idea how it did that, since I used those timings manually before and got the mobo beeps at boot.
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rindman

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« Reply #124 on: 14-April-17, 11:09:13 »

With my X370 Gaming Pro Carbon ( bios 1.3 ) and Corsair Vengeance LPX 3200 mhz 16Gb BLACK ( CMK16GX4M2B3200C16 - Sk Hynix Single Rank )

I managed to boot once at 3200 mhz without trouble ( the system was power on, power off several times before loading Windows )

Now it's boot fast and stable at 3000 mhz.

The tmings was close to foschefski's effective timings.
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darkhawk

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« Reply #125 on: 14-April-17, 11:17:44 »

All I can say is that you need to remember that these timings are overclocking a part of the chip, specifically the IMC. Anything higher than what is listed in the first post, is higher than what AMD guarantee's for the chip, and therefore an overclock, and also therefore not guaranteed to work on every chip.
The memory might be capable of 3600 MHz, the motherboard is as well, but if the CPU's IMC can't handle it, there really isn't much to be done about it.
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dylangutt1

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« Reply #126 on: 14-April-17, 12:50:41 »

I seem to be having the worst luck with my Corsair Vengeance (2x8GB) CMK16GX4M2A2666C16 kit.
I can't get stable performance above 2133. I've tried multiple timings but when I set XMP or manual timings / voltage, Prime95 or gaming is instable. Black screens both of my monitors and I have to hard shut and set the RAM back.
I have the B350 Tomahawk running 1.3 version of the bios which apparently has AGESA 1.0.0.4a on it.
The timings for the card are listed as 16-18-18-18-35.
MemTest86 came back fine though when I had it clocked at 2666 though, so the RAM had no errors at least. I'm surprised it didn't black screen then....
It seems like I'm just going to have to wait for the big AMD ram update in May, or wait for more beta BIOS updates for the Tomahawk.
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mr.raider2

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« Reply #127 on: 14-April-17, 15:05:55 »

I seem to be having the worst luck with my Corsair Vengeance (2x8GB) CMK16GX4M2A2666C16 kit.
I can't get stable performance above 2133. I've tried multiple timings but when I set XMP or manual timings / voltage, Prime95 or gaming is instable. Black screens both of my monitors and I have to hard shut and set the RAM back.
I have the B350 Tomahawk running 1.3 version of the bios which apparently has AGESA 1.0.0.4a on it.
The timings for the card are listed as 16-18-18-18-35.
MemTest86 came back fine though when I had it clocked at 2666 though, so the RAM had no errors at least. I'm surprised it didn't black screen then....
It seems like I'm just going to have to wait for the big AMD ram update in May, or wait for more beta BIOS updates for the Tomahawk.
 Use a-xmp profile 1 and let it run at 2400 for a few days. Make sure it's stable. I can boot at 2666 18-20-20-20-40, but it's unstable. I haven't put more than 1.2v yet, since this kit isn't rated 1.35v
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foschefski

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« Reply #128 on: 14-April-17, 16:38:23 »

Progress!

    The Geil RAM hit 3200mhz using AMP profile 2.   In the BIOS I reset everything to default and switched back to EZ mode.  I turned on AMP Profile 2 and the system booted with no problems.  No idea how it did that, since I used those timings manually before and got the mobo beeps at boot.
Well that didn't last long.  I booted up this morning and I got the beeps of annoyance from the mobo.  I didn't change any settings since the successful boot last night.  I am baffled.
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darkhawk

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« Reply #129 on: 14-April-17, 16:50:20 »

About the only thing I might suggest is trying to clean all the gold contacts on your memory.
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gabrielpin70

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« Reply #130 on: 14-April-17, 20:32:25 »

What timings can i try to get past 2667 with my ballistix elite 3200 cl16 (MICRON), so far can only get to 2667 using axmp-1.
none of the try-it past 2667 worked.
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papasteack

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« Reply #131 on: 14-April-17, 22:32:34 »

Herre ddr4 adata z1 3333 needed ~1,38v here to get 3200 cl14-14-14-16-36 STABLE memtest on tomahawk/r5 1600, vs cl18 only (not even cl16) with 1,35v. So give it a try... tRP always higher value needed for me, don't know why.
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gabrielpin70

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« Reply #132 on: 14-April-17, 23:17:15 »

what is that you overvolted?
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gabrielpin70

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« Reply #133 on: 16-April-17, 15:40:10 »

Herre ddr4 adata z1 3333 needed ~1,38v here to get 3200 cl14-14-14-16-36 STABLE memtest on tomahawk/r5 1600, vs cl18 only (not even cl16) with 1,35v. So give it a try... tRP always higher value needed for me, don't know why.

Ok, so i noticed the only way to get to 2667 was with the DRAM Voltage at 1.36 already and a-xmp1, if i try to set that to auto (1.2) it won't boot even at 2667, i tried then setting it to 1.37, bumping to 2993, and settings timings to 16-18-18-18-36, 17-19-19-19-37, and no luck with either of those, a-xmp1 and a-xmp2 aswell. My memories are Ballistix elite, with Micron chipset, 3200mhz cl16
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scorpio

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« Reply #134 on: 16-April-17, 18:55:59 »

Ok, so i noticed the only way to get to 2667 was with the DRAM Voltage at 1.36 already and a-xmp1, if i try to set that to auto (1.2) it won't boot even at 2667, i tried then setting it to 1.37, bumping to 2993, and settings timings to 16-18-18-18-36, 17-19-19-19-37, and no luck with either of those, a-xmp1 and a-xmp2 aswell. My memories are Ballistix elite, with Micron chipset, 3200mhz cl16
A lot of memory sticks are certified for a command rate 2T this is a big problem on ryzen motherboards, bios can't translate XMP spec into 2T command rate for the moment.
If you are lucky your sticks work fine and you gain Silicon lottery, else you need to decresase RAM timings or run in low frequency.
https://forum-en.msi.com/index.php?topic=284863.0
« Last Edit: 17-April-17, 02:51:03 by scorpio »
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gabrielpin70

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« Reply #135 on: 16-April-17, 20:17:14 »

A lot of memory sticks are certified for a command rate 2T this is a big problem on ryzen motherboards, bios can't translate XMP spec into 2T command rate for the moment.
If you are lucky your sticks work fine and you gain Silicon lottery, else you need to decresase RAM timings or run in low frequency.
https://forum-en.msi.com/index.php?topic=284863.0

Is there still ANY chance a new BIOS update might fix this? and what timings could i try?
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« Reply #136 on: 16-April-17, 21:32:23 »

Is there still ANY chance a new BIOS update might fix this? and what timings could i try?
There will be many more BIOS updates. But when, and which one will make it work for you, no idea.
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« Reply #137 on: 16-April-17, 21:52:05 »

A lot of memory sticks are certified for a command rate 2T this is a big problem on ryzen motherboards, bios can't translate XMP spec into 2T command rate for the moment.
If you are lucky your sticks work fine and you gain Silicon lottery, else you need to decresase RAM timings or run in low frequency.
https://forum-en.msi.com/index.php?topic=284863.0

And by the way, my memory kit command rate is 1T
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scorpio

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« Reply #138 on: 16-April-17, 22:22:49 »

Is there still ANY chance a new BIOS update might fix this? and what timings could i try?
See my posts at the end of topic https://forum-en.msi.com/index.php?topic=284863.0 :


Quote
My https://www.gskill.com/en/product/f4-2400c15d-16gvr#tabs-spec was specified to 2400 cas 15 for 15-15-15-35 in 2T at 1.2V
Run well in 2133 with this timings and boot is quickly (3-4s), if I want to run in 2400 mode I need to try other timings and increase voltage to 1.35V, and can perhaps damage my sticks ...

Edit : I tried FLARE X F4-2400C15D-16GFX timings on my F4-2400C15D-16GVR it 's seems to work well now at 2400 (15-15-15-35 to 15-15-15-39).

Quote
I just compare G.Skill F4-2400C15D-16GVR timings to new FLARE X F4-2400C15D-16GFX
I think is perhaps the same chips but only XMP profile was just adapted for Ryzen?

https://www.gskill.com/en/product/f4-2400c15d-16gvr
https://www.gskill.com/en/product/f4-2400c15d-16gfx

F4-2400C15D-16GVR = 2400 15-15-15-35-2N
F4-2400C15D-16GFX = 2400 15-15-15-39  command rate not specified ! (1T ?)

For me it run well now with flare x timings.

I forgot to change RAM voltage to 1.2V, but is stable has 1.21V.

FYI I remember in they old beta or stable BIOS  when I want to apply A-XMP profile it set RAM timings to @2400 15-15-15-15-36 or 15-15-15-15-37 on profile 2, sometimes booting but system was very unstable or cold boot issue, need to very increase voltage to 1.35V for run fine.
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gabrielpin70

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« Reply #139 on: 16-April-17, 22:57:43 »

See my posts at the end of topic https://forum-en.msi.com/index.php?topic=284863.0 :

But mine are already at 2667, above the 2400 you mention in the post, or am i missunderstanding something? i would like to know what timings i could try to get to 2993.
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« Reply #140 on: 17-April-17, 18:51:07 »

Ok so i've tried setting some ridiculously high timings like 25-27-27-27-45 with 1.4v yet i still couldn't get to 2933, only thing i managed to improve in fiddling is lowering the voltage to 1.35 while still getting 2667.
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« Reply #141 on: 18-April-17, 12:07:10 »

Honestly, the best you can do is increase the NB voltage slightly.
And possibly the memory voltage, slightly.
Outside of that, probably not very much.

I saw an interesting reddit post regarding Ryzen and a user who switched CPU's, same system/MB/RAM/etc, but different CPU, and went from being able to only run 2667 to 3200 no problem.
I would say that there is definitely some concern regarding the quality of the IMC within the CPU, and it would definitely play a huge part in why some users can get 3200 no problem, while others with nearly identical systems can't get more than 2400 MHz.

https://www.reddit.com/r/Amd/comments/64y5ko/struggling_to_hit_3200_on_your_ryzen_with_qvl_ram/

Just some food for thought.
I don't doubt your idea about the Ryzen IMC, but there have to be other factors as well. With 4 dimms my maximum memory speed  has also been 2400mhz even with Samsung b-die dimms. But since I downloaded the latest official bios 1.40 I can no longer boot at 2400mhz with 4 dimms. Only 2133 at best. This after slightly raising dram voltage and northbridge.. So that goes to a bios that was supposed to include improved memory compatibility. I realize the May update will have bigger improvements in memory compatibility than the Apri 1.4 bios,but this was a regression. I also am seeing higher cpu and dram voltage readings with this bios even though I have actually reduced my cpu and dram voltage. Very strange.
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darkhawk

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« Reply #142 on: 18-April-17, 17:37:58 »

I don't doubt your idea about the Ryzen IMC, but there have to be other factors as well. With 4 dimms my maximum memory speed  has also been 2400mhz even with Samsung b-die dimms. But since I downloaded the latest official bios 1.40 I can no longer boot at 2400mhz with 4 dimms. Only 2133 at best. This after slightly raising dram voltage and northbridge.. So that goes to a bios that was supposed to include improved memory compatibility. I realize the May update will have bigger improvements in memory compatibility than the Apri 1.4 bios,but this was a regression. I also am seeing higher cpu and dram voltage readings with this bios even though I have actually reduced my cpu and dram voltage. Very strange.

Can't really comment on that situation much. It does appear that whatever changed with the BIOS did have a detrimental effect on your speeds. 
That's really all I can comment on it. :/

As far as the IMC, that comment is more meant for people trying to reach 3200 MHz and more.
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« Reply #143 on: 18-April-17, 22:42:43 »

Can't really comment on that situation much. It does appear that whatever changed with the BIOS did have a detrimental effect on your speeds.
That's really all I can comment on it. :/

As far as the IMC, that comment is more meant for people trying to reach 3200 MHz and more.
I appreciate your candor and wisdom. I amonly using 2 dimms now at 3200 rather than accepting 2133mhz or 2400 mhz. Still hoping the much touted AMD fix for memory will alleviate everyones pains from being early adopters. If Ryzen had released around this time in April or early May it would have been a less crazy experience for many people. The faint of heart no doubt may have turned sour. It is always better to have a smooth launch. Somehiccups are always to be expected, just not so many and requiring vegus nerve surgery.
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« Reply #144 on: 19-April-17, 16:01:02 »

Can we get an ETA on the next BIOS? I just wanted to get to at least 2933 with my micron chipset memory kit :(
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« Reply #145 on: 19-April-17, 16:23:18 »

Can we get an ETA on the next BIOS? I just wanted to get to at least 2933 with my micron chipset memory kit :(
Please ask MSI about it: >>How to contact MSI.<<
So far we know as much as you do.
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« Reply #146 on: 19-April-17, 18:13:54 »

Trying to optimize a bit too much, got this funny result, working totally stable...but lagging a lot while gaming :
Do you see the problem ? (see memory latency...)
;D
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« Reply #147 on: 20-April-17, 07:59:26 »

The problem is the dual channel, the only way my ram and oc works without fail is to use only a stick and now works at 3200mhz and without drops or reboots ... but with only 8gb instead of 16gb
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« Reply #148 on: 21-April-17, 02:10:40 »

So I couldn't get my G.Skill Trident Z RGB 3200 16-18-18-18-38 past 2400 on my MSI X370 XPower Gaming Titanium 1.4 Official BIOS, and then I heard that DDR4 is safe 24/7 at 1.45V so I changed mine from 1.36 to 1.4 and tried 2666 and it worked! Stable and working great, previous attempts would get boot loops and reset BIOS defaults.

I'll try faster soon and update my post.
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« Reply #149 on: 21-April-17, 02:15:03 »

The problem is the dual channel, the only way my ram and oc works without fail is to use only a stick and now works at 3200mhz and without drops or reboots ... but with only 8gb instead of 16gb

Setting the Command Rate to 2T instead of 1T or higher DRAM voltage should fix that, since we cannot yet change command rate (May BIOS Update) the best you can do now is set DRAM voltage to like 1.4 or 1.45 (as long as you have heatsinked modules).
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