Memory Problems with AB350 Pro4
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=12923
Printed Date: 27 Dec 2024 at 7:59pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Memory Problems with AB350 Pro4
Posted By: AlgernonFTW
Subject: Memory Problems with AB350 Pro4
Date Posted: 19 Nov 2019 at 9:17am
Hi all, I've been unable to get my RAM (32 GB; 2 x 16 GB 3000 MHz Corsair Vengeance) to work properly on this motherboard. Looking at this [URL=https://www.asrock.com/mb/AMD/AB350%20Pro4/index.asp#Memory]memory compatibility page[/URL], it says that it supports the 3000 MHz speed of my RAM, and it says "16 GB" under Size, and 2 DIMM slots. It's unclear if that means it supports up to 16 GB per slot, or 16 GB total between the 2 slots.
I have had a few BSOD's with this RAM, but usually I have page crashes on Chrome and the occasional game crash. I ran a memory check and it said there was an error, but it would not complete or give me specifics.
Can anyone tell me A) If it is possible to adjust the channels/speeds of the RAM to make it run properly, or B) If the only solution is to get a new motherboard? If that is the case, I can list the rest of my hardware to figure out if I can get away with just upgrading the motherboard and nothing else. Not sure if bumping from 16 GB to 32 GB is worth a huge investment.
Thanks, and let me know what other info I can provide if it helps.
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Replies:
Posted By: AlgernonFTW
Date Posted: 19 Nov 2019 at 9:29am
Hyperlinking does not seem to work... just go here, and look up the Corsair compatibility:
https://www.asrock.com/mb/AMD/AB350%20Pro4/index.asp#Memory
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Posted By: Ray62
Date Posted: 19 Nov 2019 at 5:02pm
That is the size of one RAM module.
Which RAM do you have exactly?
I guess CMD64GX4M4B3000C15 or CMW64GX4M4D3000C16 for 2 x 16GB double rank.
To get the RAM stable,
- Reduce frequency to the next step down
- Or/And increase DRAM voltage a bit (but stay under 1.4V)
A good helper is the DRAM calculator and it's howtos:
https://www.youtube.com/watch?v=KOqhyVNPhaM
https://www.overclock.net/forum/13-amd-general/1640919-new-dram-calculator-ryzena-1-6-2-overclocking-dram-am4-membench-0-8-dram-bench.html
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Asrock Fatal1ty X370 Professional Gaming Offline
Under test:
MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE
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Posted By: AlgernonFTW
Date Posted: 20 Nov 2019 at 2:55am
I have this RAM: https://www.amazon.com/Corsair-32GB-3000MHz-Memory-Systems/dp/B014UYPEXE/ref=sr_1_1?keywords=32gb+vengeance+3000&qid=1574189499&sr=8-1
I will check out those links and try adjusting the frequency... when you say adjust to the next step down, do you mean I should adjust each of the numbers down by 1 in the bios on the DRAM channels? Are there any that I should not adjust?
I pulled one stick out yesterday, but I am still having crashes even with a single 16 GB stick. So it must be the voltage or timings, not the amount of RAM.
I never learned these details about RAM because I never really had issues before this all started, so thank you for your help.
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Posted By: Ray62
Date Posted: 20 Nov 2019 at 4:37am
What CPU do you use?
With what frequency the RAM is running?
How long are you using it?
Did you choose XMP profile with 3000MHz?
What i meant with a step down is XMP with 2933, 2800, 2666 etc.
and you have to check the DRAM voltage, it should be 1.35V
The next thing:
According to the amazon link, you have this RAM
CMK32GX4M2B3000C15,
which is NOT in the QVL (and i guess in no memory QVL of any AM4 Ryzen board)
This RAM is some years old and optimized for Intel X99 and 100 Series motherboards.
It will NOT run out of the box with Ryzen CPUs.
I own this RAM too, used it in 2017 with a R7 1800X, got it to run first with 2666Mhz, with some tuning and bios versions some months later with 2800/2933Mhz.
With a R7 2700X and newer bios i could run it with 3000Mhz and a bit more.
With a new 3000 Ryzen R5, R7 or R9 it maybe will be a bit easier.
This RAM is a typical candidate for the Ryzen DRAM calculator.
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Asrock Fatal1ty X370 Professional Gaming Offline
Under test:
MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE
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Posted By: AlgernonFTW
Date Posted: 20 Nov 2019 at 5:26am
Well, you're right. I mis-read that code, I thought it was the other one that ended in C15 which is on the QVL.
I have the Ryzen 5 1600x CPU. My version of the BIOS only gives the option to run at 2933 MHz as the closest option to 3000, so that's what I've been using, and it runs at 1.35V by default. I have also been unable to update my BIOS to a newer version in the hopes that it would better detect different RAM types. It won't detect any of the flash drives I've put the updates on. But that's a different story.
So, my CPU and RAM are both a few years old, I think you're saying they might play well together if I tweak a few things correctly with the DRAM calculator? I watched the video and used those tools, and ended up cranking down the numbers on my RAM by 1 each, so currently the channels are 15 17 17 35 I believe. So far, no game crashes or BSODs, but it can be pretty sporadic so we'll see.
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Posted By: Ray62
Date Posted: 20 Nov 2019 at 5:42am
Cracking down the numbers by 1? You will set an uncontrolled faster timing. Don't do such a try & error thing!
There are dependencies between these values.
Do not change them if you do not understand how the DRAM is working.
Choose XMP profile for 2800 or try 2933, but increase the DRAM voltage to 1.36...1.38V.
If you want to change the different timing settings, work with the DRAM calculator as described in the howtos.
-------------
Asrock Fatal1ty X370 Professional Gaming Offline
Under test:
MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE
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Posted By: AlgernonFTW
Date Posted: 21 Nov 2019 at 5:31am
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So, I've had it set this way for a day now, with zero problems. Do you think it's not safe, or could I continue to see if any issues arise? It is currently at 15-17-17-35-52 at 1.35V. I wasn't 100% certain on what the DRAM calculator is telling me to set the timings to - I think it's saying 14-14-14-30-44 at 1.33V.
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Posted By: Ray62
Date Posted: 21 Nov 2019 at 7:16am
15-17-17-35-52 is the standard setting 3000MHz for the primary timing with this RAM.
So if this is your result when "cracking down by 1", this is ok.
And when it is running without problems with 2933Mhz, double ok.
For further using the DRAM Calculator:
14-14-14-30-44 seems to be a litte bit too tight. Ok, i don't know for which frequency.
I remenber settings more like here:
https://www.overclock.net/forum/13-amd-general/1640919-new-dram-calculator-ryzena-1-6-2-overclocking-dram-am4-membench-0-8-dram-bench-428.html#post27927684
Did you read and export the RAM data with typhoonburner and then imported by the calculator or by R-XMP? Both is similar to use with the DC, but with the typhoonburner file you also can see the timings defined by Corsair.
These config settings must be used with this RAM:
MemoryType: Hynix AFR
Profile Version: V1
Memory Rank: 2
And first use Calculate Safe.
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Asrock Fatal1ty X370 Professional Gaming Offline
Under test:
MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE
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Posted By: Ray62
Date Posted: 21 Nov 2019 at 7:26am
I just remember a thread, where the user cx5 posted working timings with this RAM:
http://forum.asrock.com/forum_posts.asp?TID=11792&KW=CMK32GX4M2B3000C15&PID=64298&title=taichi-x470-memory-problems-corsair-veng-3000#64298
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Asrock Fatal1ty X370 Professional Gaming Offline
Under test:
MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE
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Posted By: AlgernonFTW
Date Posted: 21 Nov 2019 at 8:04am
Typhoonburner shows Samsung as the manufacturer on mine, so I was using "Samsung B-Die" as memory type on the calculator. Changing it to Hynix, I get 14-16-16-17-30 42. So, almost the same as what that person on the other thread has.
I did not export/import the info, it wasn't working for me. I copied the info over from typhoonburner manually as the video instructed.
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Posted By: Ray62
Date Posted: 21 Nov 2019 at 6:04pm
Please post a screen from the typhoon burner.
You also can report with typhoon to a text file:
Prepared by Thaiphoon Burner Super Blaster
-------------------------------------------------------------
MEMORY MODULE
-------------------------------------------------------------
Manufacturer : Corsair
Part Number : CMK32GX4M2B3000C15
Serial Number : 00000000h
JEDEC DIMM Label : 16GB 2Rx8 PC4-2133P-UB0-10
Architecture : DDR4 SDRAM UDIMM
Speed Grade : DDR4-2133P downbin
Capacity : 16 GB (16 components)
Organization : 2048M x64 (2 ranks)
Register Manufacturer : N/A
Register Model : N/A
Manufacturing Date : Undefined
Manufacturing Location : Taiwan
Revision / Raw Card : 0000h / B0 (8 layers)
-------------------------------------------------------------
DRAM COMPONENTS
-------------------------------------------------------------
Manufacturer : Hynix
Part Number : H5AN8G8NMFR-TFC
Package : Standard Monolithic 78-ball FBGA
Die Density / Count : 8 Gb M-die (25 nm) / 1 die
Composition : 1024M x8 (64M x8 x 16 banks)
Clock Frequency : 1067 MHz (0,938 ns)
Minimum Timing Delays : 15-15-15-36-50
Read Latencies Supported : 16T, 15T, 14T, 13T, 12T, 11T, 10T
Supply Voltage : 1,20 V
XMP Certified : 1499 MHz / 15-17-17-35-52 / 1,35 V
XMP Extreme : Not programmed
SPD Revision : 1.0 / January 2014
XMP Revision : 2.0 / December 2013
-------------------------------------------------------------
-------------
Asrock Fatal1ty X370 Professional Gaming Offline
Under test:
MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE
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Posted By: AlgernonFTW
Date Posted: 22 Nov 2019 at 1:24am
Prepared by Thaiphoon Burner Super Blaster
-------------------------------------------------------------
MEMORY MODULE
-------------------------------------------------------------
Manufacturer : Corsair
Series : Vengeance LPX
Part Number : CMK32GX4M2B3000C15
Serial Number : 00000000h
JEDEC DIMM Label : 16GB 2Rx8 PC4-2133P-UB0-10
Architecture : DDR4 SDRAM UDIMM
Speed Grade : DDR4-2133P downbin
Capacity : 16 GB (16 components)
Organization : 2048M x64 (2 ranks)
Register Manufacturer : N/A
Register Model : N/A
Manufacturing Date : Undefined
Manufacturing Location : Taiwan
Revision / Raw Card : 0000h / B0 (8 layers)
-------------------------------------------------------------
DRAM COMPONENTS
-------------------------------------------------------------
Manufacturer : Samsung
Part Number : K4A8G085WB-BCPB
Package : Standard Monolithic 78-ball FBGA
Die Density / Count : 8 Gb B-die (Boltzmann / 20 nm) / 1 die
Composition : 1024Mb x8 (64Mb x8 x 16 banks)
Clock Frequency : 1067 MHz (0.938 ns)
Minimum Timing Delays : 15-15-15-36-50
Read Latencies Supported : 16T, 15T, 14T, 13T, 12T, 11T, 10T...
Supply Voltage : 1.20 V
XMP Certified : 1499 MHz / 15-17-17-35-52 / 1.35 V
XMP Extreme : Not programmed
SPD Revision : 1.0 / January 2014
XMP Revision : 2.0 / December 2013
-------------------------------------------------------------
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Posted By: Ray62
Date Posted: 22 Nov 2019 at 8:14am
As you can see, we both have CMK32GX4M2B3000C15, but different RAM!
So it is not enough by telling the part number.
Obviously the Corsair factory used Samsung B-die because the Hynix chips wasn't available i think. The supported timings deposited are the same.
I suggest to also read out the data of the other RAM stick, just to be sure that both are using Samsung B-die.
If that is the case, you have luck and a good chance to get tight timings and/or higher clocks.
If not, you should use Hynix AFR in the calculator, which gives primary
14-16-16-17-30 42 for @2933
16-17-18-18-30 42 for @3200
Samsung B-die would be primary
14-14-14-14-30 44 ... for @2933 and @3200
So you can play with the Calculator or stay with the already found stable setting.
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Asrock Fatal1ty X370 Professional Gaming Offline
Under test:
MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE
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Posted By: AlgernonFTW
Date Posted: 22 Nov 2019 at 11:23am
Yeah, I think for now since things are stable, I won't mess with anything... but if anything happens, I will try adjusting to one of those other settings.
Thanks so much for all your help to this point, it's been very useful!
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