Does anyone on this forum have experience with a system with the following setup?
Motherboard: Asus ROG Crosshair Hero VII (Wifi).
CPU : Ryzen 2700x.
RAM : Corsair Vengeance RGB 3200 4x16GB
Corsair Vengeance RGB PRO 3200 4x16GB
PSU = Corsair AX1600i
Complete Build information here: https://community.amd.com/message/2904373?commentID=2904373#comment-2904373
I am consistently getting Memtest86 failures with some modules in the Corsair Vengeance RGB 3200 4x16GB kit
In that case one 16GB RAM module of four failed Memtest86 and I had to RMA the entire kit.
That kit was selected using Corsair RAM Selector for the motherboard.
The replacement kit = Corsair Vengeance RGB PRO 3200 4x16GB.
Corsair sent me the newer version (PRO) as the original kit is older and out of stock. The spec is 'identical' the changes are to the RAM style and the RGB's are individually addressable.
In that case three of 4 RAM sticks failed Memtest86 and I have been asked to RMA the RAM back to Corsair again.
I tested at default bios settings and clock speeds using ASUS original BIOS on the motherboard:
I also flashed the motherboard BIOS to the latest available BIOS:
ROG CROSSHAIR VII HERO (WI-FI) BIOS 1201
Memtest 86 Test results are the same.
I have the following questions:
1. Should I have to make changes to the Ram Timings in BIOS to help get this RAM to pass Memtest86?
2. Does anyone know if AMD X470 motherboards support a wide range of DDR4 RAM or is there only a small subset of RAM sticks that work with confidence in reality?
3. Is it possible to populate an X470 motherboard with 64GB at 3200 MHz?
4. What level of confidence can I have that Ram Manufacturers actually test their RAM to run with Ryzen 2700x on X470 motherboards at rated speed?
In the first case where 1 of 4 sticks in a kit fail I could possibly put that down to bad luck.
In second case with RMA replacement RAM where 3 of 4 modules fail Memtest86 this indicates to me a Quality Assurance issue or a lack of compatibility with X470 motherboards / lack of testing generally.
Please note I tested the motherboard and system extensively. I tested working sticks pass in all RAM slots.
I tested failing sticks in primary RAM slot and various other RAM slots.
I downloaded and cut two different Memtest86 USB sticks, just in case something was wrong with the Memtest86 installation / USB.
Solved! Go to Solution.
I have managed to run the 3rd RMA set of Corsair Vengeance RGB PRO 3200 4x16GB kit at 3200MHz and pass MemTest86.
Here is a shot of ASUS BIOS showing the CPU and Memory Frequency used:
Here is a screenshot showing passing MemTest86 Tests 1 to 10 with a Single Pass. It also passes a 4 Pass Run including the Hammer Test 13.
Looking at the Ryzen Specifications:
You need to be careful to have BIOS settings which will also pass MemTest86 at
Lower Clock frequency would usually imply less noise and it would not be unreasonable to assume that passing MemTest86 at
Easiest solution is to buy a G.Skill Flare DDR4-3200 kit, https://www.newegg.com/Product/Product.aspx?Item=N82E16820232530 it's guaranteed compatible with AMD Ryzen.
Just replace them with 2933Mhz, why bother with that little bandwith gain, if your using 64 GB of ram it will not matter anyhow, since this will only benifit just for a small amount for gaming or benchmarking and even than why risk unstability and a lesser lifespan of the CPU.
Thank you. I will consider going for G.Skill Flare DDR4-3200 kit.
I will check Asus Motherboard compatibility.
I will give Corsair one last chance chance to send me a working kit.
Thank you for your advice.
I will consider reducing RAM speed if I really have to.
I purchased 4x16GB kit but I might not run the entire kit in 1 machine.
I am doing multiple AMD builds so I could use the kit for 4 of 16GB machines or 2 of 32 GB etc.
I benchmark games and run GPU tests regularly so thats why I picked that RAM speed grade for Ryzen 2700x.
colesdav, please post a screenshot of Ryzen Master (RM). With four 16GB memory sticks in a dual channel machine, I suspect you now have a four (4) rank memory setup. This means 4 chip loads on the memory bus making it even more difficult to run at 3200 MHz. What speed are you actually running - use RM or CPU-Z to see? I also suggest you get a copy on Thaiphoon Burner and post the report. Please search for it because if I post a link it will delay my reply by minutes to days. It will tell us what chips are used on the sticks and what XMP choices you have. Ryzen and Samsung B-Dies seem to get on well. Thanks and enjoy, John.
Thanks for replying.
I have been in discussion with Asus Customer Support and Corsair about this problem over the past two days.
I have support cases open with both Asus and Corsair about this.
I had to remiove and prepare the RMA return of the second RAM Kit (Corsair Vengeance RGB Pro 3200MHz 4 x 16GB) end yesterday and it was picked up early today.
I did not get a chance to prepare the Ryzen Master Data etc you requested but I will do so once I get the the RMA replacement set.
Just to clarify the situation.
I have been running Memtest 86 with default BIOS settings and Asus BIOS hardware monitor reports 2133MHz RAM frequency.
For the first kit I purchased using Corsair memory selector - Vengeance RGB 4x16GB 3200MHz Modules.
I tested each individual16GB stick in the Asus ROG Crosshair Hero VII (Wifi) Motherboard slot DIMM_A2 as shown below in the motherboard manual.
Three of the four 16GB sticks passed Memtest 86 without any problem at default BIOS Setiings.
The fourth stick failed when tested with Memtest86 in DIMM_A2 with 3 Test 8 Errors [Random number sequence]
I was able to pass Memtest 86 with the remaining 3 Ram Sticks (48GB) occupying:
DIMM_A2, DIMM_B2 + DIMM_A1
DIMM_A2, DIMM_B2 + DIMM_B1
It simply looked like I had a single failing RAM Stick running the ASUS motherboard + Ryzen 2700x + DRAM at default BIOS settings.
I requested if Corsair could simply replace 1 of the sticks by sending me a replacement stick as close as possible to the RAM used in the kit.
Unfortunately that is not possible. I had to RMA the entire kit.
The replacement kit was a set of Corsair Vengeance RGB Pro 3200MHz 4 x 16GB - (note Pro which is a newer version of the kit I had, same spec, better individually addressable RGB lighting control,.
In that case 3 of the four sticks failed Memtest86 tested at default ASUS Motherboard BIOS settings.
I had to run multiple Memtest86 results again and report those to Corsair to get the second RMA approved.
So as far as I understand it I have not been pushing the RAM frequencies at all, and yet the memory is failing Memtest86.
Again I thank you for your help and suggestions so far.
If you think I am doing something wrong in testing so far please let me know. This is my first AMD PC build in years so I may be missing something.
I will report more data when I receive the new RAM Modules.
I may have just been unlucky and been hit with two bad batches of RAM in a row.
I learned that the hard way also concerning Corsair Ram Memory. I had purchased a kit of 4 x 4 gbyte Ram Modules. Worked great for several years until one of the RAM module went south. I opened a RMA and was told I needed to send in all 4 RAM modules and not the defective one after I already sent in to them the defective module by itself. They refused to send me a replacement one saying they cant guarantee compatibility. So I just ended up going to Corsair and buying the exact same RAM Memory as a single unit rather than a kit. So far everything works fine without any memory issues.
NOTE: The reason why I didn't want to send in all the RAM was because I could have been without use of a computer for more than two weeks or longer. Which is something I couldn't afford since at the time my wife didn't have a computer yet.
1) The 2700x is picky about ram - check the QVL (brand) and ask the dealer for compatibles
2) I never considered Corsair as a quality brand - reading their forums.. they do have plenty of bad quality issues!
other than that - who needs 4 banks ram? seriously? for what? I prefer 2 banks over 4 anytime means 2 banks less problems/trouble! Why complicated when you can have an easier life?!