jimshenzhen, your MB vendor should have a a QVL (Qualified Vendor List) for the memory. Please look there. You have not provided nearly enough information to help you further. Please see the required information list for posting here. Thanks and enjoy, John
That memory is not on MSI's QVL for this motherboard. Thus, it is untested, and it may not work properly. The QVL is here:
According to MSI Support on your Motherboard, You have a fairly new BIOS and AMD CHIPSET update. If you have an older BIOS or AMD CHIPSET, might be a good idea to update the BIOS and CHIPSET which makes the Ryzen more compatible with the motherboard: Support For X470 GAMING PLUS | Motherboard - The world leader in motherboard design | MSI Global
- Update AGESA Code 188.8.131.52C
- Enhance memory over clocking capability.
System & Chipset Drivers
TitleAMD Chipset DriverVersion
- Support Bristol Ridge CPU、Summit Ridge CPU、Pinnacle Ridge CPU.
- Include AMD SMBus Driver、AMD Graphics Driver、AMD USB Controller Driver(only WIN7).
- Microsoft Win7 Hotfix installation is required for AMD Chipset Driver to be installed successfully.
Here is a list of RAM MEMORY QVL List for the Ryzen 2xxx series CPUs: Support For X470 GAMING PLUS | Motherboard - The world leader in motherboard design | MSI Global
These are the ONLY TWO RAM MEMORY Modules listed for SAMSUNG made RAM MEMORY:
Samsung M378A2K43CB1-CTD 2666 2400 Samsung K4A8G085WC 1.2V DUAL 16GB √ | √ | √ Samsung M378A1K43CB2-CTD 2666 2400 Samsung K4A8G085WC 1.2V SINGLE 8GB √ | √ | √
These are the ONLY TWO SAMSUNG RAM Modules listed on the QVL List. Need to go all the way to the bottom of the list to see these two entries.
Thank you all for the response.
I bought another memory which is within the msi compatible list, and it works fine.
So it's the incompatible memory.