MSI X470 Gaming Plus XMP - CPU Issue

[Vilgrim]

Hello to all,

If anyone can assist with this issue please let me know.

So I have had the following hardware and it has been working for almost 3 years now with no major issues.

Ryzen 7 2700X
MSI X470 Gaming Plus Mobo
MSI RX580 8GB OC GPU
Corsair RM1000 PSU

Over the years I have had several ram configurations namely;

GSkill Trident Z 3200MHz 16GB kit 2x8GB. Ran OC at 3200MHz all the time. Then I added another GSkill kit the same as the first and they all played nicely together for quite a long while. The kits were produced more than a year apart and the PCB of the modules even looked slightly different but they worked. Mid last year I changed to GSkill Trident Z Neo 3600MHz 32GB kit 2x16GB and that ran perfectly at 3333MHz. Now I have changed to 2 GSkill Trident Z 3200MHZ kits of 16GB 2x8GB each . The four modules have serial numbers in sequence and are identical in production month and year so they came off the same run/batch.

Now the problem. Running 1 or two modules in any of the slots I get a standard speed of 2133MHz and can overclock to 3200MHz no problem. The moment I add the other two modules I get a standard speed of 1866MHz and no overclocking. If I set the XMP to 3200MHz and restart I get the CPU debug LED and the standard several reboots till it boots at default settings.

I have tried almost all of the BIOS updates with no joy yet. A0 A4 A5 A6 A7 A9 AH AK2, I will still work through the rest but my first and second ram setups all ran perfectly on A7.

Any ideas will be appreciated.

 

[skaduwee]

@The_Juggernaut

 

[Vilgrim]

Went to the Memory Try It option and selected 2800MHZ at the same Timings and blam, all working perfectly. No idea why they won't run at full tilt but I am okay with 2800. Thanks