Unable to use EXPO profiles on MAG B650 MORTAR WIFI

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beto.mtz015b402e1

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I can't use de EXPO profiles on my PC, because it just keeps rebooting until i turn it off:

CPU: RYZEN 7700X
RAM: KINGSTON FURY 64gbx4 6000mhz

It runs just fine with just 2 dimms, all sticks have been properly tested, but i haven't been able to make it work on 4 dimms, so i wonder if it's even possible
 
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See RAM explained: Why two modules are better than four / single- vs. dual-rank / stability testing

As you can see in this recent video from Linus Tech Tips for example, on an X670E Carbon Wifi with a 7950X3D, the 4x 16 GB refusing to run at EXPO speeds is the one thing that did not work properly on that PC. In this follow-up video, he states again that this was the only mistake that was made, not using 2x 32 GB when you want 64 GB total. And this is totally correct, especially for AM5.

Any total RAM capacity you want, with DDR5, try to reach it with two modules only. First i'd make sure you actually need that much RAM for your workloads, this would only be required for professional workloads. For daily use including gaming, you'd have more than enough RAM if you only use 2x 16 GB in slots A2 and B2, which is the optimal configuration for most people with DDR5.
 
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