I don't know MSI either but RandomX isn't dependant on DRAM speed so it's a waste of time to tweak it.
Don't spread lies. It is dependant on RAM speed and latency, we're talking about the difference between 12 kh/s and 15 kh/s on 3900X.
Randomx is dependant on latency which is why cache performance is more important than DRAM speed. There's no way
increasing DRAM performance, even by 25%, will increase the hashrate by the same amount. Huge pages, on the other
hand, can have that much of an effect by reducing effective memory latency with fewer TLB lookups.
I stand by my advice. There's nothing wrong with faster DRAM, it's just low on the priority list in this case.
I've found noticeable uplifts in performance from tuning RAM timings on my 9900K, 3950X and 5950X systems.
I'll fish out some exact numbers later from the 5950X system. I'm not sure it's 25%, but it's quite a hefty bump, I'm sure it's over 10%.