overclock epyc

I bought this EPYC 9654 ES (100-000000894-04, some people call it QS) in Mar. last year and trying to overclock recently. I tried a lot but found it limited to 3.7GHz & 400W(PPT), so looking for some help. Some attempts: Modifying UEFI variables using ru.efi and Smokeless_UMAF: There are some...

As it says on the tin, does anyone know if it is possible to set higher DRAM speeds eg. DDR4 3600 on retail Milan CPUs? I seem to recall reading a post discussing tightening the timings, which is useful, but can the memory clock be increased?

In November of 2019 I first got my hands on an AMD EPYC Naples engineering sample. I thought it was really cool you could overclock 32-cores for a lot cheaper than a 2990WX and achieve mostly the same performance. Once I saw that there were next-generation EPYC Rome engineering samples floating...