Ryzen doesn't disable ECC and from looking at the SuperMicro motherboards that support Epyc 4004, they appears to use up to 192GB UDIMM, similar to Ryzen. We do need more RAM options that support ECC though.
@SAFEDISK Will the beta BIOS support the new Epyc 4004 series processors?
https://www.amd.com/content/dam/amd/en/documents/products/epyc/amd-epyc-4004-processor-datasheet.pdf
Someone please hop in if I'm wrong, but that voltage looks consistent with what I see on my system. I also wish it were lower and often I run with a negative voltage offset. I wouldn't worry about the SP score too much. I think it can vary depending ...