Hello,
By any chance anyone on this forum could mod the B350 PC MATE motherboard bios to support latest Ryzen 5000 series?
msi.com/Motherboard/support/B350-PC-MATE
Best,
No one will do such mod.
The bios will need to have a new AGESA V2 for Ryzen 5000 support. There is no known method to just replace the old AGESA with a new one.
Your best bet would be crossflashing with a B450 bios. Look for a bios from a B450 board with the same Multi I/O chip (Nuvoton NCT6795) and a 16Kb ROM size.