OptiPlex 5055 AMD Ryzen 3000 / 5000 Upgrade

[Rolf007]

Hello,

I'm looking for a modified BIOS for Dell OptiPlex 5055 with AMD Mainboard (AM4). At the moment there only works AMD PRO A12-9800, A10-9700, A8-9600, and A6-9500 CPU. I would like to get them work with AMD Ryzen CPUs 3rd and 5th Gen. The motherboard seems to have a B350 chipset, so theoretically it should work with AMD Ryzen CPUs like e.g. AMD Ryzen 5 5600G. Maybe someone can help me with a moded BIOS.

[Autian]

I also have an OptiPlex 5055 B350 AM4 Motherboard here from which I dumped the BIOS image that was updated with the version 1.13.0 from 19 Aug 2024. It is an Insyde UEFI with a Windows 8 esque GUI, supports only AMD Zen 1 processors, contains the AGESA!V9 RavenPI-FP5-AM4 1.1.0.F module and has microcodes for CPUs with CPUIDs 800F11, 800F10, 800F00 and 800F12.

I would like to get a AMD Ryzen 7 5700G (Cezanne, CPUID A50F00, Family 19h) running on it and wouldn't mind losing support for any other CPU.

Can someone point me to resources where I could do a mod to accomplish this by myself or provide a mod? I don't believe a simple microcode replacement is going to do it.

Thanks in advance.