[request/question] EliteDesk 705 G4 DM (mini 35w) cpu upgrade bios mod possible?

[GizmoTheGreen]

Can the bios of this machine be modded to accept newer CPU like ryzen 5000? or even just 3400ge
seems officially it doesn't support anything over 2400G.

since it has AM4 socket, I was hoping. 

link to latest bios https://ftp.hp.com/pub/softpaq/sp146001-...146047.exe
if mod is possible I can send a bios dump in PM

[DeathBringer]

Post a screenshot of Mainboard tab of CPU-Z.
Explain exactly what happens when you try to boot with new CPU.

[GizmoTheGreen]

Post a screenshot of Mainboard tab of CPU-Z.
Explain exactly what happens when you try to boot with new CPU.

   
the only CPU I have on hand I could probably try with is a 5600g.

other posts on HP forums and others forums asking about CPU upgrades on this PC simply says trying any CPU that isn't on the support list results in no boot at all. no picture. (like here)
supported list can be found here https://support.hp.com/rs-en/document/c06060556 it's only 4 or 5 cpus.

I can attempt the 5600g when I get home from work today.

[DeathBringer]

no boot at all. no picture.

So I can't help.