Asus Tuf gaming b550-plus CPU Question

[rotary616]

Hi,
I just aquired an Asus Tuf gaming b550-plus motherboard.
When i tried to boot with a Ryzen 3 3100 cpu, i got a flashing
cpu debug light. Then i tried to boot with a ryzen 3 3200g and
the board booted just fine. The problem is the 3100 is supported
on the Asus website and the 3200g is not supported. Why would
it work with an unsupported cpu and not the 3100 which is supported.
I updated the bios to latest version but that did not help. Also tried clearing
cmos but no help. Tried replacing the bios chip with new one, same result.
Any help would be appreciated.
Thanks

[matpat]

Reading on Reddit, it apoears other people have had success with using a 3200G on the same motherboard.
You should try the 3100 on a spare motherboard and see if it is functional.

[SMDFlea]

Hi,
When i tried to boot with a Ryzen 3 3100 cpu, i got a flashing
cpu debug light. Then i tried to boot with a ryzen 3 3200g and
the board booted just fine. The problem is the 3100 is supported
on the Asus website and the 3200g is not supported.

The 3100 has no built in graphics so you would need a discreet GPU. The 3200G has built in graphics