ASRock Rack has created the first AM4 socket server boards, X470D4U, X470D4U2-2T

Depends on a BIOS version it came with. There should be a sticker with a version on the chip itself - next to the m.2 slots. (At least I have one on my board)
Ryzen 3600 is supported since version P3.10

I am seeing this kind of comments for some time now. Maybe it’s just not flashing properly and people don’t know what it should look like.

This is how the procedure should look like. In this case from 3.30 to 3.33:
(Running in a clean chromium - just installed, clean profile, no addons, adblock, custom settings, etc.)

Server is off - it must be off!
see the ‘Host is currently off’ note in the power control tab


Current version is 3.30

the update page

chose the 3.33 bios

start uploading, for me it was ‘stuck’ at 99% for about a minute

the upload part finished, propt to continue

flashing in progress

finished, click ok and login again

ipmi still shows 3.30, thats ok, we didn’t post yet

power on, go into the bios - it will show 3.33,
then power off and go back to the ipmi, now it shows 3.33: