Supermicro seems to use more or less that same BMC firmware, at least that’s how it appears from looking at the BMC firmware version numbers, across all of their motherboards. Unlike many other BMCs (notably the Intel BMC/RMM3), you can not set enable/disable usernames or set passwords from the BIOS. The Supermicros default to DHCP and come up immediately with the default name and password.
Many version of the BMC include a java console redirect applet that *does not* work with 64bit JVM on Linux.
Every SM board I’ve touched has used the same default user/passwd.
username: ADMIN password: ADMIN