IBM B50 - Manual (Page 34)

Console Selection
After the server starts up, you can select the system console for your server if one
has not been chosen before (or if your display adapter configuration has changed).
The system console functions as the primary display and keyboard for your server.
On a graphical display, the console selection screen looks like the following
illustration:
If the console selection screen appears, each display and ASCII terminal attached to
your server appears with a number. To define a display or ASCII terminal as your
system console, press the number on the keyboard that corresponds to the system
console you choose.
If a console is not chosen after a certain amount of time, the server automatically
chooses an ASCII terminal as the system console (whether or not one is installed).
To choose another system console, you must shut down and restart the server.
2-2 7046 Model B50 User's Guide