HP Visualize J2240 Service Handbook page 216

The boot console displays a message that tells you that your new monitor selection
will take affect the next time you reboot your system. The boot console also displays
the new monitor information. Where N is the slot number in which the graphics
adapter is installed.
Trying to change the monitor type to a number not listed for that graphics device fails
and gives you the following warning message:
Value of monitor type n out of range (n – nn)
Trying to change the monitor type on an empty slot fails and gives you the following
warning message:
No such graphics card.
10–14 Boot Console