BIOS
Page 4-20
MPU-401: MPU-401 function enabled/disabled.
MPU-401 I/O Address: Built-in MPU-401 compatible MIDI I/O port selection.
The choice: 300-303H, 310-313H, 320-323H, 330-333H (default).
FM Port (388-38BH): Frequency modulation port at I/O port 388-38BH
enabled/disabled.
Game Port (200-207H): Built-in joystick port support disabled/enabled.
4-7 Load Setup Defaults
The LOAD SETUP DEFAULTS function loads the system default data directly
from ROM and initializes the associated hardware properly. This function will be
necessary only when the system CMOS data is corrupted.