GA-403F Hard Disk/Floppy Controller Settings and Configuration

Data bus:	32-bit, VL-bus
Size:	Three/quarter-length, full-height card
Hard drive supported:	Up to seven SCSI devices
Floppy drives supported:	Two 360KB, 720KB, 1.2MB or 1.44MB drives

CONNECTIONS
Function	Location
4-pin connector - drive active LED	J1
34-pin control cable connector - floppy drive	J2
50-pin SCSI connector - internal	J6
50-pin SCSI connector - external	J9

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Main board supports VL-bus ID3/synchronize local ready delay function.	JB1	pins 2 & 3 closed
	Main board does not support VL-bus ID3/synchronize local ready delay function.	JB1	pins 1 & 2 closed
»	Floppy controller enabled	J5	closed
	Floppy controller disabled	J5	open
»	Floptical/SCSI floppy and HD > 1GB support disabled	J8	open
	Floptical/SCSI floppy and HD > 1GB support enabled	J8	closed
»	SCSI BIOS enabled	SW1/2	on
	SCSI BIOS disabled	SW1/2	off
»	BIOS floptical/SCSI floppy support disabled	SW1/7	off
	BIOS floptical/SCSI floppy support enabled	SW1/7	on
»	Floptical/SCSI floppy and HD > 1GB support disabled	SW1/8	off
	Floptical/SCSI floppy and HD > 1GB support enabled	SW1/8	on

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	SCSI synchronous negotiation enabled	SW1/9	on
	SCSI synchronous negotiation disabled	SW1/9	off
»	SCSI disconnect enabled	SW1/10	on
	SCSI disconnect disabled	SW1/10	off
Note:Manufacturer’s documentation concerning the functions of SW1/7 & SW1/8 are conflicting. It is recommended that the user not alter factory-configured settings.

SCSI ADDRESS
Base Address		SW1/1
»	340h	on
	140h	off

BIOS ADDRESS
Address		SW1/3	SW1/4
»	DC000h	on	on
	D8000h	off	on
	CC000h	on	off
	C8000h	off	off

INTERRUPT SELECT
IRQ		SW1/5	SW1/6	J4/jumper A	J4/jumper B	J4/jumper C	J4/jumper D
»	IRQ11	off	on	open	open	closed	open
	IRQ9	off	off	closed	open	open	open
	IRQ10	on	off	open	closed	open	open
	IRQ12	on	on	open	open	open	open