AT-420GW SUPER I/O CARD Hard Disk/Floppy Controller Settings and Configuration

Chipset	Winbond
Data Bus	16-bit ISA
Card Size	Half height, half length
Hard Drives Supported	Two IDE(AT) devices
Floppy Drives Supported	Two 360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS
Function	Label	Function	Label
40-pin IDE(AT) connector	JP1	2-pin drive active LED	JP8
16-pin game port	JP2	34-pin cable connector - floppy drive	JP9
10-pin serial port 1 - internal	JP3	25-pin parallel port - external	JP15
9-pin serial port 2 - external	JP4

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	IDE IOR signal from mainboard	J1	Pins 2 & 3 closed
	IDE IOR signal from chipset	J1	Pins 1 & 2 closed
»	IDE IOW signal from mainboard	J2	Pins 2 & 3 closed
	IDE IOW signal from chipset	J2	Pins 1 & 2 closed
»	Floppy drive order is normal (A:, B:)	JP6/A	Pins 1 & 2 closed
	Floppy drive order is reversed (B:, A:)	JP6/A	Pins 2 & 3 closed
»	Floppy address is 3F0h	JP6/B	Pins 2 & 3 closed
	Floppy address is 370h	JP6/B	Pins 1 & 2 closed
»	IDE(AT) interface enabled	JP6/C	Pins 1 & 2 closed
	IDE(AT) interface disabled	JP6/C	Pins 2 & 3 closed
»	IDE(AT) address is 1F0h	JP6/D	Pins 2 & 3 closed
	IDE(AT) address is 170h	JP6/D	Pins 1 & 2 closed
»	Floppy controller enabled	JP6/E	Pins 1 & 2 closed
	Floppy controller disabled	JP6/E	Pins 2 & 3 closed
	Parallel port is unidirectional	JP11	Closed
	Parallel port is bidirectional	JP11	Open
	Game port enabled	JP16	Closed
	Game port disabled	JP16	Open

SERIAL PORT 1 ADDRESS SELECTION
Setting		JP9/A	JP9/B
»	3F8h (COM1:)	Pins 1 & 2 closed	Pins 2 & 3 closed
	3E8h (COM3:)	Pins 2 & 3 closed	Pins 1 & 2 closed
	2E8h (COM4:)	Pins 1 & 2 closed	Pins 1 & 2 closed
	Disabled	Pins 2 & 3 closed	Pins 2 & 3 closed

SERIAL PORT 2 ADDRESS SELECTION
Setting	JP9/C	JP9/D
2F8h (COM2:)	Pins 1 & 2 closed	Pins 2 & 3 closed
3E8h (COM3:)	Pins 1 & 2 closed	Pins 1 & 2 closed
2E8h (COM4:)	Pins 2 & 3 closed	Pins 1 & 2 closed
Disabled	Pins 2 & 3 closed	Pins 2 & 3 closed

PARALLEL PORT ADDRESS SELECTION
Setting		JP9/E	JP9/F
»	378h	Pins 2 & 3 closed	Pins 1 & 2 closed
	278h	Pins 1 & 2 closed	Pins 2 & 3 closed
	3BCh	Pins 1 & 2 closed	Pins 1 & 2 closed
	Disabled	Pins 2 & 3 closed	Pins 2 & 3 closed

SERIAL PORT 1 INTERRUPT SELECTION
Setting		JP12/A	JP12/B	JP12/C
	IRQ3	Open	Closed	Open
»	IRQ4	Closed	Open	Open
	IRQ5	Open	Open	Closed

SERIAL PORT 2 INTERRUPT SELECTION
Setting		JP12/A	JP12/B	JP12/C
»	IRQ3	Closed	Open	Open
	IRQ4	Open	Closed	Open
	IRQ5	Open	Open	Closed

PARALLEL PORT INTERRUPT SELECTION
Setting		JP12/G	JP12/H
	IRQ5	Open	Closed
»	IRQ7	Closed	Open