AT BUS + 2S/1P Hard Disk/Floppy Controller Settings and Configuration

Data bus:	16-bit, ISA
Size:	Half-length, full-height card
Hard drive supported:	Two IDE (AT) Interface drives
Floppy drives supported:	Two 360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS
Function	Location
40-pin IDE(AT) Interface connector	J1
34-pin control cable connector - floppy drive	J2
4-pin connector - Drive active LED	J5
10-pin serial port (COM2/4) - internal	J9
10-pin serial port (COM1/3) - external	J10
25-pin parallel port (LPT1/2) - external	J12

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Single speed floppy drives supported	J3	pins 1 & 2 closed
	Dual speed floppy drives supported	J3	pins 2 & 3 closed
»	Floppy drive precompensation enabled	J4	pins 2 & 3 closed
	Floppy drive precompensation disabled	J4	pins 1 & 2 closed
»	Chasis ground enabled	J11	closed
	Chasis ground disabled	J11	open
»	Serial Port 2 (J9) Interrupt Request IRQ3 enabled	J13/jumper 3	closed
	Serial Port 2 (J9) Interrupt Request IRQ3 disabled	J13/jumper 3	open
»	Serial Port 1 (J10) Interrupt Request IRQ4 enabled	J13/jumper 4	closed
	Serial Port 1 (J10) Interrupt Request IRQ4 disabled	J13/jumper 4	open

BIOS TYPE CONFIGURATION
Type		J6/jumper 1	J6/jumper 2
»	IBM-compatible BIOS	open	closed
	IBM BIOS	closed	open

SERIAL PORT 1 (J10) CONFIGURATION
COM		J7/jumper 1	J7/jumper 3
»	1	closed	open
	3	open	closed

SERIAL PORT 2 (J9) CONFIGURATION
COM		J7/jumper 2	J7/jumper 4
»	2	closed	open
	4	open	closed

PARALLEL PORT (J12) CONFIGURATION
LPT		J7/jumper 5	J7/jumper 6
»	1	open	closed
	2	closed	open
	Disabled	open	open

FLOPPY DRIVE CONFIGURATION
Function		J8/jumper 1	J8/jumper 2
»	Floppy drive port address is 3F0-3F7h	closed	open
	Floppy drive port address is 370-377h	open	closed
	Floppy drive disabled	open	open

PARALLEL PORT (J12) INTERRUPT REQUEST
IRQ		J13/jumper 1	J13/jumper 2
	5	closed	open
»	7	open	closed