Data bus:	16-bit, ISA
Size:	Full-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
26-pin parallel port (LPT1/2/3) - internal	J3
10-pin serial port 1 (COM1/2/3/4) - internal	J4
10-pin serial port 2 (COM1/2/3/4) - internal	J5
4-pin connector - Drive active LED	J6
28-pin VESA(VGA) feature connector - internal	J7
26-pin VESA(EGA) feature connector - internal	J11
15-pin analog VGA port - external	J13
9-pin digital EGA port- external	J21

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Pin 34 on IDE interface grounded	J10	closed
	Pin 34 on IDE interface not grounded	J10	open
»	Floppy drive precompensation is 125ns	J12	open
	Floppy drive precompensation is 187ns	J12	closed
»	Hard drive enabled	J14	closed
	Hard drive disabled	J14	open
»	On-board video enabled	J15	closed
	On-board video disabled	J15	open
»	Floppy drive Interrupt IRQ6 enabled	J16	closed
	Floppy drive Interrupt IRQ6 disabled	J16	open

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Single speed floppy drives supported	J17	open
	Dual speed floppy drives supported	J17	closed
»	16-bit video bus enabled	J18	open
	8-bit video bus enabled	J18	closed
»	Floppy drive change signal sense enabled	J19	closed
	Floppy drive change signal sense disabled	J19	open
»	VGA clock enabled (normal operation)	J22	pins 1 & 2 closed
	Feature connector clock enabled	J22	pins 2 & 3 closed
»	Hard drive Interrupt IRQ14 enabled	J24	closed
	Hard drive Interrupt IRQ14 disabled	J24	open

IDE IOCHRDY PIN SELECTION
Function		J8	J9
»	IDE IOCHRDY from IDE pin 21 enabled	off	on
	IDE IOCHRDY from IDE pin 27 enabled	on	off
	Pin 21 setting is for Seagate, CDC, Imprimis, and Miniscribe hard drives. Pin 27 setting is for Quantum hard drives. Conner and WD hard drives ignore the setting of these switches.

SERIAL PORT 1 CONFIGURATION
COM		S1/switch 1	S1/switch 2	S1/switch 3	S1/switch 4
»	1	on	off	off	off
	2	off	on	off	off
	3	off	off	on	off
	4	off	off	off	on
	Disabled	off	off	off	off

SERIAL PORT 1 (J4) INTERRUPT REQUEST
IRQ		S1/switch 5	S1/switch 6
»	3	on	off
	4	off	on
	Disabled	off	off

PARALLEL PORT (J3) CONFIGURATION - S2
LPT		S2/switch 1	S2/switch 2	S2/switch 3
»	1	on	off	off
	2	off	on	off
	3	off	off	on
	Disabled	off	off	off

PARALLEL PORT (J3) INTERRUPT REQUEST
IRQ		S2/switch 5	S2/switch 6
»	7	off	on
	5	on	off
	Disabled	off	off

SERIAL PORT 2 CONFIGURATION
COM		S3/switch 1	S3/switch 2	S3/switch 3	S3/switch 4
»	1	on	off	off	off
	2	off	on	off	off
	3	off	off	on	off
	4	off	off	off	on
	Disabled	off	off	off	off

SERIAL PORT 2 (J5) INTERRUPT REQUEST
IRQ		S3/switch 5	S3/switch 6
»	4	off	on
	3	on	off
	Disabled	off	off

VIDEO DISPLAY CONFIGURATION
Primary Adapter		Secondary Adapter	JP20	S4/1	S4/2	S4/3	S4/4
	*Monochrome	EGA w/CGA 40 x 25	1 & 2	on	on	on	on
	*Monochrome	EGA w/CGA 80 x 25	1 & 2	off	on	on	on
	*Monochrome	EGA w/EGA 200 line	1 & 2	on	off	on	on
	*Monochrome	EGA w/EGA 350 line	1 & 2	off	off	on	on
	*CGA 40 x 25	EGA w/monochrome	2 & 3	on	on	off	on
	*CGA 80 x 25	EGA w/monochrome	2 & 3	off	on	off	on
	EGA w/CGA 40 x 25	*Monochrome or none	1 & 2	on	off	off	on
	EGA w/CGA 80 x 25	*Monochrome or none	1 & 2	off	off	off	on
	EGA w/EGA 200 line	*Monochrome or none	1 & 2	on	on	on	off
»	EGA w/EGA 350 line	*Monochrome or none	1 & 2	off	on	on	off
	EGA w/monochrome	*CGA 40 x 25 or none	2 & 3	on	off	on	off
	EGA w/monochrome	*CGA 80 x 25 or none	2 & 3	off	off	on	off
	VGA enable (all other modes disabled)	S4/switch 5 on
	All other modes enable (VGA mode disabled)	S4/switch 5 off
	For JP20 pins designated should be in a closed position. When VGA mode is enabled, the settings of JP20 and S4/switch 1 - 4 are ignored. The options with a (*) in front of them require an add-on card to function.

MISCELLANEOUS TECHNICAL NOTES

The function of S2/switch 4 is undocumented. All other jumpers are for factory tests and should remain factory-configured.