ACD-ROM Hard Disk/Floppy Controller Settings and Configuration

Data Bus	32-bit VESA Local Bus
Card Size	Three-quarter length, half-height card
Hard Drives supported	Four IDE (AT) drives
Floppy drives supported	None
RAID levels supported	Two 360KB, 720KB, 1.2MB, 1.44MB or 2.88MB drives

CONNECTIONS
Function	Location	Function	Location
40-pin primary IDE(AT) connector	J1	25-pin parallel port - external	P2
40-pin secondary IDE(AT) connector	J2	34-pin cable connector - floppy drive	P3
2-pin connector - primary drive active LED	LED1	9-pin serial port 1 - external	P4
2-pin connector - mirror drive active LED	LED2	10-pin serial port 1 - internal	P5

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	IDE(AT) interface enabled	JP1/pins 5 & 6	Open
	IDE(AT) interface disabled	JP1/pins 5 & 6	Closed
»	IDE(AT) IRQ 14 select	JP2	Pins 1 & 2 closed
	IDE(AT) IRQ 15 select	JP2	Pins 3 & 4 closed
»	Parallel port IRQ 7 select	JP5	Pins 1 & 2 closed
	Parallel port IRQ 5 select	JP5	Pins 3 & 4 closed
»	Factory configured - do not alter	JP10	Reserved

IRQ AND SERIAL PORT ADDRESS SELECTION
Port	IRQ	JP6/pins 1 & 2	JP6/pins 3 & 4
COM1 (3F8h)	4	Closed	Open
COM2 (2F8h)	3	Open	Closed

BIOS SEGMENT ADDRESS CONFIGURATION
Segment Address		JP3/1	JP3/2	JP3/3	JP3/4
»	C800h-CBFFh	Closed	Open	Closed	Closed
	CC00h-CEFFh	Closed	Open	Open	Closed
	D000h-D3FFh	Open	Closed	Closed	Closed
	D400h-D7EEh	Open	Closed	Open	Closed
	D800h-DBFFh	Open	Open	Closed	Closed
	DC00h-DEFFh	Open	Open	Open	Closed
	Disabled	Open	Open	Open	Open

INTERNAL REGISTER SELECTION
Setting	JP1/pins 1 & 2	JP1/pins 3 & 4
Appian Chip AD4, AD8, ADC use internal register	Closed	Open
Appian Chip Dr, B8, BC use internal register	Open	Open

DMA CHANNEL SELECTION
Channel		JP4
	1	Pins 2 & 4, 3 & 5 closed
	3	Pins 1 & 3, 4 & 6 closed
»	None	Open