Processor	80386DX
Processor Speed	16/20MHz
Chip Set	ACC
Max. onboard DRAM	5MB
SRAM Cache	None
BIOS	Phoenix
Dimensions	220mm x 220mm
I/O Options	Fax/modem daughterboard, floppy drive interface, game port, IDE interface, parallel port, PS/2 keyboard port, PS/2 mouse port, serial port, VGA port
NPU Options	80837SX

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	BATT	Parallel port	JLPT
Serial port	JCOM2	Proprietary modem daughterboard	JMOD
Floppy drive interface	JFDD	PS/2 keyboard	JPKB
Game port	JGAM	PS/2 mouse	JPMS
IDE interface	JHDD	Speaker	JSPK
IDE interface LED	JHDI	VGA port	JVGA
Front panel connector	JIND	Riser card	S1
Keylock	JKL

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	Onboard battery enabled	JBTS	Open
	Onboard battery disabled	JBTS	Closed
»	Onboard floppy drive interface select primary address	JFDC	pins 1 & 2 closed
	Onboard floppy drive interface select secondary address	JFDC	pins 2 & 3 closed
»	Onboard Game port enabled	JGAMS	pins 1 & 2 closed
	Onboard Game port disabled	JGAMS	pins 2 & 3 closed
»	Onboard IDE interface select primary address	JHDC	pins 1 & 2 closed
	Onboard IDE interface select secondary address	JHDC	pins 2 & 3 closed
»	PS/2 mouse port enabled (IRQ12)	JMRQ	Closed
	PS/2 mouse port disabled	JMRQ	Open
»	Pipeline mode enabled	JPIP	Closed
	Pipeline mode disabled	JPIP	Open
»	Onboard speaker enabled	JSPKS	pins 1 & 2 closed
	Onboard speaker disabled	JSPKS	pins 2 & 3 closed
»	Monitor type select color	JVD	Closed
	Monitor type select monochrome	JVD	Open
Note:Some boards have the game port jumper (JGAMS) reversed.

DRAM CONFIGURATION
Size	Bank 0	Parity 0	Bank 1	Parity 1	Bank 2	Bank 3
1MB	(4) 44256	(2) 41256	(4) 44256	(2) 41256	NONE	NONE
1.5MB	(4) 44256	(2) 41256	(4) 44256	(2) 41256	(2) 256K x 9	NONE
2MB	(4) 44256	(2) 41256	(4) 44256	(2) 41256	(2) 256K x 9	(2) 256K x 9
3MB	(4) 44256	(2) 41256	(4) 44256	(2) 41256	(2) 1M x 9	NONE
3,5MB	(4) 44256	(2) 41256	(4) 44256	(2) 41256	(2) 1M x 9	(2) 256K x 9
5MB	(4) 44256	(2) 41256	(4) 44256	(2) 41256	(2) 1M x 9	(2) 1M x 9
Note:4M x 9 SIMMs are not supported. Parity chips are not present on all boards. Banks 0 & 1 are soldered to the board and should not be altered.

VRAM CONFIGURATION
Size	Bank 0	Bank 1
256KB	(2) 44256	NONE
512KB	(2) 44256	(2) 44256
Note:Bank 0 is soldered to the board and should not be altered.

VIDEO CONFIGURATION
Mode		IRQ	Monitor	JINLC	JVGAS	JVRQ
»	Enabled	IRQ9	Interlaced	Closed	pins 1 & 2	Closed
	Enabled	None	Interlaced	Closed	pins 1 & 2	Open
	Enabled	IRQ9	Non-Interlaced	Open	pins 1 & 2	Closed
	Enabled	None	Non-Interlaced	Open	pins 1 & 2	Open
	Disabled	N/A	N/A	N/A	pins 2 & 3	N/A

SERIAL PORT CONFIGURATION
Modem (JMOD)	Port B (JCOM2)	ISA Modem	JC13	JC24	JMODJ
Disabled	COM2	None	N/A	pins 1 & 2	Closed
Disabled	COM2	COM1	pins 2 & 3	pins 1 & 2	Closed
Disabled	COM2	COM3	pins 1 & 2	pins 1 & 2	Closed
COM1	COM2	None	pins 1 & 2	pins 1 & 2	Open
COM3	COM2	None	pins 2 & 3	pins 1 & 2	Open
Disabled	COM4	None	N/A	pins 2 & 3	Closed
Disabled	COM4	COM1	pins 2 & 3	pins 2 & 3	Closed
Disabled	COM4	COM3	pins 1 & 2	pins 2 & 3	Closed
COM1	COM4	None	pins 1 & 2	pins 2 & 3	Open
COM3	COM4	None	pins 2 & 3	pins 2 & 3	Open
Note:* JMODJ is a special block placed on JMOD iteself, connecting pins 10 and 11 together diagonally. Permanent damage to the board will occur if the JMODJ jumper is installed improperly. Pins designated should be in the closed position.

PARALLEL PORT CONFIGURATION
LPT		IRQ	JLPS	JLRQ
»	LPT1	IRQ7	pins 1 & 2 closed	pins 1 & 2 closed
	LPT1	IRQ5	pins 1 & 2 closed	pins 2 & 3 closed
	LPT2	IRQ7	pins 2 & 3 closed	pins 1 & 2 closed
	LPT2	IRQ5	pins 2 & 3 closed	pins 2 & 3 closed