UPGRADABLE SYSTEMS MAINBOARD Motherboard Settings and Configuration

Processor	80386/80486SX/80487SX/80486DX (On proprietary CPU cards)
Processor Speed	20/25/33MHz
Chip Set	Unidentified
Max. Onboard DRAM	32MB
Cache	128KB
BIOS	Award
Dimensions	330mm x 218mm
I/O Options	floppy drive interface, game port, IDE interface, parallel port, serial ports (2), proprietary CPU card slot
NPU Options	80387

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J1	Turbo switch	J10
Game port	J3	Reset switch	J11
Parallel port	J5	Turbo LED	J12
Serial port 2	J6	Power LED & keylock	J13
Serial port 1	J7	Speaker	J14
Floppy drive interface	J8	IDE interface LED	J15
IDE interface	J9	Proprietary CPU card slot	CPU1 & CPU2

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select CGA	J4	Closed
	Monitor type select Mono/EGA/VGA	J4	Open
»	Game port enabled	P1	Closed
	Game port disabled	P1	Open
»	Parallel port interupt select IRQ7	PIRQ	pins 1 & 2 closed
	Parallel port interupt select IRQ5	PIRQ	pins 2 & 3 closed
	Parallel port interupt disabled	PIRQ	all open
»	Serial port 1 (COM1) interupt select IRQ4	SIRQ1	pins 2 & 3 closed
	Serial port 1 (COM1) interupt select IRQ3	SIRQ1	pins 1 & 2 closed
	Serial port 1 (COM1) interupt disabled	SIRQ1	all open
»	Serial port 2 (COM2) interupt select IRQ3	SIRQ2	pins 1 & 2 closed
	Serial port 2 (COM2) interupt select IRQ4	SIRQ2	pins 2 & 3 closed
	Serial port 2 (COM2) interupt disabled	SIRQ2	all open

DRAM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(4) 256K x 9	NONE
2MB	(4) 256K x 9	(4) 256K x 9
4MB	(4) 1M x 9	NONE
5MB	(4) 1M x 9	(4) 256K x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
20MB	(4) 4M x 9	(4) 1M x 9
32MB	(4) 4M x 9	(4) 4M x 9