OPM 386 MOTHER BOARD Motherboard Settings and Configuration

Processor	80386DX
Processor Speed	25MHz
Chip Set	OPTI
Max. Onboard DRAM	8MB
Cache	None
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	IDE interface, Floppy drive interface
NPU Options	80387DX/3167

CONNECTIONS
Purpose	Location	Purpose	Location
Turbo switch	J1	Speaker	J7
Reset switch	J2	IDE interface	J9
Turbo LED	J3	Floppy drive interface	J10
Power LED & keylock	J5	External battery	JP6
IDE interface LED	J6

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
	Monitor type select color	J4	pins 1 & 2 closed
	Monitor type select monochrome	J4	pins 2 & 3 closed
»	Pipeline disabled	J8	pins 1 & 2 closed
	Pipeline enabled	J8	pins 2 & 3 closed
»	Floppy drive interface address select 370h - 377h	JP3	Closed
	Floppy drive interface address select 3F0h - 3FFh	JP3	Open
	Floppy drive interface enabled	JP4	Closed
	Floppy drive interface disabled	JP4	Open
Note: The location of J8 is unidentified.

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) 256K x 9	(4) 1M x 9
5MB	(4) 1M x 9	(4) 256K x 9
8MB	(4) 1M x 9	(4) 1M x 9

IDE INTERFACE CONFIGURATION
Setting	JP1	JP2
Enabled	Open	Closed
Disabled	Closed	Open