M300-30 Motherboard Settings and Configuration

Processor	80486SX/80487SX
Processor Speed	25MHz
Chip Set	Unidentified
Max. Onboard DRAM	36MB
Cache	None
BIOS	Unidentified
Dimensions	220mm x 220mm
I/O Options	Parallel port, PS/2 mouse port, serial ports (2), VGA port, riser card
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
VGA port	CN1	PS/2 mouse port	CN4
Serial port 1	CN2	Serial port 2	CN5
Parallel port	CN3	Riser Card	SL1

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Password enabled	J14	pins 1 & 2 closed
	Password disabled	J14	pins 2 & 3 closed
»	Floppy drive write enabled	J16	pins 2 & 3 closed
	Floppy drive write disabled	J16	pins 1 & 2 closed
»	Factory configured - do not alter	J20	N/A
»	Factory configured - do not alter	J21	N/A
»	Factory configured - do not alter	J25	N/A
»	Factory configured - do not alter	J26	N/A
»	Factory configured - do not alter	J29	N/A

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
4MB	NONE	NONE	4MB
8MB	(4) 1M x 9	NONE	4MB
12MB	(4) 1M x 9	(4) 1M x 9	4MB
20MB	NONE	(4) 4M x 9	4MB
24MB	(4) 1M x 9	(4) 4M x 9	4MB
36MB	(4) 4M x 9	(4) 4M x 9	4MB
Note: Bank 2 is factory installed and is not configurable. The location is unidentified.

SERIAL PORT CONFIGURATION
Setting	J15	J18
Read, write & boot through serial ports enabled	pins 2 & 3 closed	pins 2 & 3 closed
Read, write & boot through serial ports disabled	pins 1 & 2 closed	pins 1 & 2 closed