DRS M35/286 Motherboard Settings and Configuration

Processor	80286
Processor Speed	Unidentified
Chip Set	Unidentified
Max. Onboard DRAM	5MB
Cache	None
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	Floppy drive interface, IDE interface, parallel port, serial ports (2), PS/2 mouse interface, VGA feature connector, VGA port, riser slot
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
Keyboard connector	J1	IDE interface LED	JP6
Reset switch	J2	VGA feature connector	JP14
PS/2 mouse interface	J3	Serial port	P1
External battery	J5	Serial port	P2
Keylock	J1A1	Parallel port	P3
IDE interface	JP1	VGA port	P4
Floppy drive interface	JP2	Riser slot	SL1

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
	Password enabled	CON1	Closed
	Password disabled	CON1	Open
	Parallel port IRQ select IRQ7	JP5	Pins 2 & 3 closed
	Parallel port IRQ select IRQ5	JP5	Pins 1 & 2 closed
	On board video enabled	JP15	Closed
	On board video disabled	JP15	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
1MB	1MB	None	None
1.5MB	1MB	(2) 256K x 9	None
2MB	1MB	(2) 256K x 9	(2) 256K x 9
3MB	1MB	(2) 1M x 9	None
5MB	1MB	(2) 1M x 9	(2) 1M x 9
Note: Bank 0 is factory installed and is not configurable.

MISCELLANEOUS TECHNICAL NOTE

The location of pin 1 is unidentified.