DART 12.5 Motherboard Settings and Configuration

Processor	80286
Processor Speed	16/20MHz
Chip Set	ALR
Max. Onboard DRAM	2MB
Cache	None
BIOS	Phoenix
Dimensions	330mm x 218mm
I/O Options	Serial port, parallel port
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
Speaker	J19	Serial port 1	J31
Power LED & keylock	J20	Serial port 2 (optional)	J32
Parallel port	J30

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	Factory configured - do not alter	JP12	N/A
»	Turbo enabled	JP13	Closed
	Turbo disabled	JP13	Open
»	Monitor type select monochrome	SW1/1	Off
	Monitor type select color	SW1/1	On
»	Memory mode select system memory between 0-640KB	SW1/2	On
	Memory mode select system memory between 0-512KB	SW1/2	Off

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
512KB	(18) 41256	NONE	NONE	NONE
1MB	(18) 41256	(18) 41256	NONE	NONE
1.5KB	(18) 41256	(18) 41256	(18) 41256	NONE
2MB	(18) 41256	(18) 41256	(18) 41256	(18) 41256

DRAM SWITCH CONFIGURATION
Size	SW1/3	SW1/4
512KB	On	On
1MB	On	Off
1.5MB	Off	On
2MB	Off	Off

BIOS TYPE CONFIGURATION
Type	JP1	JP2	JP3	JP4	JP5	JP6
27128	Closed	Open	Closed	Closed	Open	Open
27256	Closed	Open	Open	Open	Closed	Closed

SERIAL PORT SWITCH CONFIGURATION
Serial 1	Serial 2	SW1/5	SW1/6
Disabled	Disabled	On	On
COM1	Disabled	Off	On
COM2	Disabled	On	Off
COM1	COM2	Off	Off
COM1	Disabled	Off	On
COM1	COM2	On	Off
Disabled	Disabled	Off	Off

SERIAL PORT JUMPER CONFIGURATION
Serial 1	Serial 2	JP9	JP10	JP11
Disabled	Disabled	Open	Open	Open
COM1	Disabled	Open	Closed	Open
COM2	Disabled	Closed	Open	Closed
COM1	COM2	Open	Closed	Closed
COM1	Disabled	Open	Closed	Open
COM1	COM2	Open	Closed	Closed
Disabled	Disabled	Open	Open	Open

PARALLEL PORT CONFIGURATION
Parallel	JP7	JP8	SW1/7	SW1/8
LPT1	Closed	Open	On	On
LPT2	Open	Closed	Off	On
Disabled	Open	Open	Off	Off