CM-252 Motherboard Settings and Configuration

Processor	80286
Processor Speed	12/16MHz
Chip Set	C & T
Max. Onboard DRAM	4MB
Cache	None
BIOS	AMI
Dimensions	243mm x 218mm
I/O Options	None
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
Turbo LED	J11	Speaker	J14
Turbo switch	J12	Power LED & keylock	J15
Reset switch	J13

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Power good signal detect from power supply	J2	pins 2 & 3 closed
	Power good signal detect from board	J2	pins 1 & 2 closed
»	Factory configured - do not alter	J4	N/A
»	Monitor type select color	J5	pins 2 & 3 closed
	Monitor type select monochrome	J5	pins 1 & 2 closed
»	Factory configured - do not alter	J8	N/A
»	Factory configured - do not alter	J9	N/A
»	NPU clock select iOSC	J10	Closed
	NPU clock select external OSC	J10	Open

DRAM CONFIGURATION
Size	Bank 0	P-0	Bank 1	P-1	Bank 2	Bank 3
512KB	(4) 44256	(2) 41256	NONE	NONE	NONE	NONE
512KB	NONE	NONE	NONE	NONE	(2) 256K x 9	NONE
640KB	(4) 44256	(2) 41256	(4) 4464	(2) 4164	NONE	NONE
1MB	(4) 44256	(2) 41256	(4) 44256	(2) 41256	NONE	NONE
1MB	NONE	NONE	NONE	NONE	(2) 256K x 9	(2) 256K x 9
2MB	NONE	NONE	NONE	NONE	(2) 1M x 9	NONE
4MB	NONE	NONE	NONE	NONE	(2) 1M x 9	(2) 1M x 9