80386SX Motherboard Settings and Configuration

Processor	80386SX
Processor Speed	25MHz
Chip Set	Intel
Max. Onboard DRAM	16MB
Cache	None
BIOS	AMI
Dimensions	220mm x 236mm
I/O Options	None
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J17	Turbo switch	J24
Speaker	J21	Turbo LED	J25
Power LED & keylock	J22	Reset switch	J26

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	CMOS memory normal operation	J16	Open
	CMOS memory clear	J16	Closed
»	Battery select internal	J17	pins 2 & 3 closed
	Battery select external	J17	Closed
»	Monitor type select color	J18	Closed
	Monitor type select monochrome	J18	Open
»	Floppy drive current select low (12mA)	J19	Open
	Floppy drive current select high (24mA)	J19	Closed
»	Pipeline mode disabled	J20	Open
	Pipeline mode enabled	J20	Closed
»	NPU disabled	J23	pins 2 & 3 closed
	NPU enabled	J23	pins 1 & 2 closed

DRAM CONFIGURATION
Size	Bank 0	Parity (P-0)	Bank 1	Parity (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
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	(4) 441000	(2) 411000	NONE	NONE	NONE	NONE
2MB	NONE	NONE	NONE	NONE	(2) 1M x 9	NONE
4MB	(4) 441000	(2) 411000	(4) 441000	(2) 411000	NONE	NONE
4MB	NONE	NONE	NONE	NONE	(2) 1M x 9	(2) 1M x 9
8MB	NONE	NONE	NONE	NONE	(2) 4M x 9	NONE
16MB	NONE	NONE	NONE	NONE	(2) 4M x 9	(2) 4M x 9