80386SX CACHING BOARD Motherboard Settings and Configuration

Processor	80386SX
Processor Speed	25MHz
Chip Set	Micronics
Max. Onboard DRAM	16MB
Cache	32KB
BIOS	Phoenix
Dimensions	330mm x 218mm
I/O Options	Floppy drive interface, IDE interface, parallel port, serial ports (2)
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 2	J6	External keyboard connector	J30
Serial port 1	J8	External battery connector	P1
Parallel port	J9	Reset switch	P2
IDE interface	J19	External speaker	P3
Floppy drive interface	J20	Power LED & keylock	P4
IDE interface LED	J21

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	W1	Closed
	Monitor type select monochrome	W1	Open
»	Factory configured-do not alter	W2	Open
»	Factory configured-do not alter	W3	Open
»	CMOS memory normal	W4	pins 1 & 2 closed
	CMOS memory clear	W4	pins 2 & 3 closed
	4MB SIMMs installed	W5	pins 2 & 3 closed
	4MB SIMMS not installed	W5	pins 1 & 2, 3 & 4 closed
»	Factory configured-do not alter	W6	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(2) 256KB x 9	(2) 256KB x 9	NONE	NONE
1.5MB	(2) 256KB x 9	(2) 256KB x 9	(2) 256KB x 9	NONE
2MB	(2) 256KB x 9	(2) 256KB x 9	(2) 256KB x 9	(2) 256KB x 9
3MB	(2) 256KB x 9	(2) 256KB x 9	(2) 1MB x 9	NONE
4MB	(2) 1MB x 9	(2) 1MB x 9	NONE	NONE
6MB	(2) 1MB x 9	(2) 1MB x 9	(2) 1MB x 9	NONE
8MB	(2) 1MB x 9	(2) 1MB x 9	(2) 1MB x 9	(2) 1MB x 9
9MB	(2) 256KB x 9	(2) 256KB x 9	(2) 4MB x 9	NONE
10MB	(2) 1MB x 9	(2) 4MB x 9	NONE	NONE
16MB	(2) 4MB x 9	(2) 4MB x 9	NONE	NONE