80386SX Motherboard Settings and Configuration

Processor	80386SX
Processor Speed	16/20/25/33MHz
Chip Set	VLSI
Max. Onboard DRAM	16MB
Cache	None
BIOS	AWARD
Dimensions	330mm x 218mm
I/O Options	Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	CN1	IDE interface	CN8
Speaker	CN2	Floppy drive interface	CN9
IDE interface LED	CN3	Serial port 2	CN10
Reset switch	CN4	Serial port 1	CN11
Turbo switch	CN5	Parallel port	CN12
Turbo LED	CN6	VGA port	CN13
External battery	CN7

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	On-board battery select	J1	pins 1 & 2 closed
	External battery enabled	J1	pins 2 & 3 closed
»	Monitor type select monochrome	JP2	Closed
	Monitor type select color	JP2	Open
»	CMOS normal operation	JP6	pins 1 & 2 closed
	CMOS memory clear	JP6	pins 3 & 4 closed
	Monitor in interlace mode	JP7	Closed
	Monitor in non-interlace mode	JP7	Open
	VGA display enabled	JP12	pins 2 & 3 closed
	VGA display disabled	JP12	pins 1 & 2 closed
	VESA monitor enabled	JP14	pins 1 & 2 closed
	VGA monitor enabled	JP14	pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1
512KB	(2) 256K x 9	NONE
1MB	(2) 256K x 9	(2) 256K x 9
2MB	(2) 1M x 9	NONE
4MB	(2) 1M x 9	(2) 1M x 9
8MB	(2) 4M x 9	NONE
16MB	(2) 4M x 9	(2) 4M x 9