SYSTEM 316, SYSTEM 320LX Motherboard Settings and Configuration

Processor	80386SX
Processor Speed	16/20MHz
Chip Set	VLSI
Max. Onboard DRAM	8MB
SRAM Cache	None
BIOS	AMI
Dimensions	355mm x 304mm
I/O Options	Diagnostic test port, floppy drive interface, IDE interface parallel port, serial port (2)
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	BATT	Reset switch	JRES
Serial port 1	COM1	External keyboard	KEYBD
Serial port 2	COM2	Power LED & keylock	KLOCK
Floppy drive interface	FDC	Parallel port	LPT1
IDE interface	HDC	Speaker	SPKR
IDE interface LED	HDLED	Diagnostic test port	TEST

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	IRQ14 select driven to bus	JMPHD	pins 1 & 2 closed
	IRQ14 select buffered	JMPHD	pins 2 & 3 closed
»	IOCHRDY signal disabled	JMPRDY	open
	IOCHRDY signal from pin 21 enabled	JMPRDY	pins 1 & 2 closed
	IOCHRDY signal from pin 27 enabled	JMPRDY	pins 2 & 3 closed
»	NPU mode select synchronous with CPU	JMPNP	open
	NPU mode select asynchronous with CPU	JMPNP	closed
»	CMOS memory normal operation	MAINT	open
	CMOS memory clear	MAINT	closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(4) 256K x 9	NONE
2MB	(4) 256K x 9	(4) 256K x 9
4MB	(4) 1M x 9	NONE
5MB	(4) 256K x 9	(4) 1M x 9
8MB	(4) 1M x 9	(4) 1M x 9