SYSTEM 4XX/P NETPLEX Motherboard Settings and Configuration

Processor	80486SX/80486DX/80486DX2
Processor Speed	25/33/50(internal)/50/66(internal)MHz
Chip Set	SIS
Max. Onboard DRAM	32MB
Cache	128KB
BIOS	Phoenix
Dimensions	330mm x 218mm
I/O Options	Bus mouse port, floppy drive interface, IDE interface, parallel port, riser card slot, serial ports (2), VGA feature connector, VGA port
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Bus mouse port	CN1	VGA feature connector	CN6
Serial port 1	CN2	IDE interface LED	CN7
Serial port 2	CN3	Floppy drive interface	CN8
Parallel port	CN4	IDE interface LED	JP5
VGA port	CN5	Riser card slot	S1

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	VGA IRQ9 disabled	JP1	Open
	VGA IRQ9 enabled	JP1	Closed
»	Monitor type select color	JP2	Closed
	Monitor type select monochrome	JP2	Open
»	Password enabled	JP7	Closed
	Password disabled	JP7	Open

PARALLEL PORT CONFIGURATION
Port	JP6
LPT 1/IRQ7	pins 1 & 2 closed
LPT 1/IRQ5	pins 2 & 3 closed
LPT 3/IRQ7	pins 1 & 2 closed
Disabled	Open

DRAM CONFIGURATION
Size	Bank 1	Bank 2
4MB	(1) 1M x 36	NONE
5MB	(1) 1M x 36	(1) 256K x 36
8MB	(1) 1M x 36	(1) 1M x 36
16MB	(1) 4M x 36	NONE
17MB	(1) 4M x 36	(1) 256K x 36
20MB	(1) 4M x 36	(1) 1M x 36
32MB	(1) 4M x 36	(1) 4M x 36

VIDEO RAM CONFIGURATION
Size	Bank 0	Bank 1
512KB	(4) 256KB x 4	NONE
1MB	(4) 256KB x 4	(4) 256KB x 4
Note:Bank 0 is factory installed and is not configurable.

CPU SPEED CONFIGURATION
CPU speed	JP3
25MHz	Closed
33MHz	Open
50iMHz	Closed
66iMHz	Open

CPU TYPE SELECT
CPU type	JP4 A-C	JP4D-F	JP4G-I
80486SX	Closed	Open	Open
80487SX	Open	Open	Closed
80486DX	Open	Closed	Open
80486DX2	Open	Closed	Open