System 425E/433E Motherboard Settings and Configuration

Processor	80486DX
Processor Speed	25/33MHz
Chip Set	VLSI
Max. Onboard DRAM	32MB
Cache	None
BIOS	AMI
Dimensions	353mm x 291mm
I/O Options	Parallel port, serial ports (2)
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port one	COM1	Power LED & keylock	KYLCK
Serial port two	COM2	Parallel port	LPT1
Reset switch	J20	Speaker	SPKR
Keyboard	KBD

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	JM2	Open
»	Monitor type select color	JM4	pins 2 & 3 closed
	Monitor type select monochrome	JM4	pins 1 & 2 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
2MB	(2) 256K x 36	NONE	NONE	NONE
4MB	(2) 256K x 36	(2) 256K x 36	NONE	NONE
6MB	(2) 256K x 36	(2) 256K x 36	(2) 256K x 36	NONE
8MB	(2) 256K x 36	(2) 256K x 36	(2) 256K x 36	(2) 256K x 36
8MB	(2) 1M x 36	NONE	NONE	NONE
10MB	(2) 1M x 36	(2) 256K x 36	NONE	NONE
12MB	(2) 1M x 36	(2) 256K x 36	(2) 256K x 36	NONE
14MB	(2) 1M x 36	(2) 256K x 36	(2) 256K x 36	(2) 256K x 36
16MB	(2) 1M x 36	(2) 1M x 36	NONE	NONE
18MB	(2) 1M x 36	(2) 1M x 36	(2) 256K x 36	NONE
20MB	(2) 1M x 36	(2) 1M x 36	(2) 256K x 36	(2) 256K x 36
24MB	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36	NONE
28MB	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36	(2) 256K x 36
32MB	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36

DRAM JUMPER CONFIGURATION
Size	J26A	J26B	J26C	J26D
2MB	Closed	N/A	N/A	N/A
4MB	Closed	Closed	N/A	N/A
6MB	Closed	Closed	Closed	N/A
8MB	Closed	Closed	Closed	Closed
8MB	Open	N/A	N/A	N/A
10MB	Open	Closed	N/A	N/A
12MB	Open	Closed	Closed	N/A
14MB	Open	Closed	Closed	Closed
16MB	Open	Open	N/A	N/A
18MB	Open	Open	Closed	N/A
20MB	Open	Open	Closed	Closed
24MB	Open	Open	Open	N/A
28MB	Open	Open	Open	Closed
32MB	Open	Open	Open	Open