128KB Cache 486 25MHz Motherboard Settings and Configuration

Processor	80486SX
Processor Speed	25MHz
Chip Set	OPTI
Max. Onboard DRAM	16MB
SRAM Cache	128KB (Factory configured)
BIOS	AMI
Dimensions	355.6mm x 304mm
I/O Options	None
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	J1	Reset switch	J4
Speaker	J2	External battery	J6

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select monochrome	JP1	pins 2 & 3 closed
	Monitor type select color	JP1	pins 1 & 2 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB 1	(4) 256K x 9	NONE	NONE	NONE
2MB 1	(4) 256K x 9	(4) 256K x 9	NONE	NONE
3MB 1	(4) 256K x 9	(4) 256K x 9	(4) 256K x 9	NONE
4MB 1	(4) 1M x 9	NONE	NONE	NONE
4MB 2	NONE	NONE	NONE	(36) 411000
5MB 1	(4) 256K x 9	(4) 1M x 9	NONE	NONE
5MB 1	(4) 1M x 9	(4) 256K x 9	NONE	NONE
6MB 1	(4) 256K x 9	(4) 256K x 9	(4) 1M x 9	NONE
6MB 1	(4) 256K x 9	(4) 1M x 9	(4) 256K x 9	NONE
6MB 1	(4) 1M x 9	(4) 256K x 9	(4) 256K x 9	NONE
7MB 2	(4) 256K x 9	(4) 256K x 9	(4) 256K x 9	(36) 411000
8MB 1	(4) 1M x 9	(4) 1M x 9	NONE	NONE
9MB 1	(4) 256K x 9	(4) 1M x 9	(4) 1M x 9	NONE
9MB 1	(4) 1M x 9	(4) 1M x 9	(4) 256K x 9	NONE
9MB 1	(4) 1M x 9	(4) 256K x 9	(4) 1M x 9	NONE
10MB 1	(4) 256K x 9	(4) 256K x 9	(4) 1M x 9	(36) 411000
10MB 2	(4) 1M x 9	(4) 256K x 9	(4) 256K x 9	(36) 411000
10MB 2	(4) 256K x 9	(4) 1M x 9	(4) 256K x 9	(36) 411000
12MB 1	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	NONE
13MB 1	(4) 256K x 9	(4) 1M x 9	(4) 1M x 9	(36) 411000
13MB 2	(4) 256K x 9	(4) 1M x 9	(4) 1M x 9	(36) 411000
13MB 1	(4) 1M x 9	(4) 256K x 9	(4) 1M x 9	(36) 411000
16MB 1	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	(36) 411000
16MB 2	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	(36) 411000
Note 1 :Set JP12 pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12, 13 & 14, 15 & 16 etc., closed.
Note 2 :Set JP12 pins 1 & 20, 2 & 19, 3 & 18, 4 & 17, 5 & 16, 6 & 15, 7 & 14, 8 & 13 etc., closed.