VL/ISA-486SV2 VERSION 2.5 Motherboard Settings and Configuration

Processor	80486SX/80487SX/80486DX/ODP487SX/80486DX2
Processor Speed	20/25/33/50(internal)/50/66(internal)MHz
Chip Set	SIS
Max. Onboard DRAM	32MB
SRAM Cache	64/128/256KB
BIOS	AMI
Dimensions	220mm x 240mm
I/O Options	32-bit VESA local bus slots (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	BCON1	Speaker	CON4
Turbo switch	CON1	Power LED & keylock	CON5
Turbo LED	CON2	32-bit VESA card (2)	S1 & S2
Reset	CON3

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Battery select internal	BJP1	pins 1 & 2 closed
	Battery select external	BJP1	pins 2 & 3 closed
»	Monitor type select monochrome	JP2	pins 1 & 2 closed
	Monitor type select color	JP2	pins 2 & 3 closed
»	Factory configured - do not alter	TP2	closed
»	Factory configured - do not alter	TP5	open
»	Factory configured - do not alter	TP6	closed
»	Factory configured - do not alter	TP7	open
»	Factory configured - do not alter	TP13	pins 1 & 2 closed
»	Factory configured - do not alter	TP14	pins 2 & 3 closed
»	Factory configured - do not alter	TP15	pins 2 & 3 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
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
20MB	(4) 4M x 9	(4) 1M x 9
32MB	(4) 4M x 9	(4) 4M x 9

SRAM CONFIGURATION
Size	Cache	Location	TAG
64KB	(8) 8K x 8	Banks 0 & 1	(1) 8K x 8
128KB	(4) 32K x 8	Bank 0	(1) 8K x 8
256KB	(8) 32K x 8	Banks 0 & 1	(1) 32K x 8

SRAM JUMPER CONFIGURATION
Size	Jumper CJ1	Jumper CJ2	Jumper CJ3
64KB	pins 1 & 2 closed	pins 1 & 2 closed	open
128KB	pins 2 & 3 closed	open	closed
256KB	pins 2 & 3 closed	pins 2 & 3 closed	open

CPU JUMPER CONFIGURATION
CPU	Jumper CPJ1	Jumper CPJ2	Jumper CPJ3
80486DX	pins 2 & 3 closed	pins 1 & 2 and 3 & 4 closed	pins 2 & 3 closed
80487SX	pins 1 & 2 closed	pins 1 & 2 and 3 & 4 closed	pins 1 & 2 closed
80486SX	open	pins 2 & 3 closed	pins 2 & 3 closed

CPU SPEED CONFIGURATION
Speed	Jumper CS1	Jumper CS2	Jumper CS3	Jumper JP1
25MHz	pins 1 & 2 closed	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
33MHz	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed
40MHz	pins 1 & 2 closed	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed
50MHz	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed	pins 1 & 2 closed