G486PLB Motherboard Settings and Configuration

Processor	80486SX/80487SX/80486DX
Processor Speed	20/25/33/50MHz
Chip Set	OPTI
Max. Onboard DRAM	32MB
Cache	64/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	32-bit local bus VGA card slot
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Reset switch	J9	Power LED & keylock	J13
Turbo LED	J10	External battery	J14
Turbo switch	J11	32-bit VESA local bus slot	S1
Speaker	J12

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	JP1	Closed
	Monitor type select monochrome	JP1	Open
»	Power good signal detect from power supply	JP2	pins 1 & 2 closed
	Power good signal detect from board	JP2	pins 2 & 3 closed
»	CMOS memory normal operation	JP3	pins 2 & 3 closed
	CMOS memory clear	JP3	pins 1 & 2 closed
»	Factory configured - do not alter	JP10	pins 1 & 2 closed
»	Factory configured - do not alter	JP11	pins 1 & 2 closed
»	Factory configured - do not alter	JP12	pins 1 & 2 closed
»	Factory configured - do not alter	JP25	Open
»	Factory configured - do not alter	JP50	Open
»	VESA local bus enabled	JP100	Open
	VESA local bus disabled	JP100	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(4) 256K x 8	NONE
2MB	(4) 256K x 8	(4) 256K x 8
4MB	(4) 1M x 8	NONE
5MB	(4) 256K x 8	(4) 1M x 8
8MB	(4) 1M x 8	(4) 1M x 8
16MB	(4) 4M x 8	NONE
20MB	(4) 1M x 8	(4) 4M x 8
32MB	(4) 4M x 8	(4) 4M x 8

CACHE CONFIGURATION
Size	Bank 0	TAG
64KB	(8) 8K x 8	(1) 8K x 8
256KB	(8) 32K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP5	JP6	JP7	JP8	JP9
64KB	Open	Open	Open	Open	Open
256KB	Closed	Closed	Open	Closed	Open

CPU TYPE CONFIGURATION
Type	JP14	JP15	JP16
80486SX	Open	pins 2 & 3 closed	Open
80487SX	Closed	pins 1 & 2 closed	pins 1 & 2 closed
80486DX	Closed	pins 1 & 2 closed	pins 2 & 3 closed