GA-486PA Motherboard Settings and Configuration

Processor	80486SX/80486DX/80486DX2
Processor Speed	16/20/25/33/50(internal)/50/66(internal)MHz
Chip Set	OPTi
Max. Onboard DRAM	32MB
Cache	64/128/256/512KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	J1	Turbo switch	J4
Reset switch	J2	Turbo LED	J5
Speaker	J3

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	J23	Closed
	Monitor type select monochrome	J23	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1
4MB	(4) 1M x 9	NONE
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
32MB	(4) 4M x 9	(4) 4M x 9

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
64KB	(4) 8K x 8	(4) 8K x 8	(2) 32K x 1
128KB	(4) 32K x 8	NONE	(2) 32K x 1
256KB	(4) 32K x 8	(4) 32K x 8	(2) 32K x 1
512KB	(4) 128K x 8	NONE	(2) 32K x 1

CACHE JUMPER CONFIGURATION
Size	JP8	JP17	JP18	JP19
64KB	pins 2 & 3 closed	Open	Open	Open
128KB	pins 1 & 2 closed	Closed	Open	Open
256KB	pins 2 & 3 closed	Closed	Closed	Open
512KB	pins 1 & 2 closed	Closed	Closed	Closed

CPU TYPE CONFIGURATION
Type	J7
80486SX	pins 1 & 2 closed
80486DX	pins 2 & 3 closed
80486DX2	pins 2 & 3 closed

CPU SPEED CONFIGURATION
Speed	J6
16MHz	Closed
20MHz	Closed
25MHz	Open
33MHz	Open
50iMHz	Open
50MHz	Open
66iMHz	Open