80386DX-SC (REV. B) Motherboard Settings and Configuration

Processor	80386DX
Processor Speed	25/33/50MHz
Chip Set	Symphony
Max. Onboard DRAM	32MB
Cache	32/64/128/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	80387/3167

CONNECTIONS
Purpose	Location	Purpose	Location
Speaker	JP1	Turbo switch	JP10
Reset switch	JP2	Turbo LED	JP11
Power LED & keylock	JP5

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select monochrome/EGA/VGA	JP6	Open
	Monitor type select color	JP6	Closed
»	Cache select 1 wait state	JP33	pins 2 & 3 closed
	Cache select 0 wait states	JP33	pins 1 & 2 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
5MB	(4) 1M x 9	(4) 256K x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
17MB	(4) 4M x 9	(4) 256K x 9
20MB	(4) 4M x 9	(4) 1M x 9
32MB	(4) 4M x 9	(4) 4M x 9

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

CACHE RESISTOR CONFIGURATION
Size	RJ1	RJ2	RJ3	RJ4
32KB	Installed	Not installed	Installed	Not installed
64KB	Not installed	Installed	Not installed	Installed
128KB	Not installed	Not installed	Not installed	Not installed
256KB	Not installed	Not installed	Not installed	Not installed

CACHE RESISTOR CONFIGURATION (CON’T)
Size	RJ5	RJ6	RJ7	RJ8
32KB	Not installed	Not installed	Not installed	Not installed
64KB	Not installed	Not installed	Not installed	Not installed
128KB	Installed	Not installed	Installed	Not installed
256KB	Not installed	Installed	Not installed	Installed