U386 Motherboard Settings and Configuration

Processor	80386DX
Processor Speed	33/40MHz
Chip Set	OPTI
Max. Onboard DRAM	32MB
SRAM Cache	32/128KB
BIOS	AMI
Dimensions	220mm x 220mm
I/O Options	NONE
NPU Options	80387

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J1	Reset switch	J4
Turbo LED	J2	Speaker	J5
Turbo switch	J3	Power LED & keylock	J6

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	CMOS memory normal operation	W1	closed
	CMOS memory clear	W1	open
»	Monitor type select color	W2	closed
	Monitor type select monochrome	W2	open
»	NPU disabled	W4	open
	NPU enabled	W4	closed
»	Parity check enabled	W16	pins 2 & 3 closed
	Parity check disabled	W16	pins 1 & 2 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(4) 256K x 9	NONE
4MB	(4) 1M x 9	NONE
5MB	(4) 256K x 9	(4) 1M x 9
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 JUMPER CONFIGURATION
Jumper	32KB	128KB
W8	pins 1 & 2 closed	pins 2 & 3 closed
W9	pins 1 & 2 closed	pins 2 & 3 closed
W10	pins 1 & 2 closed	pins 2 & 3 closed
W11	pins 1 & 2 closed	pins 2 & 3 closed
W12	pins 2 & 3 closed	pins 2 & 3 closed
W13	pins 1 & 2 closed	pins 1 & 2 closed
W14	pins 1 & 2 closed	pins 1 & 2 closed
W15	open	pins 1 & 2 closed

SRAM CONFIGURATION
Size	Cache SRAM	TAG
32KB	(4) 8K x 8	(1) 8K x 8
128KB	(4) 32K x 8	(1) 8K x 8