3000B 386/16/20 (EV-1864) Motherboard Settings and Configuration

3000B 386/16/20 (EV-1864)

Processor	80386SX
Processor Speed	20MHz
Chip Set	C & T
Max. onboard DRAM	8MB
Cache	None
BIOS	AMI
Dimensions	355mm x 304mm
I/O Options	None
NPU Options	80387SX

CONNECTIONS
Purpose	Location
External battery	J4

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	W1	Closed
»	8-bit-select 5 wait state	W2	pins 2 & 3 closed
	8-bit-select 4 wait state	W2	pins 1 & 2 closed
»	CPU speed select normal	W3	pins 2 & 3 closed
	CPU speed select high	W3	Open
	CPU speed select low	W3	pins 1 & 2 closed
»	16-bit select 2 wait state	W5	pins 1 & 2 closed
	16-bit select 1 wait state	W5	pins 2 & 3 closed
»	Factory configured - do not alter	W7	Open
»	Factory configured - do not alter	W8	Closed
»	Monitor type select color	W9	pins 1 & 2 closed
	Monitor type select monochrome	W9	pins 2 & 3 closed
Note:Exact location of W1 & W8 is unknown.

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3	W4	W6
1MB	(2) 256K x 9	(2) 256K x 9	NONE	NONE	pins 1 & 2	pins 1 & 2
2MB	(2) 256K x 9	(2) 256K x 9	(2) 256K x 9	(2) 256K x 9	pins 1 & 2	pins 1 & 2
2MB	(2) 1M x 9	NONE	NONE	NONE	pins 2 & 3	pins 2 & 3
4MB	(2) 1M x 9	(2) 1M x 9	NONE	NONE	pins 2 & 3	pins 2 & 3
6MB	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9	NONE	pins 2 & 3	pins 2 & 3
8MB	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9	pins 2 & 3	pins 2 & 3
Note:Pins designated should be in the closed position.