80386SX MOTHERBOARD Motherboard Settings and Configuration

Processor	80386SX
Processor Speed	16MHz
Chip Set	NEAT
Max. Onboard DRAM	8MB
Cache	None
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	80387SX

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

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Turbo enabled	J3	pins 1 & 2 closed
	Turbo disabled	J3	pins 2 & 3 closed
»	Battery type select internal	J6	pins 1 & 2 closed
	Battery type select external	J6	Closed
	CMOS memory clear	J6	pins 3 & 4 closed
»	Pipeline enabled	JP3	Closed
	Pipeline disabled	JP3	Open
»	NPU asynchronous with CPU	JP4	Closed
	NPU synchronous with CPU	JP4	Open
	NPU enabled	JP5	Closed
	NPU disabled	JP5	Open
»	Clock select 80386SX clock 2	JP6	pins 2 & 3 closed
	Clock select 80387SX clock 2	JP6	pins 1 & 2 closed
»	BIOS type select 27256	JP7	pins 1 & 2 closed
	BIOS type select 27128	JP7	pins 2 & 3 closed
»	Monitor type select monochrome	JP8	pins 2 & 3 closed
	Monitor type select color/EGA/VGA	JP8	pins 1 & 2 closed
»	BIOS pin select 23 pin	JP9	pins 1 & 2 closed
	BIOS pin select 30 pin	JP9	pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
512KB	(2) 256K x 9	NONE	NONE	NONE
512KB	NONE	NONE	(18) 41256	NONE
1MB	(2) 256K x 9	(2) 256K x 9	NONE	NONE
1MB	NONE	NONE	(18) 41256	(18) 41256
1.5MB	(2) 256K x 9	(2) 256K x 9	(18) 41256	NONE
1.5MB	(2) 256K x 9	NONE	(18) 41256	(18) 41256
2MB	(2) 256K x 9	(2) 256K x 9	(18) 41256	(18) 41256
2MB	(2) 1M x 9	NONE	NONE	NONE
2MB	NONE	NONE	(18) 411000	(18) 411000
4MB	(2) 1M x 9	(2) 1M x 9	NONE	NONE
4MB	(2) 1M x 9	NONE	(18) 411000	(18) 411000
5MB	(2) 1M x 9	(2) 1M x 9	(18) 41256	(18) 41256
5MB	(2) 1M x 9	(2) 1M x 9	(18) 411000	NONE
5MB	(2) 1M x 9	(2) 1M x 9	(18) 41256	(18) 41256
6MB	(2) 1M x 9	(2) 1M x 9	(18) 411000	(18) 411000
6MB	(2) 1M x 9	(2) 1M x 9	(18) 411000	(18) 411000
8MB	(2) 4M x 9	(2) 4M x 9	NONE	NONE

DRAM JUMPER CONFIGURATION
Size	JP1	JP2
512KB	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12
512KB	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7
1MB	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12
1MB	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7
1.5MB	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12
1.5MB	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7
2MB	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12
2MB	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12
2MB	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7
4MB	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12
4MB	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7
5MB	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12
5MB	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12
5MB	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7
6MB	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12
6MB	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7	1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7
8MB	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12
Note: Pins designated should be in the closed position.