TOP-286 Motherboard Settings and Configuration

Processor	80286
Processor Speed	12/16/20MHz
Chip Set	C & T NEAT
Max. Onboard DRAM	8MB
Cache	None
BIOS	AMI
Dimensions	330mm x 220mm
I/O Options	None
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J2	Turbo switch	J8 or J13
Reset switch	J6 or J12	Speaker	J9
Power LED & keylock	J7	Turbo LED	J10

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Battery type select internal	J1	pins 2 & 3 closed
	Battery type select external	J1	pins 1 & 2 closed
»	Monitor type select color	J3	pins 1 & 2 closed
	Monitor type select monochrome	J3	pins 2 & 3 closed
»	CPU speed select 16MHz	J4	pins 1 & 2 closed
	CPU speed select 12MHz	J4	pins 2 & 3 closed
»	I/O bus speed select 8MHz	J5	pins 1 & 2 closed
	I/O bus speed select 10MHz	J5	pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
512KB	(18) 41256	NONE	NONE	NONE
640KB	(18) 4164	(18) 41256	NONE	NONE
1MB	(18) 41256	(18) 41256	NONE	NONE
1.5MB	(18) 41256	(18) 41256	(2) 256K x 9	NONE
1.64MB	(18) 4164	(18) 41256	(2) 256K x 9	(2) 256K x 9
2MB	(18) 41256	(18) 41256	(2) 256K x 9	(2) 256K x 9
2MB	(18) 411000	NONE	NONE	NONE
3MB	(18) 41256	(18) 41256	(2) 1M x 9	NONE
4MB	(18) 411000	(18) 411000	NONE	NONE
4.64MB	(18) 4164	(18) 41256	(2) 1M x 9	(2) 1M x 9
5MB	(18) 41256	(18) 41256	(2) 1M x 9	(2) 1M x 9
6MB	(18) 411000	(18) 411000	(2) 1M x 9	NONE
8MB	(18) 411000	(18) 411000	(2) 1M x 9	(2) 1M x 9

DRAM JUMPER CONFIGURATION
Type	J11
DIP memory only	pins 1 & 2 closed
DIP and SIPP memory	pins 2 & 3 closed