80286 MAIN BOARD Motherboard Settings and Configuration

Processor	80286
Processor Speed	8/12/16MHz
Chip Set	UMC
Max. Onboard DRAM	4MB
Cache	None
BIOS	AMI
Dimensions	220mm x 220mm
I/O Options	None
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
Turbo LED	JP1	Reset switch	JP10
Power LED & keylock	JP4	Turbo switch	JP12
External battery	JP8	Speaker	JP13

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	BIOS type select 27128	JP2	pins 1 & 2 closed
	BIOS type select 27256	JP2	pins 2 & 3 closed
»	Monitor type select monochrome	JP3	pins 1 & 2 closed
	Monitor type select color	JP3	pins 2 & 3 closed
»	Battery type select internal	JP7	pins 2 & 3 closed
	Battery type select external	JP7	pins 1 & 2 closed
»	Power good signal detect from board	JP9	pins 2 & 3 closed
	Power good signal detect from power supply	JP9	pins 1 & 2 closed
»	Turbo switch disabled	JP12	Closed
	Turbo switch enabled	JP12	Open
»	Parity check disabled	JP14	pins 2 & 3 closed
	Parity check enabled	JP14	pins 1 & 2 closed

DRAM CONFIGURATION (SIPP MEMORY)
Size	Bank 0	Bank 1
512KB	(2) 256K x 9	NONE
1MB	(2) 256K x 9	(2) 256K x 9
2MB	(2) 1M x 9	NONE
4MB	(2) 1M x 9	(2) 1M x 9

DRAM CONFIGURATION (DIP MEMORY)
Size	Bank 0A	Parity A	Bank 1B	Parity B
512KB	(4) 44256	(2) 41256	NONE	NONE
640KB	(4) 44256	(2) 41256	(4) 4464	(2) 4164
1MB	(4) 44256	(2) 41256	(4) 44256	(2) 41256

DRAM CONFIGURATION (DIP & SIMM MEMORY)
Size	Bank 0	Bank 1	Bank 0A	Parity A	Bank 1B	Parity B
640KB	(2) 256K x 9	NONE	(4) 4464	(2) 4164	NONE	NONE

DRAM SWITCH CONFIGURATION
Size	SW1/1	SW1/2	SW1/3
512KB (SIPP)	On	On	Off
512KB (DIPP)	On	On	On
640KB	On	Off	Off
1MB	On	Off	On
2MB	Off	On	On
4MB	Off	Off	On

DRAM WAIT STATE CONFIGURATION
Wait states	SW1/4
0 wait states	Off
1 wait state	On