JOY 286-12 Motherboard Settings and Configuration

Processor	80286
Processor Speed	12MHz
Chip Set	None
Max. Onboard DRAM	1MB
Cache	None
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED (+5V)	J1 pin 1	Keylock	J1 pin 7
Slow LED (+5V)	J1 pin 2	VCC	J1 pin 11
Fast LED (-5V)	J1 pin 3	Speaker	J2
Reset switch	J1 pin 6	External battery	J4
GND	J1 pins 5, 8, 9, 15, & 16

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	Monitor type select monochrome	SW1/1	Open
	Monitor type select color	SW1/1	Closed
»	Factory configured - do not alter	W1	N/A
»	8-bit bus slot access 6 wait states	W2	pins 5 & 6 closed
	8-bit bus slot access 5 wait states	W2	pins 3 & 4 closed
	8-bit bus slot access 4 wait states	W2	pins 1 & 2 closed
»	16-bit bus slot access 2 wait states	W3	pins 5 & 6 closed
	16-bit bus slot access 1 wait states	W3	pins 7 & 8 closed
	16-bit bus slot access 3 wait states	W3	pins 3 & 4 closed
	16-bit bus slot access 4 wait states	W3	pins 1 & 2 closed
»	Factory configured - do not alter	W4	N/A
»	Factory configured - do not alter	W5	N/A
»	Factory configured - do not alter	W6	pins 1 & 2 open
»	Factory configured - do not alter	W6	pins 5 & 6 open
»	Factory configured - do not alter	W6	pins 7 & 8 closed
»	Factory configured - do not alter	W7	pins 2 & 3 closed
»	Factory configured - do not alter	W8	pins 2 & 3 closed

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

DRAM JUMPER CONFIGURATION
Size	W6
512KB	pins 3 & 4 closed
1MB	pins 3 & 4 open