HED-986 (DIP VERSION) Motherboard Settings and Configuration

Processor	80286
Processor Speed	12/16/20MHz
Chip Set	Hedaka
Max. Onboard DRAM	2MB
Cache	None
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
Turbo LED	CN1	Auxiliary keyboard	CN7
Turbo switch	CN3	Power LED & keylock	CN9
Speaker	CN4	Speed display	CN12
Reset switch	CN5

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	JP8	pins 2 & 3 closed
	Monitor type select monochrome	JP8	pins 1 & 2 closed
»	NPU clock select internal oscillator	JP15	pins 2 & 3 closed
	NPU clock select external oscillator	JP15	pins 1 & 2 closed
»	NPU speed select OSC/1	JP14	pins 1 & 2 closed
	NPU speed select OSC/3	JP14	pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
512KB	(4) 44256	NONE	NONE	NONE
1MB	(4) 44256	(4) 44256	NONE	NONE
1.5MB	(4) 44256	(4) 44256	(4) 44256	NONE
2MB	(4) 44256	(4) 44256	(4) 44256	(4) 44256

DRAM PARITY CONFIGURATION
Size	P-0	P-1	P-2	P-3
512KB	(2) 41256	NONE	NONE	NONE
1MB	(2) 41256	(2) 41256	NONE	NONE
1.5MB	(2) 41256	(2) 41256	(2) 41256	NONE
2MB	(2) 41256	(2) 41256	(2) 41256	(2) 41256