ELT-286B-120GM Motherboard Settings and Configuration

Processor	80286
Processor Speed	10/12MHz
Chip Set	G-2
Max. Onboard DRAM	4MB
Cache	None
BIOS	AMI/Phoenix
Dimensions	220mm x 220mm
I/O Options	None
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
Turbo LED	J5	External battery	J24
Power LED & keylock	J18	Turbo switch	J25
Speaker	J19	Reset switch	J30

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	Factory configured - do not alter	DSW1/1	N/A
»	NPU mode select synchronous with CPU	JNP	pins 1 & 2 closed
	NPU mode select asynchronous with CPU	JNP	pins 2 & 3 closed
»	Wait state select CTRL-ALT-0 = 0 wait, CTRL-ALT-1 is 1 wait	JP2	pins 1 & 2 closed
	Wait states select zero	JP2	pins 2 & 3 closed
	Wait state select one	JP2	Open
»	Factory test disabled	JP22	Open
	Factory test enabled	JP22	Closed
»	CPU speed select switchable from keyboard	JP25	Open
	CPU speed select fast	JP25	Closed
»	Factory configured - do not alter	JPX	N/A

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3	Bank 4	Bank 5
256KB	(4) 44256	(2) 41256	NONE	NONE	NONE	NONE
256KB	NONE	NONE	NONE	NONE	(2) 256K x 9	NONE
512KB	(4) 44256	(2) 41256	NONE	NONE	NONE	NONE
512KB	NONE	NONE	NONE	NONE	(2) 256K x 9	NONE
640KB	(4) 44256	(2) 41256	(4) 4464	(4) 4164	NONE	NONE
640KB	NONE	NONE	(4) 4464	(4) 4164	(2) 256K x 9	NONE
1MB	(4) 44256	(2) 41256	(4) 44256	(2) 41256	NONE	NONE
1MB	NONE	NONE	NONE	NONE	(2) 256K x 9	(2) 256K x 9
2MB	NONE	NONE	NONE	NONE	(2) 1M x 9	NONE
4MB	NONE	NONE	NONE	NONE	(2) 1M x 9	(2) 1M x 9

DRAM SWITCH CONFIGURATION
Size	DSW1/2	DSW1/3	DSW1/4
256KB	On	On	On
512KB	On	On	Off
640KB	On	Off	On
1MB	On	Off	Off
2MB	Off	Off	On
4MB	Off	Off	Off