COMPUSTAR II Motherboard Settings and Configuration

Processor	80286
Processor Speed	20MHz
Chip Set	C & T
Max. Onboard DRAM	8MB
SRAM Cache	None
BIOS	Award/Wells American
Dimensions	330mm x 127mm
I/O Options	Processor Interface Slot
NPU Options	80287

CONNECTIONS
Purpose	Location
Processor Interface Slot	S1

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
512KB	(2) 256K x 9	NONE	NONE	NONE
1MB	(2) 256K x 9	(2) 256K x 9	NONE	NONE
1.5MB	(2) 256K x 9	(2) 256K x 9	(2) 256K x 9	NONE
2MB	(2) 256K x 9	(2) 256K x 9	(2) 256K x 9	(2) 256K x 9
2MB	(2) 1M x9	NONE	NONE	NONE
3MB	(2) 1M x 9	(2) 256K x9	(2) 256K x 9	NONE
4MB	(2) 1M x 9	(2) 1M x 9	NONE	NONE
5MB	(2) 1M x9	(2) 1M x9	(2) 256K x 9	(2) 256K x 9
6MB	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9	NONE
8MB	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	IRQ12 select I/O channel	W1	pins 2 & 3 closed
	IRQ12 select mouse port	W1	pins 1 & 2 closed
»	Monitor type select color	W2	pins 2 & 3 closed
	Monitor type select monochrome	W2	pins 1 & 2 closed