Processor	Motorola 68040
Processor Speed	66MHz
Chip Set	Unidentified
Video Chip Set	None
Maximum Onboard Memory	128MB
Maximum Video Memory	None
Cache	128KB
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	Floppy drive interface, SCSI interface, serial ports (2), VME bus connectors (2), I/O bus connectors (2), UPS switch contact port, Ethernet LEDs (3), Memory configuration LED, AM-191 boot module slot, AUI port
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
VME bus connector	CN1	I/O bus connector	J7
VME bus connector	CN2	I/O bus connector	J8
Serial port 1	J1	Floppy drive interface	J10
Serial port 2	J2	+5v chassis fan power	JX1
UPS switch contact port	J3	+12v chassis fan power	JX2
AUI port	J4	+5v chassis fan power	JY1
Front panel connector	J5	+12v chassis fan power	JY2
SCSI interface	J6	AM-191 boot module slot	SL1

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Remote reset disabled	W7	Open
	Remote reset enabled	W7	Closed
»	Timeout clock source select 1MHz	W8	Pins 2 & 3 closed
	Timeout clock source select 500KHz	W8	Pins 1 & 2 closed
»	Factory configured - do not alter	W9	Closed
»	Factory configured - do not alter	W11	Closed
»	Factory configured - do not alter	W12	Closed
»	Ethernet sonic chip select 1/2 BCLK	W13	Pins 1 & 2 closed
	Ethernet sonic chip select 1 BCLK	W13	Pins 2 & 3 closed
»	Factory configured - do not alter	W15	Closed
»	MMU enabled	W16/pins 1 & 2	Open
	MMU disabled	W16/pins 1 & 2	Closed
»	Factory configured - do not alter	W18	Open
»	Factory configured - do not alter	W19	Closed
»	80486 VPC disabled	W20	Open
	80486 VPC enabled	W20	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
4MB	(1) 1M x 36	None	None	None
8MB	(1) 1M x 36	(1) 1M x 36	None	None
12MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	None
16MB	(1) 4M x 36	None	None	None
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
20MB	(1) 4M x 36	(1) 1M x 36	None	None
24MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	None
28MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36

DRAM CONFIGURATION (CON'T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
32MB	(1) 8M x 36	None	None	None
32MB	(1) 4M x 36	(1) 4M x 36	None	None
36MB	(1) 8M x 36	(1) 1M x 36	None	None
40MB	(1) 8M x 36	(1) 1M x 36	(1) 1M x 36	None
44MB	(1) 8M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
48MB	(1) 8M x 36	(1) 4M x 36	None	None
48MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	None
64MB	(1) 8M x 36	(1) 4M x 36	(1) 4M x 36	None
64MB	(1) 8M x 36	(1) 8M x 36	None	None
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
80MB	(1) 8M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
96MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	None
112MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	(1) 4M x 36
128MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
Note: The location of banks 0, 1, 2 & 3 are unidentified. Do not install SIMM in SL1.

CACHE CONFIGURATION

Note: Board is factory installed with 128KB cache. The location is unidentified.

CACHE JUMPER CONFIGURATION (80486 CACHE)
Setting	W14
Enabled	Closed
Disabled	Open

CACHE JUMPER CONFIGURATION (68040 CACHE)
Setting	W16/pins 3 & 4
Enabled	Open
Disabled	Closed

SERIAL PORT 1 SELECTION
Setting		W1	W3	W5
»	RS232	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
	RS422	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed

SERIAL PORT 2 SELECTION
Setting		W2	W4	W6
»	RS232	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
	RS422	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed

MAIN BOOT SELECTION
Setting	SW1/5	SW1/6	SW1/7	SW1/8
Floppy	Off	Off	Off	Off
SCSI disk drive	Off	Off	Off	On
AM-520	Off	On	Off	Off

ALTERNATE BOOT SELECTION
Setting	SW1/1	SW1/2	SW1/3	SW1/4
None	Off	Off	Off	Off
Floppy	Off	Off	Off	On
VCR	Off	Off	On	On
SCSI streamer/DAT	Off	On	On	Off
AM-640 MagTape	Off	On	Off	Off

SCSI TERMINATION SELECTION
Setting		W10
»	SCSI termination enabled	Pins 2 & 3 closed
	SCSI termination disabled	Pins 1 & 2 closed

DIAGNOSTIC LED(S)

Note: Function of LEDs (CN3-CN6) are unidentified.