Processor	80486SX/80487SX/80486DX/80486DX2
Processor Speed	20/25/33/40/50(internal)/50/66(internal)MHz
Chip Set	Unidentified
Video Chip Set	None
Maximum Onboard Memory	Unidentified
Maximum Video Memory	None
Cache	128/256KB
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	32-bit VESA local bus slots (2), floppy drive interface, IDE interface, SCSI interface, parallel port, PS/2 mouse port, serial ports (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 1	CO1	Chassis fan power	J9
Serial port 2	CO2	Front panel connector	J10
PS/2 mouse port	J2	Keyboard & PS/2 mouse connector	J11
External battery	J3	IDE interface LED	J12
SCSI interface	J6	Parallel port	PT1
Floppy drive interface	J7	32-bit VESA local bus slots	SL1 & SL2
IDE interface	J8

USER CONFIGURABLE SETTINGS
Function		Label	Position
	Password enabled	JP1	Pins 1 & 2 closed
	Password disabled	JP1	Pins 2 & 3 closed
»	Factory configured - do not alter	JP4	Open
»	Factory configured - do not alter	JP5	Open
	SCSI I/O address select 340h	JP6	Open
	SCSI I/O address select 140h	JP6	Closed
	MS105 enabled	JP7	Closed
	MS105 disabled	JP7	Open
	Parallel port bidirectional	JP8	Closed
	Parallel port unidirectional	JP8	Open
	Battery type select internal	JP9	Closed
	Battery type select external	JP9	Open
»	Factory configured - do not alter	JP12	Unidentified
»	Factory configured - do not alter	JP13	Unidentified
»	Factory configured - do not alter	JP14	Unidentified
	Reset button enabled	JP23	Closed
	Reset button disabled	JP23	Open
	Keylock enabled	JP24	Open
	Keylock disabled	JP24	Closed
»	Factory configured - do not alter	JX1	Unidentified

DRAM CONFIGURATION

Note: The maximum amount of memory is unidentified. Bank 0 is factory installed with 4MB memory.

DRAM JUMPER CONFIGURATION
Setting	JP15
On board 4MB enabled	Pins 2 & 3 closed
On board 4MB disabled	Pins 1 & 2 closed

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
128KB	(4) 32K x 8	None	(1) 32K x 8
256KB	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP20	JP21	JP22
128KB	Pins 1 & 2 closed	Closed	Open
256KB	Pins 2 & 3 closed	Open	Closed

CPU SPEED SELECTION
Speed	JP10
20MHz	Pins 1 & 6 closed
25MHz	Pins 2 & 7 closed
33MHz	Pins 3 & 8 closed
40MHz	Pins 4 & 9 closed
50iMHz	Pins 2 & 7 closed
50MHz	Pins 5 & 10 closed
66iMHz	Pins 3 & 8 closed

VL BUS WAIT STATE SELECTION
Setting		JP11
	0	Open
»	1	Closed

SCSI INTERRUPT SELECTION
IRQ	JP3
IRQ10	Pins 1 & 2 closed
IRQ11	Pins 2 & 3 closed
SCSI interface disabled	Open