Processor	80486SX/80487SX/80486DX/80486DX2
Processor Speed	25/33/50(internal)/66(internal)MHz
Chip Set	Unidentified
Maximum Onboard Memory	64MB
Cache	256KB
BIOS	Unidentified
Dimensions	254mm x 218mm
I/O Options	Floppy drive interface, IDE interface, SCSI connector, parallel port, PS/2 mouse port, serial ports (2), VGA port, cache slot, riser slot
NPU Options	None

CONNECTIONS
Function	Label	Function	Label
Serial port 1	CN1	Floppy drive interface	CN8
Serial port 2	CN2	SCSI terminator	J1
VGA port	CN3	SCSI terminator	J2
Parallel port	CN4	Chassis fan power	J3
PS/2 mouse port	CN5	Speaker	J4
SCSI connector	CN6	Cache slot	SL1
IDE interface	CN7	Riser slot	SL2

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	SCSI terminators enabled	P5	Pins 1 & 2 closed
	SCSI terminators disabled	P5	Pins 2 & 3 closed
»	Password disabled	P7	Pins 1 & 2 closed
	Password enabled	P7	Pins 2 & 3 closed
»	Floppy drives not write protected	P8	Open
	Floppy drives write protected	P8	Closed
»	Serial ports and parallel port enabled	P9	Open
	Serial ports and parallel port disabled	P9	Closed
»	Serial port bootstrap enabled	P11	Open
	Serial port bootstrap disabled	P11	Closed
»	Floppy drive bootstrap enabled	P12	Closed
	Floppy drive bootstrap disabled	P12	Open
»	Factory configured - do not alter	SW1/5	Off
»	Factory configured - do not alter	SW1/6	Off
	BIOS update through utility	SW1/8	On
	BIOS write enabled	SW1/8	Off
Note: On jumper P7, if jumper is set on 1 & 2, move to 2 & 3. The jumper doesn’t have to be moved back to 1 & 2. The reverse is true if 2 & 3 are closed. Move to 1 & 2.

DRAM
Size	Bank 0	Bank 1
8MB	(2) 1M x 36	None
16MB	(2) 1M x 36	(2) 1M x 36
24MB	(2) 1M x 36	(2) 2M x 36
64MB	(2) 4M x 36	(2) 4M x 36

CACHE SIZE
Size	SL1
256KB	Installed

CPU SPEED
Setting	SW1/7
25MHz	On
33MHz	Off
50iMHz	On
66iMHz	Off

FLOPPY DRIVE A
Setting	SW1/1	SW1/2
1.44MB	On	On
2.88MB	Off	On
1.2MB/none installed	On	Off
80/120MB streaming tape	Off	Off

FLOPPY DRIVE B
Setting	SW1/3	SW1/4
1.44MB	On	On
2.88MB	Off	On
1.2MB/none installed	On	Off
80/120MB streaming tape	Off	Off

VIDEO MEMORY
Size	Bank 0
1MB	(4) 256K x 8