Processor	80486SX/80487SX/80486DX
Processor Speed	25/33MHz
Chip Set	Unidentified
Video Chip Set	Unidentified
Maximum Onboard Memory	32MB
Maximum Video Memory	1MB
Cache	128KB
BIOS	Unidentified
Dimensions	254mm x 218mm
I/O Options	AUI connector, Twisted Pair connector, floppy drive interface, SCSI interface, parallel port, PS/2 mouse port, serial ports (3), VGA feature connector, VGA port, riser slot
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Floppy drive interface	CN2	PS/2 mouse port	J8
Serial port 1	J1	VGA port	J16
Power connector	J2	Twisted Pair connector	J17
Serial port	J4	AUI connector	J18
Serial port	J4A	VGA feature connector	J20
Parallel port	J6A	Riser slot	SL1
SCSI interface	J6B

USER CONFIGURABLE SETTINGS
Function		Label	Position
?	Floppy drive write protect disabled	J3	Pins 4 & 6 closed
	Floppy drive write protect enabled	J3	Pins 2 & 4 closed
?	Factory configured - do not alter	J10	Unidentified
?	On board video enabled	J19	Pins 2 & 4 closed
	On board video disabled	J19	Pins 4 & 6 closed
?	Password normal operation	J21	Pins 4 & 6 closed
	Password clear	J21	Pins 2 & 4 closed
?	CMOS memory normal operation	J21	Pins 11 & 13 closed
	CMOS memory clear	J21	Pins 9 & 11 closed
?	Flash BIOS normal operation	J21	Pins 10 & 12 closed
	Flash BIOS recovery mode	J21	Pins 12 & 14 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 36	None	None	None
2MB	(1) 512K x 36	None	None	None
2MB	(1) 256K x 36	(1) 256K x 36	None	None
4MB	(1) 1M x 36	None	None	None
4MB	(1) 512K x 36	(1) 512K x 36	None	None
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
8MB	(1) 2M x 36	None	None	None
8MB	(1) 1M x 36	(1) 1M x 36	None	None
8MB	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
16MB	(1) 2M x 36	(1) 2M x 36	None	None
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
32MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36

CACHE CONFIGURATION
Size	CN3
None	Not installed
128KB	Intel 485 TurboCache module installed

VIDEO MEMORY CONFIGURATION
Size	Bank 0	Bank 1
512KB	512KB	None
1MB	512KB	(4) 256K x 4
Note: Bank 0 is factory installed and is not configurable. The location is unidentified.

VIDEO MEMORY JUMPER CONFIGURATION
Size	J19
512KB	Pins 1 & 3 closed
1MB	Pins 3 & 5 closed

FLASH BIOS CONFIGURATION
Setting		J5	J21
»	Write protect disabled	Pins 2 & 4 closed	Pins 1 & 3 closed
	Write protect enabled	Pins 4 & 6 closed	Pins 3 & 5 closed