Processor	80386SX/CX486SLC
Processor Speed	25/33/40MHz
Chip Set	ALI
Video Chip Set	Cirrus Logic
Maximum Onboard Memory	16MB
Maximum Video Memory	1MB
Cache	None
BIOS	AMI
Dimensions	220mm x 220mm
I/O Options	Floppy drive interface, IDE interface, game port, parallel port, serial ports (2), VGA connector, riser slot
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
VGA port	CN1	Turbo LED	J1
Parallel port	CN2	Turbo switch	J2
Serial port 2	CN3	IDE interface LED	J3
Auxiliary keyboard connector	CN4	Reset switch	J4
Serial port 1	CN5	Speaker	J5
IDE interface	CN6	Power LED & keylock	J6
Floppy drive interface	CN7	External battery	JP6
Game port	CN11	LED connector	JP33
VGA connector	CN35	Riser slot	SL1

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured – do not alter	CN33	Unidentified
	Monitor type select color	JP5	Open
	Monitor type select monochrome	JP5	Closed
»	CMOS memory normal operation	JP7	Open
	CMOS memory clear	JP7	Closed
»	Serial port 1 enabled	JP9	Pins 1 & 2 closed
	Serial port 1 disabled	JP9	Pins 2 & 3 closed
»	Parallel port enabled	JP10	Pins 1 & 2 closed
	Parallel port disabled	JP10	Pins 2 & 3 closed
»	IDE interface enabled	JP11	Pins 1 & 2 closed
	IDE interface disabled	JP11	Pins 2 & 3 closed
»	Serial port 1 address select 3F8H – 3FFH	JP12	Pins 1 & 2 closed
	Serial port 1 address select 3E8H – 3EFH	JP12	Pins 2 & 3 closed
»	Floppy drive interface enabled	JP13	Pins 1 & 2 closed
	Floppy drive interface disabled	JP13	Pins 2 & 3 closed
»	HDC enabled	JP14	Pins 2 & 3 closed
	HDC disabled	JP14	Pins 1 & 2 closed
»	Parallel port address select 378H – 37FH	JP15	Pins 1 & 2 closed
	Parallel port address select 278H – 27FH	JP15	Pins 2 & 3 closed
»	Serial port 2 enabled	JP16	Pins 1 & 2 closed
	Serial port 2 disabled	JP16	Pins 2 & 3 closed
»	Game port enabled	JP17	Pins 1 & 2 closed
	Game port disabled	JP17	Pins 2 & 3 closed
»	Serial port 2 address select 2F8H – 2FFH	JP18	Pins 1 & 2 closed
	Serial port 2 address select 2E8H – 2EFH	JP18	Pins 2 & 3 closed
	IRQ9 enabled	JP26	Closed
	IRQ9 disabled	JP26	Open
»	NPU synchronous with CPU	JP27	Pins 1 & 2 closed
	NPU asynchronous with CPU	JP27	Pins 2 & 3 closed
»	On board video enabled	JP36	Pins 1 & 2 closed
	On board video disabled	JP36	Pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1
512KB	(2) 256K x 9	None
1MB	(2) 256K x 9	(2) 256K x 9
2MB	(2) 1M x 9	None
4MB	(2) 1M x 9	(2) 1M x 9
8MB	(2) 4M x 9	None
16MB	(2) 4M x 9	(2) 4M x 9
Note: The location of banks 0 & 1 is unidentified.

VIDEO MEMORY CONFIGURATION

Note: Board accepts 256KB/512KB/1MB video memory. The size of the chips is unidentified.