Processor	80286
Processor Speed	12MHz
Chip Set	SMD
Max. Onboard DRAM	4MB
Cache	None
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	Serial ports (2)
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 2	J2	Power LED & keylock	J6
Serial port 1	J3	Reset switch	JP15
External battery	J4	Turbo LED	JP16
Speaker	J5	Turbo switch	JP18

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	CMOS memory normal operation	JBT	Closed
	CMOS memory clear	JBT	Open
»	Factory configured - do not alter	JP3	N/A
»	Monitor type select color	JP4	Closed
	Monitor type select monochrome	JP4	Open
»	Factory configured - do not alter	JP11	pins 2 & 3 closed
	BIOS type select EPROM	JP11	pins 1 & 2 closed
»	Factory configured - do not alter	JP17	pins 2 & 3 closed
	CPU speed select switchable at turbo switch	JP17	pins 1 & 2 closed
»	Factory configured - do not alter	JP19	pins 2 & 3 closed
	BIOS ROM select 27256	JP19	pins 1 & 2 closed
»	Factory configured - do not alter	SW1/1	N/A
»	Factory configured - do not alter	SW1/5	N/A
»	Bus speed select ATCLK/1	SW1/6	Off
	Bus speed select ATCLK/2	SW1/6	On
»	DMA speed select CPU/1	SW1/7	Off
	DMA speed select CPU/2	SW1/7	On
»	Factory configured - do not alter	SW1/8	N/A

DRAM CONFIGURATION
Size	Bank 0	Bank 1
512KB	(18) 41256	NONE
640KB	(18) 41256	(18) 4164
1MB	(18) 41256	(18) 41256
2MB	(18) 411000	NONE
4MB	(18) 411000	(18) 411000
Note:41256 and 4164 chips are placed in DIP socket pins 1 through 8 and 13 through 20. 411000 chips are placed in DIP socket pins 2 through 19. See upper right corner DIP socket on diagram for orientation.

DRAM SWITCH CONFIGURATION
Size	SW1/2	SW1/3	SW1/4
512KB	N/A	Off	Off
640KB	Off	On	Off
1MB	On	On	Off
2MB	N/A	Off	On
4MB	N/A	On	On

DRAM JUMPER CONFIGURATION
Size	JP21	JP22	JP23	JP24	JP25	JP26
512KB	2 & 3, 4 & 5	2 & 3, 4 & 5	2 & 3	2 & 3, 4 & 5	2 & 3	2 & 3, 4 & 5
640KB	2 & 3, 4 & 5	2 & 3, 4 & 5	2 & 3	2 & 3, 4 & 5	2 & 3	2 & 3, 4 & 5
1MB	2 & 3, 4 & 5	2 & 3, 4 & 5	2 & 3	2 & 3, 4 & 5	2 & 3	2 & 3, 4 & 5
2MB	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2	1 & 2, 3 & 4	1 & 2	1 & 2, 3 & 4
4MB	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2	1 & 2, 3 & 4	1 & 2	1 & 2, 3 & 4
Note:Pins designated should be in the closed position.

IRQ CONFIGURATION
Line	IRQ for Serial port 1	IRQ for Serial port 2
IRQ3	pins 2 & 3 closed	pins 1 & 2 closed
IRQ4	pins 5 & 6 closed	pins 4 & 5 closed
IRQ5	pins 8 & 9 closed	pins 7 & 8 closed
IRQ9	pins 11 & 12 closed	pins 10 & 11 closed
IRQ10	pins 14 & 15 closed	pins 13 & 14 closed
IRQ11	pins 17 & 18 closed	pins 16 & 17 closed
IRQ12	pins 20 & 21 closed	pins 19 & 20 closed
IRQ15	pins 23 & 24 closed	pins 22 & 23 closed

SERIAL PORT 1 CONFIGURATION
Setting	JP8	JP9	JP10
Ready signal normal	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
Ready signal forced active	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed

SERIAL PORT 2 CONFIGURATION
Setting	JP8	JP9	JP10
Ready signal normal	pins 1 & 2 closed	pins 1 & 2 closed	pins 2 & 3 closed
Ready signal forced active	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed

SERIAL PORT 1 CONFIGURATION
I/O Address	SW2/1	SW2/2	SW2/3
COM1	On	On	Off
COM2	On	Off	On
COM3	On	Off	Off
COM4	Off	On	On
COM5	Off	On	Off
COM6	Off	Off	On
COM7	Off	Off	Off

SERIAL PORT 2 CONFIGURATION
I/O Address	SW2/4	SW2/5	SW2/6
COM2	On	On	Off
COM3	On	Off	On
COM4	On	Off	Off
COM5	Off	On	On
COM6	Off	On	Off
COM7	Off	Off	On
COM8	Off	Off	Off