Processor	80486SX/80487SX/80486DX
Processor Speed	16/20/25/33MHz
Chip Set	Morse
Max. Onboard DRAM	16MB
Cache	64/128/256KB
BIOS	AMI/Award
Dimensions	220mm x 220mm
I/O Options	None
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	JP2	Turbo LED	JP16
Power LED & keylock	JP14	Speaker	JP17
Turbo switch	JP15	Reset switch	JP18

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Battery select internal 3.6VDC	JP4	Closed
	Battery select external 6VDC	JP4	Open
»	Parity check enabled	JP5	Closed
	Parity check disabled	JP5	Open
»	Monitor type select color	JP6	Closed
	Monitor type select monochrome	JP6	Open
»	CMOS memory normal operation	JP7	Open
	CMOS memory clear	JP7	Closed
»	Keyboard diagnostic disabled	JP19	Open
	Keyboard diagnostic enabled	JP19	Closed
Note:Locations of JP5, JP6, JP7, & JP19 are unidentified.

DRAM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(4) 256K x 9	NONE
2MB	(4) 256K x 9	(4) 256K x 9
4MB	(4) 1M x 9	NONE
5MB	(4) 256K x 9	(4) 1M x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
17MB	(4) 4M x 9	(4) 256K x 9
20MB	(4) 1M x 9	(4) 4M x 9
32MB	(4) 4M x 9	(4) 4M x 9

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG (U26)	TAG (U42)
64KB	(4) 8K x 8	(4) 8K x 8	(1) 8K x 8	NONE
128KB	NONE	(4) 32K x 8	(1) 8K x 8	NONE
256KB	(4) 32K x 8	(4) 32K x 8	(1) 8K x 8	(1) 8K x 8

SRAM JUMPER CONFIGURATION
Size	JP8A	JP8B	JP8D	JP8E	JP8F
64KB	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
128KB	1 & 2	1 & 2	1 & 2	1 & 2	2 & 3
256KB	2 & 3	1 & 2	2 & 3	1 & 2	1 & 2
Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	JP12	JP13	JP30
80486SX	Pins 2 & 3 closed	pins 2 & 3 closed	Open
80487SX	pins 1 & 2 closed	pins 1 & 2 closed	pins 2 & 3 closed
80486DX	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
Note:When changing the CPU, the Oscillator at Y2 must also be changed so that its speed is equal to twice the speed of the processor. e.g. A 25MHz CPU would require a 50MHz Oscillator.