Processor	80486SX/80487SX/80486DX
Processor Speed	16/20/25/33/50MHz
Chip Set	CONTAQ
Max. Onboard DRAM	32MB
Cache	64/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Keylock	J3 pins 1 & 2	Turbo switch	J3 pins 15 - 17
Power LED	J3 pins 3 - 5	Reset switch	J3 19 & 20
Speaker	J3 pins 7 - 10	Auxiliary keyboard	J4
Turbo LED	J3 pins 12 & 13	External battery	JP2

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	JP1	Closed
	Monitor type select monochrome	JP1	Open

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) 1M x 9	(4) 256K 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) 4M x 9	(4) 1M x 9
32MB	(4) 4M x 9	(4) 4M x 9

CACHE CONFIGURATION
Size	Bank 0	TAG
64KB	(8) 8K x 8	(1) 8K x 8
256KB	(8) 32K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP8
64KB	pins 1A & 2A closed, pins 3A & 4A closed, pins 1C & 2C closed, and pins 3C & 4C closed.
256KB	pins 1B & 2B closed, pins 3B & 4B closed, pins 1D & 2D closed, and pins 3D & 4D closed.

CPU TYPE CONFIGURATION
Type	Jumper block JP7
80486DX	pins 4A & 4B closed, pins 4C & 4D closed, pins 1A & 1B closed, and pins 1C & 1D closed.
80487SX	pins 4A & 4B closed, pins 4C & 4D closed, pins 2A & 2B closed, and pins 2C & 2D closed.
80486SX	pins 1B & 2B closed, pins 3B & 4B closed, pins 1D & 2D closed, and pins 3D & 4D closed.

CPU SPEED CONFIGURATION
CPU Speed	OSC1	JP3	JP5	JP6	JP9
16MHz	32MHz	2 & 3	Open	Open	1 & 2
20MHz	40MHz	1 & 2	Open	Open	1 & 2
25MHz	25MHz	1 & 2	Closed	Open	2 & 3
33MHz	33MHz	1 & 2	Open	Closed	2 & 3
50MHz	50MHz	1 & 2	Closed	Closed	2 & 3
Note: Pins designated should be in the closed position.