Processor	80486SX/80487SX/80486DX
Processor Speed	33/50MHz
Chip Set	Unidentified
Max. Onboard DRAM	32MB
Cache	32/64/128/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Reset switch	JP1	Turbo switch	JP4
Speaker	JP2	Turbo LED	JP5
Power LED & keylock	JP3	External battery	JP25

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	CPU speed select 33MHz	JP19	pins 2 & 3 closed
	CPU speed select 50MHz	JP19	pins 1 & 2 closed
»	Factory configured - do not alter	JP20	Closed
»	Monitor type select color	JP26	Closed
	Monitor type select monochrome	JP26	Open
»	CMOS memory normal operation	JP27	pins 1 & 2 closed
	CMOS memory clear	JP27	pins 2 & 3 closed

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
20MB	(4) 1M x 9	(4) 4M x 9
32MB	(4) 4M x 9	(4) 4M x 9

CACHE CONFIGURATION
Size	Cache	Location	TAG SRAM	Location
32KB	(4) 8K x 8	U2,U4,U8 & U10	(4) 16K x 4	U6,U12,U13 & U17
64KB	(8) 8K x 8	ALL	(3) 16K x 4	U6,U13 & U17
128KB	(4) 32K x 8	U2,U4,U8 & U10	(3) 16K x 4	U6,U13 & U17
256KB	(8) 32K x 8	ALL	(3) 16K x 4	U6,U13 & U17

CACHE JUMPER CONFIGURATION
Size	JP6	JP7	JP10	JP11	JP12
32KB	2 & 3	Open	1 & 2	1 & 2	1 & 2
64KB	1 & 2	Open	1 & 2	1 & 2	2 & 3
128KB	2 & 3	1 & 2	2 & 3	1 & 2	2 & 3
256KB	1 & 2	2 & 3	2 & 3	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	JP14	JP17	JP18	JP21
80486SX	pins 2 & 3 closed	Open	Open	Closed
80487SX	pins 1 & 2 closed	pins 2 & 3 closed	Closed	Open
80486DX	pins 1 & 2 closed	pins 1 & 2 closed	Closed	Open