Processor	80486DX
Processor Speed	25/33MHz
Chip Set	UMC
Max. Onboard DRAM	48MB
Cache	32/64/128/256KB
BIOS	AMI
Dimensions	330mm x 220mm
I/O Options	32-bit external memory card
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Auxiliary keyboard	J1	Speaker	J5
Reset switch	J2 and J31	Power LED & keylock	J6
Turbo LED	J3	External battery	J33
Turbo switch	J4 and J32	32-bit external memory card	S1

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	NPU enabled	J12	Closed
	NPU disabled	J12	Open
»	Factory configured - do not alter	J13	pins 2 & 3 closed
»	Factory configured - do not alter	J18	pins 1 & 2 closed
»	Factory configured - do not alter	J19	Closed
»	Factory configured - do not alter	J20	Closed
»	Factory configured - do not alter	J21	Closed
»	Factory configured - do not alter	J22	pins 1 & 2 closed
»	Factory configured - do not alter	J23	pins 1 & 2 closed
»	Factory configured - do not alter	J24	pins 1 & 2 closed
»	Factory configured - do not alter	J25	pins 2 & 3 closed
»	Factory configured - do not alter	J26	pins 1 & 2 closed
»	Factory configured - do not alter	J27	pins 1 & 2 closed
»	Factory configured - do not alter	J28	Closed
»	Battery type select internal	J29	pins 2 & 3 closed
	Battery type select external	J29	pins 1 & 2 closed
»	Monitor type select color	J30	Closed
	Monitor type select monochrome	J30	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(4) 256K x 9	NONE	NONE	NONE
2MB	(4) 256K x 9	(4) 256K x 9	NONE	NONE
3MB	(4) 256K x 9	(4) 256K x 9	(4) 256K x 9	NONE
4MB	(4) 256K x 9	(4) 256K x 9	(4) 256K x 9	(4) 256K x 9
4MB	(4) 1M x 9	NONE	NONE	NONE
5MB	(4) 256K x 9	(4) 1M x 9	NONE	NONE
6MB	(4) 256K x 9	(4) 256K x 9	(4) 1M x 9	NONE
8MB	(4) 1M x 9	(4) 1M x 9	NONE	NONE
9MB	(4) 256K x 9	(4) 1M x 9	(4) 1M x 9	NONE
10MB	(4) 256K x 9	(4) 256K x 9	(4) 1M x 9	(4) 1M x 9
12MB	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	NONE
16MB	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE	NONE	NONE
20MB	(4) 1M x 9	(4) 4M x 9	NONE	NONE
24MB	(4) 1M x 9	(4) 1M x 9	(4) 4M x 9	NONE
32MB	(4) 4M x 9	(4) 4M x 9	NONE	NONE
36MB	(4) 1M x 9	(4) 4M x 9	(4) 4M x 9	NONE
40MB	(4) 1M x 9	(4) 1M x 9	(4) 4M x 9	(4) 4M x 9
48MB	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9	NONE
64MB	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9
Note:Bank 3 is used when a 32-bit external memory card is installed at S1.

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
32KB	(4) 8K x 8	NONE	(4) 16K x 4
64KB	(4) 8K x 8	(4) 8K x 8	(4) 16K x 4
128KB	(4) 32K x 8	NONE	(4) 16K x 4
256KB	(4) 32K x 8	(4) 32K x 8	(4) 16K x 4

CACHE JUMPER CONFIGURATION
Size	J8	J9	J10	J11	J12
32KB	1 & 2	1 & 2	1 & 2	Open	2 & 3
64KB	2 & 3	1 & 2	1 & 2	Open	1 & 2
128KB	2 & 3	2 & 3	1 & 2	1 & 2	2 & 3
256KB	2 & 3	2 & 3	2 & 3	2 & 3	1 & 2
Note: Pins designated should be in the closed position.