Processor	80386SX
Processor Speed	20/25MHz
Chip Set	OPTI
Max. Onboard DRAM	16MB
Cache	32/64KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J2	Speaker	J13
Turbo switch	J9	Turbo LED	J14
Power LED & keylock	J12	Reset switch	J15

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	J3	pins 2 & 3 closed
»	Factory configured - do not alter	J8	pins 1 & 2 closed
»	Factory configured - do not alter	J10	Closed
»	NPU mode select synchronous with CPU	J11	Open
	NPU mode select asynchronous with CPU	J11	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(2) 256K x 9	(2) 256K x 9	NONE	NONE
2MB	(2) 256K x 9	(2) 256K x 9	(2) 256K x 9	(2) 256K x 9
4MB	(2) 1M x 9	(2) 1M x 9	NONE	NONE
5MB	(2) 256K x 9	(2) 256K x 9	(2) 1M x 9	(2) 1M x 9
6MB	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9	NONE
8MB	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9	(2) 1M x 9
10MB	(2) 1M x 9	(2) 4M x 9	NONE	NONE
16MB	(2) 4M x 9	(2) 4M x 9	NONE	NONE

CACHE CONFIGURATION
Size	Cache	Location	TAG (U19)
32KB	(4) 8K x 8	U15 - U18	(1) 8K x 8
64KB	(2) 32K x 8	U15 & U16	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	J4	J5	J6	J7
32KB	Open	Closed	pins 1 & 2 closed	pins 2 & 3 closed
64KB	Closed	Open	pins 2 & 3 closed	pins 2 & 3 closed