386DX/486DLC VERSION IV Motherboard Settings and Configuration

Processor	80386DX/CX486DLC
Processor Speed	33/40MHz
Chip Set	OPTI
Max. Onboard DRAM	32MB
Cache	64/128/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	80387DX/CX487DLC

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J1	Power LED & keylock	J18
Turbo LED	JP11	Speaker	J19
Turbo switch	JP12	Reset switch	SW1

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	JP1	N/A
»	CMOS memory normal operation	JP3	pins 2 & 3 closed
	CMOS memory clear	JP3	pins 1 & 2 closed
»	Monitor type select color	JP4	Closed
	Monitor type select monochrome	JP4	Open
»	Factory configured - do not alter	JP7	N/A

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
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
32MB	(4) 4M x 9	(4) 4M x 9

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

CACHE JUMPER CONFIGURATION
Size	JP6	JP8	JP9	JP10	JP17	JP18
64KB	Open	Open	Open	2 & 3	Open	Open
128KB	Closed	Closed	Open	1 & 2	Open	Closed
256KB	Closed	Closed	Closed	2 & 3	Closed	Closed
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	JP5	JP13
80386DX	Open	Open
CX486DLC	Closed	Closed

CPU SPEED CONFIGURATION
Speed	JP2
33MHz	Closed
40MHz	Open

CPU CLOCK GENERATOR CONFIGURATION
Type	JP14	JP15	JP16
5OMHz	Closed	Open	Closed
66MHz	Closed	Closed	Open
80MHz	Open	Open	Closed