DX-6400 Motherboard Settings and Configuration

Processor	80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed	16/20/25/33/50(internal)/50/66(internal)MHz
Chip Set	C & T
Max. Onboard DRAM	32MB
Cache	64/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J3	Reset switch	J6
Turbo switch	J4	Power LED & keylock	J7
Turbo LED	J5	Speaker	J8

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	CMOS memory normal operation	JP1	pins 2 & 3 closed
	CMOS memory clear	JP1	pins 1 & 2 closed
»	Monitor type select color	JP2	Closed
	Monitor type select monochrome	JP2	Open
»	I/O bus speed select CPUCLK/4	JP3	Open
	I/O bus speed select CPUCLK/6	JP3	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) 4M x 9	(4) 1M x 9
20MB	(4) 1M x 9	(4) 4M x 9
32MB	(4) 4M x 9	(4) 4M x 9

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG (U27)	TAG (U28)
64KB	(4) 8K x 8	(4) 8K x 8	(1) 8K x 8	NONE
256KB	(4) 32K x 8	(4) 32K x 8	(1) 8K x 8	(1) 8K x 8
256KB	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8	NONE

CACHE JUMPER CONFIGURATION
Size	JP7	JP8	JP9	JP10	JP11
64KB	Open	Open	Open	Open	2 & 3
256KB	1 & 2	1 & 2	Open	1 & 2	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	Socket	JP4	JP5	JP6
80486SX	CPU	pins 2 & 3 closed	Open	open
ODP486SX	CPU-X	pins 1 & 2 closed	Closed	pins 1 & 2 closed
80487SX	CPU-X	pins 1 & 2 closed	Closed	pins 1 & 2 closed
80486DX	CPU	pins 1 & 2 closed	Closed	pins 2 & 3 closed
80486DX2	CPU	pins 1 & 2 closed	Closed	pins 2 & 3 closed

CPU CLOCK FREQUENCY CONFIGURATION
Type	CPU Frequency	Osc Frequency	JP12
80486SX/80487SX/80486DX	20/25/33MHz	40/50/66MHz	pins 2 & 3 closed
80486DX2/ODP486SX	50/66MHz	25/33MHz	pins 1 & 2 closed
80486DX2/ODP486SX	50/66MHz	50/66MHz	pins 2 & 3 closed
80486DX	50MHz	50MHz	pins 1 & 2 closed