CAF I421 Motherboard Settings and Configuration

Processor	80486SX/80487SX/80486DX
Processor Speed	20/33MHz
Chip Set	UMC
Max. Onboard DRAM	32MB
Cache	64/128/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J4	Power LED & keylock	J7
Turbo switch	J5	Reset switch	W7
Speaker	J6	Turbo LED	W11

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	J8	pins 2 & 3 closed
»	Monitor type select monochrome	W8	Open
	Monitor type select color	W8	Closed
»	Factory configured - do not alter	W10	Closed
»	Factory configured - do not alter	W20	pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(4) 256KB x 9	NONE
2MB	(4) 256KB x 9	(4) 256KB x 9
4MB	(4) 1MBx 9	NONE
5MB	(4) 256KB x 9	(4) 1MBx 9
8MB	(4) 1MBx 9	(4) 1MBx 9
16MB	(4) 4MB x 9	NONE
20MB	(4) 1MBx 9	(4) 4MB x 9
32MB	(4) 4MB x 9	(4) 4MB x 9

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

CACHE JUMPER CONFIGURATION
Size	W1	W2	W3	W4	W5
64KB	Open	1 & 2	1 & 2	1 & 2	2 & 3
128KB	1 & 2	1 & 2	2 & 3	2 & 3	2 & 3
256KB	2 & 3	2 & 3	2 & 3	1 & 2	2 & 3
Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	W12	W13	W14	W15
80486SX	Open	Open	pins 2 & 3 closed	Closed
80487SX	pins 2 & 3 closed	Closed	pins 1 & 2 closed	Open
80486DX	pins 1 & 2 closed	Closed	pins 1 & 2 closed	Open