UL486 Motherboard Settings and Configuration

Processor	80486SX/80486DX/80486DX2
Processor Speed	16/20/25/33/50(internal)/50/66(internal)MHz
Chip Set	UMC
Max. Onboard DRAM	32MB
Cache	64/128/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	32-bit external memory card
NPU Options	None

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

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	JP1	pins 2 & 3 closed
	Monitor type select monochrome	JP1	pins 1 & 2 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) 1 M x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
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
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	JP7	JP8	JP9	JP10	JP11	JP12	JP13
64MB	1 & 2	1 & 2	Open	Open	Open	Open	Open	1 & 2
128MB	2 & 3	1 & 2	Closed	Closed	Open	Open	1 & 2	2 & 3
256MB	2 & 3	2 & 3	Closed	Closed	Closed	JP8	2 & 3	1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	JP17	JP18
80486SX	pins 2 & 3 closed	Open
80486DX	pins 1 & 2 closed	Closed
80486DX2	pins 1 & 2 closed	Closed