486 CACHE SERIES Motherboard Settings and Configuration

Processor	80486DX
Processor Speed	33MHz
Chip Set	Symphony
Max. Onboard DRAM	32MB
Cache	64/128/256/1024KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	32-bit external memory card slot
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	JP24	Turbo switch	JP28
Speaker	JP26	Turbo LED	JP29
Reset switch	JP27	32-bit external memory card	S1

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	JP2	N/A
»	Factory configured - do not alter	JP7	N/A
»	Factory configured - do not alter	JP8	N/A
»	Factory configured - do not alter	JP9	N/A
»	Factory configured - do not alter	JP10	N/A
»	Factory configured - do not alter	JP15	N/A
»	Factory configured - do not alter	JP16	N/A
»	Factory configured - do not alter	JP22	N/A
»	Factory configured - do not alter	JP23	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
5MB	(4) 1M x 9	(4) 256K x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
17MB	(4) 4M x 9	(4) 256K x 9
20MB	(4) 4M x 9	(4) 1M 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
1024KB	(4) 128K x 8	(4) 128K x 8	(1) 128K x 8

CACHE JUMPER CONFIGURATION
Size	JP3	JP4	JP5	JP6	JP11	JP12	JP13
64KB	Closed	Open	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
128KB	Closed	Open	1 & 2	1 & 2	2 & 3	1 & 2	1 & 2
256KB	Closed	Open	2 & 3	2 & 3	2 & 3	2 & 3	1 & 2
1024KB	Closed	Open	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CACHE JUMPER CONFIGURATION (CON’T)
Size	JP14	JP17	JP18	JP19	JP20	JP21	JP25
64KB	1 & 2	1 & 2	2 & 3	2 & 3	2 & 3	2 & 3	Open
128KB	1 & 2	Open	1 & 2	1 & 2	1 & 2	1 & 2	Closed
256KB	1 & 2	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	Open
1024KB	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	Open
Note: Pins designated should be in the closed position.