CACHE FM-S486C Motherboard Settings and Configuration

MULTI DIMENSION RESEARCH, INC.

CACHE FM-S486C

Processor
80486DX
Processor Speed
25/33/40/50MHz
Chip Set
Symphony
Max. Onboard DRAM
32MB
Cache
64/128/256/1024KB
BIOS
AMI
Dimensions
330mm x 218mm
I/O Options
None
NPU Options
4167

CONNECTIONS
Purpose
Location
Purpose
Location
Speaker
JP1
Turbo switch
JP10
Reset switch
JP2
Turbo LED
JP11
Power LED & keylock
JP5

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
CPU speed select CCLK2 (CLOCK=OSC)
JP3
pins 1 & 2 closed

CPU speed select PLCK (CLOCK=OSC2)
JP3
pins 2 & 3 closed
»
Monitor type select color
JP6
Closed

Monitor type select monochrome
JP6
Open
»
Cache write hit select 0 wait state
JP32
Closed

Cache write hit select 1 wait state
JP32
Open
»
Factory configured - do not alter
JP33
pins 2 & 3 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
17MB
(4) 256K x 9
(4) 4M 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
Line size
64KB
(4) 8K x 8
(4) 8K x 8
(1) 8K x 8
4
128KB
(4) 32K x 8
NONE
(1) 32K x 8
1
128KB
(4) 32K x 8
NONE
(1) 8K x 8
4
256KB
(4) 32K x 8
(4) 32K x 8
(1) 32K x 8
4
1MB
(4) 128K x 8
(4) 128K x 8
(1) 128K x 8
4

CACHE JUMPER CONFIGURATION
Size
JP22
JP23
JP24
JP25
JP26
64KB
1 & 2
1 & 2
1 & 2
1 & 2
Open
128KB
2 & 3
1 & 2
1 & 2
1 & 2
Closed
128KB
2 & 3
1 & 2
1 & 2
1 & 2
Closed
256KB
2 & 3
2 & 3
1 & 2
1 & 2
Open
1MB
2 & 3
2 & 3
2 & 3
2 & 3
Open
Note: Pins designated should be in the closed position.

CACHE JUMPER CONFIGURATION (CON’T)
Size
JP28
JP34
JP35
JP36
JP37
64KB
Closed
JP22
2 & 3
2 & 3
2 & 3
128KB
Open
JP23
1 & 2
1 & 2
1 & 2
128KB
Closed
JP24
1 & 2
1 & 2
1 & 2
256KB
Closed
JP25
2 & 3
2 & 3
2 & 3
1MB
Closed
JP26
2 & 3
2 & 3
2 & 3
Note: Pins designated should be in the closed position.

CACHE JUMPER CONFIGURATION (CON’T)
Size
JP38
JP39
JP40
JP41
JP42
64KB
Open
2 & 3
2 & 3
Open
2 & 3
128KB
Closed
Open
1 & 2
Closed
2 & 3
128KB
Closed
1 & 2
1 & 2
Open
1 & 2
256KB
Open
2 & 3
2 & 3
Open
2 & 3
1MB
Open
2 & 3
2 & 3
Open
2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type
JP12
JP13
JP14
80486SX
Open
pins 2 & 3 closed
Open
80486DX
Closed
pins 1 & 2 closed
Closed

CPU SPEED CONFIGURATION
Speed
OSC
JP27
25MHz
50MHz
Open
33MHz
66MHz
Open
40MHz
40MHz
Closed
40MHz
80MHz
Open
50MHz
50MHz
Closed

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Processor	80486DX
Processor Speed	25/33/40/50MHz
Chip Set	Symphony
Max. Onboard DRAM	32MB
Cache	64/128/256/1024KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Speaker	JP1	Turbo switch	JP10
Reset switch	JP2	Turbo LED	JP11
Power LED & keylock	JP5

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	CPU speed select CCLK2 (CLOCK=OSC)	JP3	pins 1 & 2 closed
	CPU speed select PLCK (CLOCK=OSC2)	JP3	pins 2 & 3 closed
»	Monitor type select color	JP6	Closed
	Monitor type select monochrome	JP6	Open
»	Cache write hit select 0 wait state	JP32	Closed
	Cache write hit select 1 wait state	JP32	Open
»	Factory configured - do not alter	JP33	pins 2 & 3 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
17MB	(4) 256K x 9	(4) 4M 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	Line size
64KB	(4) 8K x 8	(4) 8K x 8	(1) 8K x 8	4
128KB	(4) 32K x 8	NONE	(1) 32K x 8	1
128KB	(4) 32K x 8	NONE	(1) 8K x 8	4
256KB	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8	4
1MB	(4) 128K x 8	(4) 128K x 8	(1) 128K x 8	4

CACHE JUMPER CONFIGURATION
Size	JP22	JP23	JP24	JP25	JP26
64KB	1 & 2	1 & 2	1 & 2	1 & 2	Open
128KB	2 & 3	1 & 2	1 & 2	1 & 2	Closed
128KB	2 & 3	1 & 2	1 & 2	1 & 2	Closed
256KB	2 & 3	2 & 3	1 & 2	1 & 2	Open
1MB	2 & 3	2 & 3	2 & 3	2 & 3	Open
Note: Pins designated should be in the closed position.

CACHE JUMPER CONFIGURATION (CON’T)
Size	JP28	JP34	JP35	JP36	JP37
64KB	Closed	JP22	2 & 3	2 & 3	2 & 3
128KB	Open	JP23	1 & 2	1 & 2	1 & 2
128KB	Closed	JP24	1 & 2	1 & 2	1 & 2
256KB	Closed	JP25	2 & 3	2 & 3	2 & 3
1MB	Closed	JP26	2 & 3	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CACHE JUMPER CONFIGURATION (CON’T)
Size	JP38	JP39	JP40	JP41	JP42
64KB	Open	2 & 3	2 & 3	Open	2 & 3
128KB	Closed	Open	1 & 2	Closed	2 & 3
128KB	Closed	1 & 2	1 & 2	Open	1 & 2
256KB	Open	2 & 3	2 & 3	Open	2 & 3
1MB	Open	2 & 3	2 & 3	Open	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	JP12	JP13	JP14
80486SX	Open	pins 2 & 3 closed	Open
80486DX	Closed	pins 1 & 2 closed	Closed

CPU SPEED CONFIGURATION
Speed	OSC	JP27
25MHz	50MHz	Open
33MHz	66MHz	Open
40MHz	40MHz	Closed
40MHz	80MHz	Open
50MHz	50MHz	Closed