MS-4143 (VER. 1.0)

MICRO-STAR INTERNATIONAL CO., LTD.

MS-4143 (VER. 1.0)

Processor

80486SX/SL80486SX/AM486DX/80486DX/SL80486DX/CX486DX2/ AM486DXL/AM486DX2/80486DX2/SL80486DX2/SL80486DX4/P24D

Processor Speed

25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/ 100(internal)MHz

Chip Set

ALI

Video Chip Set

None

Maximum Onboard Memory

64MB

Maximum Video Memory

None

Cache

128/256/512KB

BIOS

AMI

Dimensions

270mm x 220mm

I/O Options

32-bit PCI slots (3), floppy drive interface, game interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

CN1

Speaker

JFP/pins 7 - 10

Serial port 2

CN2

Turbo LED

JFP/pins 12 & 13

Parallel port

CN3

Reset switch

JFP/pins 19 & 20

Floppy drive interface

CN4

IDE interface LED

JFP/pins 21 & 22

IDE interface 2

CN5

Chassis fan power

JFAN

IDE interface 1

CN6

Green PC connector (monitor)

JG1

Game interface

CN7

Green PC LED

JG2

External battery

JB1

Green PC connector

JG3

Power LED & keylock

JFP/pins 1 - 5

32-bit PCI slots

PC1 - PC3

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Battery type select internal

JB1

Pins 2 & 3 closed

Battery type select external

JB1

Closed

»

Factory configured - do not alter

JC10

Unidentified

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

None

None

None

2MB

(1) 512K x 36

None

None

None

2MB

(1) 256K x 36

(1) 256K x 36

None

None

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

None

4MB

(1) 1M x 36

None

None

None

4MB

(1) 512K x 36

(1) 512K x 36

None

None

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

6MB

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

None

8MB

(1) 2M x 36

None

None

None

8MB

(1) 1M x 36

(1) 1M x 36

None

None

8MB

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

12MB

(1) 2M x 36

(1) 1M x 36

None

None

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

None

16MB

(1) 4M x 36

None

None

None

16MB

(1) 2M x 36

(1) 2M x 36

None

None

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

20MB

(1) 4M x 36

(1) 1M x 36

None

None

20MB

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

24MB

(1) 4M x 36

(1) 2M x 36

None

None

24MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

None

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 8M x 36

None

None

None

32MB

(1) 4M x 36

(1) 4M x 36

None

None

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

40MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

None

40MB

(1) 8M x 36

(1) 2M x 36

None

None

40MB

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

44MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

None

48MB

(1) 8M x 36

(1) 4M x 36

None

None

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

None

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 8M x 36

None

None

64MB

(1) 16M x 36

None

None

None

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

None

(1) 8K/16K/32 x 8

256KB (A)

(4) 32K x 8

(4) 32K x 8

(1) 16K/32K x 8

256KB (B)

(4) 64K x 8

None

(1) 16K/32K x 8

512KB

(4) 128K x 8

None

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JS1

JS2

JS3

128KB

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

256KB (A)

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

256KB (B)

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

512KB

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

CPU SPEED SELECTION

Speed

JK1

JK2

JK3

25MHz

Open

Pins 2 & 3 closed

Open

33MHz

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

Open

40MHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

50iMHz

Open

Pins 2 & 3 closed

Open

66iMHz

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

Open

75iMHz

Open

Pins 2 & 3 closed

Open

80iMHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

100iMHz

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

Open

CPU TYPE SELECTION

Type

JC1

JC2

JC3

JC4

80486SX

Open

2 & 3

Open

Open

SL80486SX

Open

2 & 3

Open

2 & 3

AM486DX

2 & 3

1 & 2, 3 & 4

Open

Open

80486DX

2 & 3

1 & 2, 3 & 4

Open

Open

SL80486DX

2 & 3

1 & 2, 3 & 4

Open

2 & 3

CX486DX2

2 & 3

1 & 2, 3 & 4

4 & 5

4 & 5

AM486DXL

2 & 3

1 & 2, 3 & 4

1 & 2

1 & 2

AM486DX2

2 & 3

1 & 2, 3 & 4

Open

Open

80486DX2

2 & 3

1 & 2, 3 & 4

Open

Open

SL80486DX2

2 & 3

1 & 2, 3 & 4

Open

2 & 3

SL80486DX4

2 & 3

1 & 2, 3 & 4

Open

2 & 3

P24D

2 & 3

1 & 2, 3 & 4

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (CON’T)

Type

JC5

JC6

JC7

JC8

JC9

80486SX

1 & 2

Open

1 & 2

Open

Open

SL80486SX

2 & 3

2 & 3

1 & 2

Closed

Open

AM486DX

1 & 2

Open

1 & 2

Open

Open

80486DX

1 & 2

Open

1 & 2

Open

Open

SL80486DX

2 & 3

2 & 3

1 & 2

Closed

Open

CX486DX2

4 & 5

4 & 5

2 & 3

Open

Closed

AM486DXL

1 & 2

1 & 2

1 & 2

Open

Open

AM486DX2

1 & 2

Open

1 & 2

Open

Open

80486DX2

1 & 2

Open

1 & 2

Open

Open

SL80486DX2

2 & 3

2 & 3

1 & 2

Closed

Open

SL80486DX4

2 & 3

2 & 3

1 & 2

Closed

Open

P24D

2 & 3

2 & 3

2 & 3, 4 & 5

Closed

Open

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION

Voltage

J4

JP8

3.45v

Pins 4 & 10, 5 & 11, 6 & 12 closed

Open

3.6v

Pins 4 & 10, 5 & 11, 6 & 12 closed

Closed

»
5v

Pins 1 & 7, 2 & 8, 3 & 9 closed

Open

DMA CHANNEL SELECTION

Channel

JP17

JP18

JP23

JP24

1

Closed

Closed

Open

Open

»
3

Open

Open

Closed

Closed

Processor	80486SX/SL80486SX/AM486DX/80486DX/SL80486DX/CX486DX2/ AM486DXL/AM486DX2/80486DX2/SL80486DX2/SL80486DX4/P24D
Processor Speed	25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Chip Set	ALI
Video Chip Set	None
Maximum Onboard Memory	64MB
Maximum Video Memory	None
Cache	128/256/512KB
BIOS	AMI
Dimensions	270mm x 220mm
I/O Options	32-bit PCI slots (3), floppy drive interface, game interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 1	CN1	Speaker	JFP/pins 7 - 10
Serial port 2	CN2	Turbo LED	JFP/pins 12 & 13
Parallel port	CN3	Reset switch	JFP/pins 19 & 20
Floppy drive interface	CN4	IDE interface LED	JFP/pins 21 & 22
IDE interface 2	CN5	Chassis fan power	JFAN
IDE interface 1	CN6	Green PC connector (monitor)	JG1
Game interface	CN7	Green PC LED	JG2
External battery	JB1	Green PC connector	JG3
Power LED & keylock	JFP/pins 1 - 5	32-bit PCI slots	PC1 - PC3

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Battery type select internal	JB1	Pins 2 & 3 closed
	Battery type select external	JB1	Closed
»	Factory configured - do not alter	JC10	Unidentified

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 36	None	None	None
2MB	(1) 512K x 36	None	None	None
2MB	(1) 256K x 36	(1) 256K x 36	None	None
3MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	None
4MB	(1) 1M x 36	None	None	None
4MB	(1) 512K x 36	(1) 512K x 36	None	None
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
6MB	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36	None
8MB	(1) 2M x 36	None	None	None
8MB	(1) 1M x 36	(1) 1M x 36	None	None
8MB	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
12MB	(1) 2M x 36	(1) 1M x 36	None	None
12MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	None
16MB	(1) 4M x 36	None	None	None
16MB	(1) 2M x 36	(1) 2M x 36	None	None
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
20MB	(1) 4M x 36	(1) 1M x 36	None	None
20MB	(1) 2M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
24MB	(1) 4M x 36	(1) 2M x 36	None	None
24MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	None
28MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
32MB	(1) 8M x 36	None	None	None
32MB	(1) 4M x 36	(1) 4M x 36	None	None

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
32MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
40MB	(1) 8M x 36	(1) 1M x 36	(1) 1M x 36	None
40MB	(1) 8M x 36	(1) 2M x 36	None	None
40MB	(1) 4M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
44MB	(1) 8M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
48MB	(1) 8M x 36	(1) 2M x 36	(1) 2M x 36	None
48MB	(1) 8M x 36	(1) 4M x 36	None	None
48MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	None
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
64MB	(1) 8M x 36	(1) 8M x 36	None	None
64MB	(1) 16M x 36	None	None	None

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
128KB	(4) 32K x 8	None	(1) 8K/16K/32 x 8
256KB (A)	(4) 32K x 8	(4) 32K x 8	(1) 16K/32K x 8
256KB (B)	(4) 64K x 8	None	(1) 16K/32K x 8
512KB	(4) 128K x 8	None	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JS1	JS2	JS3
128KB	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
256KB (A)	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
256KB (B)	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
512KB	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed

CPU SPEED SELECTION
Speed	JK1	JK2	JK3
25MHz	Open	Pins 2 & 3 closed	Open
33MHz	Pins 1 & 2, 3 & 4 closed	Pins 2 & 3 closed	Open
40MHz	Pins 1 & 2 closed	Pins 1 & 2 closed	Closed
50iMHz	Open	Pins 2 & 3 closed	Open
66iMHz	Pins 1 & 2, 3 & 4 closed	Pins 2 & 3 closed	Open
75iMHz	Open	Pins 2 & 3 closed	Open
80iMHz	Pins 1 & 2 closed	Pins 1 & 2 closed	Closed
100iMHz	Pins 1 & 2, 3 & 4 closed	Pins 2 & 3 closed	Open

CPU TYPE SELECTION
Type	JC1	JC2	JC3	JC4
80486SX	Open	2 & 3	Open	Open
SL80486SX	Open	2 & 3	Open	2 & 3
AM486DX	2 & 3	1 & 2, 3 & 4	Open	Open
80486DX	2 & 3	1 & 2, 3 & 4	Open	Open
SL80486DX	2 & 3	1 & 2, 3 & 4	Open	2 & 3
CX486DX2	2 & 3	1 & 2, 3 & 4	4 & 5	4 & 5
AM486DXL	2 & 3	1 & 2, 3 & 4	1 & 2	1 & 2
AM486DX2	2 & 3	1 & 2, 3 & 4	Open	Open
80486DX2	2 & 3	1 & 2, 3 & 4	Open	Open
SL80486DX2	2 & 3	1 & 2, 3 & 4	Open	2 & 3
SL80486DX4	2 & 3	1 & 2, 3 & 4	Open	2 & 3
P24D	2 & 3	1 & 2, 3 & 4	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (CON’T)
Type	JC5	JC6	JC7	JC8	JC9
80486SX	1 & 2	Open	1 & 2	Open	Open
SL80486SX	2 & 3	2 & 3	1 & 2	Closed	Open
AM486DX	1 & 2	Open	1 & 2	Open	Open
80486DX	1 & 2	Open	1 & 2	Open	Open
SL80486DX	2 & 3	2 & 3	1 & 2	Closed	Open
CX486DX2	4 & 5	4 & 5	2 & 3	Open	Closed
AM486DXL	1 & 2	1 & 2	1 & 2	Open	Open
AM486DX2	1 & 2	Open	1 & 2	Open	Open
80486DX2	1 & 2	Open	1 & 2	Open	Open
SL80486DX2	2 & 3	2 & 3	1 & 2	Closed	Open
SL80486DX4	2 & 3	2 & 3	1 & 2	Closed	Open
P24D	2 & 3	2 & 3	2 & 3, 4 & 5	Closed	Open
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage		J4	JP8
	3.45v	Pins 4 & 10, 5 & 11, 6 & 12 closed	Open
	3.6v	Pins 4 & 10, 5 & 11, 6 & 12 closed	Closed
»	5v	Pins 1 & 7, 2 & 8, 3 & 9 closed	Open

DMA CHANNEL SELECTION
Channel		JP17	JP18	JP23	JP24
	1	Closed	Closed	Open	Open
»	3	Open	Open	Closed	Closed