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MS-4861

CSS LABORATORIES, INC.

MS-4861

Processor

80486SX/SL80486SX/UMCU5/80486DX/SL80486DX/CXM7/ AM486DX2/AM486DX2+/80486DX2/SL80486DX2/SL80486DX4/ AM486DX5/P24D/CX M1SC/P24T

Processor Speed

33/40/66(internal)80(internal)/100(internal)/133(internal)MHz

Chip Set

ALI

Video Chip Set

Unidentified

Maximum Onboard Memory

128MB

Maximum Video Memory

1MB

Cache

128/256/512KB

BIOS

AMI

Dimensions

Unidentified

I/O Options

Floppy drive interface, IDE interfaces (2), parallel port, serial ports (2), VGA port, PC/104 connectors (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface 1

J3

Serial port 2

J8

Parallel port

J4

Serial port 1

J9

On board IDE disk connector

J5

VGA port

J10

Floppy drive interface

J6

PC/104 connector

P1

IDE interface 2

J7

PC/104 connector

P2

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

JP1

Unidentified

»

Factory configured - do not alter (flash BIOS select)

JP14

Unidentified

»

Factory configured - do not alter

JP23

Unidentified

»

Factory configured - do not alter (IDE master)

JP35

Unidentified

»

Factory configured - do not alter

JP40

Unidentified

»

Factory configured - do not alter

JP41

Unidentified

»

Factory configured - do not alter

JP45

Unidentified

»

Factory configured - do not alter

JP46

Unidentified

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

4MB

(1) 1M x 36

None

None

8MB

(1) 1M x 36

(1) 1M x 36

None

8MB

(1) 2M x 36

None

None

10MB

(1) 1M x 36

(1) 1M x 36

(1) 512K x 36

10MB

(1) 2M x 36

(1) 512K x 36

None

12MB

(1) 2M x 36

(1) 1M x 36

None

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

14MB

(1) 2M x 36

(1) 1M x 36

(1) 512K x 36

16MB

(1) 4M x 36

None

None

16MB

(1) 2M x 36

(1) 2M x 36

None

20MB

(1) 4M x 36

(1) 1M x 36

None

20MB

(1) 4M x 36

(1) 512K x 36

(1) 512K x 36

22MB

(1) 4M x 36

(1) 1M x 36

(1) 512K x 36

24MB

(1) 4M x 36

(1) 2M x 36

None

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

26MB

(1) 4M x 36

(1) 2M x 36

(1) 512K x 36

28MB

(1) 4M x 36

(1) 2M x 36

(1) 1M x 36

32MB

(1) 8M x 36

None

None

32MB

(1) 4M x 36

(1) 4M x 36

None

34MB

(1) 8M x 36

(1) 512K x 36

None

34MB

(1) 4M x 36

(1) 4M x 36

(1) 512K x 36

36MB

(1) 8M x 36

(1) 512K x 36

(1) 512K x 36

38MB

(1) 8M x 36

(1) 512K x 36

(1) 1M x 36

40MB

(1) 8M x 36

(1) 2M x 36

None

40MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

42MB

(1) 8M x 36

(1) 2M x 36

(1) 512K x 36

44MB

(1) 8M x 36

(1) 2M x 36

(1) 1M x 36

48MB

(1) 8M x 36

(1) 4M x 36

None

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

48MB

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

50MB

(1) 8M x 36

(1) 4M x 36

(1) 512K x 36

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

52MB

(1) 8M x 36

(1) 4M x 36

(1) 1M x 36

56MB

(1) 8M x 36

(1) 4M x 36

(1) 2M x 36

64MB

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 16M x 36

None

None

64MB

(1) 8M x 36

(1) 8M x 36

None

66MB

(1) 8M x 36

(1) 8M x 36

(1) 512K x 36

68MB

(1) 8M x 36

(1) 8M x 36

(1) 1M x 36

68MB

(1) 16M x 36

(1) 1M x 36

None

70MB

(1) 16M x 36

(1) 1M x 36

(1) 512K x 36

72MB

(1) 16M x 36

(1) 2M x 36

None

72MB

(1) 16M x 36

(1) 1M x 36

(1) 1M x 36

74MB

(1) 16M x 36

(1) 2M x 36

(1) 512K x 36

76MB

(1) 16M x 36

(1) 2M x 36

(1) 1M x 36

80MB

(1) 16M x 36

(1) 4M x 36

None

80MB

(1) 16M x 36

(1) 2M x 36

(1) 2M x 36

82MB

(1) 16M x 36

(1) 4M x 36

(1) 512K x 36

84MB

(1) 16M x 36

(1) 4M x 36

(1) 1M x 36

88MB

(1) 16M x 36

(1) 4M x 36

(1) 2M x 36

96MB

(1) 16M x 36

(1) 8M x 36

None

96MB

(1) 16M x 36

(1) 4M x 36

(1) 4M x 36

98MB

(1) 16M x 36

(1) 8M x 36

(1) 512K x 36

100MB

(1) 16M x 36

(1) 8M x 36

(1) 1M x 36

104MB

(1) 16M x 36

(1) 8M x 36

(1) 2M x 36

112MB

(1) 16M x 36

(1) 8M x 36

(1) 4M x 36

128MB

(1) 16M x 36

(1) 16M x 36

None

128MB

(1) 16M x 36

(1) 8M x 36

(1) 8M x 36

Note: Board accepts x 32 SIMMs. 512KB x 32/36 is not recommended.

CACHE CONFIGURATION

Size

Bank 0

TAG

128KB

(4) 32K x 8

(1) 32K x 8

256KB

(4) 64K x 8

(1) 32K x 8

512KB

(4) 128K x 8

(1) 32K x 8

Note: The location of bank 0 & the TAG is unidentified.

CACHE JUMPER CONFIGURATION

Size

JP21

JP22

128KB

Open

Open

256KB

Open

Closed

512KB

Closed

Closed

VIDEO MEMORY CONFIGURATION

Size

Bank 0

1MB

(2) 256K x 16

Note: The location of bank 0 is unidentified.

CPU SPEED SELECTION

Speed

JP15

JP16

JP18

JP25

33MHz

Closed

Open

Pins 1 & 2 closed

Open

40MHz

Open

Closed

Pins 2 & 3 closed

Closed

66iMHz

Closed

Open

Pins 1 & 2 closed

Open

80iMHz

Open

Closed

Pins 2 & 3 closed

Closed

100iMHz

Closed

Open

Pins 1 & 2 closed

Open

133iMHz

Closed

Open

Pins 1 & 2 closed

Open

CPU TYPE SELECTION

Type

JP5

JP6

JP7

JP8

JP9

80486SX

Open

Open

1 & 2

Open

Open

SL80486SX

Closed

Open

3 & 4

3 & 4

3 & 4

UMC U5

Open

Open

1 & 2

1 & 2

1 & 2

80486DX

Open

Open

1 & 2

Open

Open

SL80486DX

Closed

Open

3 & 4

3 & 4

3 & 4

CX M7

Closed

Open

5 & 6

5 & 6

5 & 6

AM486DX2

Open

Closed

1 & 2

Open

Open

AM486DX2-66

Open

Closed

1 & 2

Open

Open

AM486DX2-80

Open

Closed

1 & 2

Open

Open

AM486DX2-100

Open

Closed

1 & 2

Open

Open

AM486DX2+-66

Closed

Open

3 & 4

3 & 4

3 & 4

AM486DX2+-80

Closed

Open

3 & 4

3 & 4

3 & 4

AM486DX2+-100

Closed

Open

3 & 4

3 & 4

3 & 4

80486DX2

Open

Open

1 & 2

Open

Open

SL80486DX2

Closed

Open

3 & 4

3 & 4

3 & 4

SL80486DX4

Closed

Open

3 & 4

3 & 4

3 & 4

AM486DX5

Open

Open

1 & 2

Open

Open

P24D

Closed

Open

3 & 4

3 & 4

3 & 4

CX M1SC

Closed

Open

3 & 4

3 & 4

3 & 4

P24T

Closed

Open

3 & 4

3 & 4

3 & 4

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (CON’T)

Type

JP10

JP11

JP12

JP13

JP34

80486SX

Open

1 & 2

1 & 2

Open

Open

SL80486SX

Open

1 & 2

1 & 2

Open

Open

UMC U5

Open

1 & 2

1 & 2

Open

Open

80486DX

Open

1 & 2

2 & 3

2 & 3

Open

SL80486DX

Open

1 & 2

2 & 3

2 & 3

Open

CX M7

1 & 2

1 & 2

2 & 3

2 & 3

1 & 2

AM486DX2

Open

1 & 2

2 & 3

2 & 3

Open

AM486DX2-66

Open

1 & 2

2 & 3

2 & 3

Open

AM486DX2-80

Open

1 & 2

2 & 3

2 & 3

Open

AM486DX2-100

Open

1 & 2

2 & 3

2 & 3

Open

AM486DX2+-66

1 & 3, 5 & 6

2 & 3

2 & 3

2 & 3

2 & 3

AM486DX2+-80

1 & 3, 5 & 6

2 & 3

2 & 3

2 & 3

2 & 3

AM486DX2+-100

5 & 6

2 & 3

2 & 3

2 & 3

2 & 3

80486DX2

Open

1 & 2

2 & 3

2 & 3

Open

SL80486DX2

Open

1 & 2

2 & 3

2 & 3

Open

SL80486DX4

Open

1 & 2

2 & 3

2 & 3

Open

AM486DX5

Open

1 & 2

2 & 3

2 & 3

Open

P24D

5 & 6

2 & 3

2 & 3

2 & 3

2 & 3

CX M1SC

5 & 6

2 & 3

2 & 3

2 & 3

2 & 3

P24T

Open

2 & 3

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION

Voltage

JP2

JP3

3.3v

Pins 2 & 3 closed

Pins 2 & 3 closed

3.45v

Pins 2 & 3 closed

Pins 2 & 3 closed

3.6v

Pins 2 & 3 closed

Pins 2 & 3 closed

4v

Pins 2 & 3 closed

Pins 2 & 3 closed

5v

Pins 1 & 2 closed

Pins 1 & 2 closed

DMA CHANNEL SELECTION

Channel

JP19

JP20

»

1

Pins 2 & 3 closed

Pins 2 & 3 closed

 

3

Pins 1 & 2 closed

Pins 1 & 2 closed