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

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

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