MS-4861 Motherboard Settings and Configuration

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

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MS-4861 Motherboard Settings and Configuration

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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