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MB-4D50AG

UNIDENTIFIED

MB-4D50AG

Processor

CXM6/80486SX/CXM7/80486DX/80486DX2/P4S/P23S/P24S/Pentium Overdrive

Processor Speed

20/25/33/40/50(internal)/50/66(internal)MHz

Chip Set

ALI

Max. Onboard DRAM

128MB

Cache

64/128/256/512KB

BIOS

Unidentified

Dimensions

250mm x 220mm

I/O Options

32-bit VESA local bus slots (2), 32-bit PCI slots (3), green PC connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Green PC connector (monitor)

JP6

Speaker

J2

Green PC connector

JP40

Power LED & keylock

J3

Green PC connector

JP41

Turbo switch

J4

32-bit VESA local bus slots

SL1 & SL2

Turbo LED

J5

32-bit PCI slots

PC1 - PC3

Reset switch

J6

   

Note: The location of JP6 is unidentified.

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Ľ

Factory configured - do not alter

JP37

N/A

Ľ

CMOS memory normal operation

JP38

pins 1 & 2 closed

 

CMOS memory clear

JP38

pins 2 & 3 closed

Ľ

Monitor type select color

JP39

pins 2 & 3 closed

 

Monitor type select monochrome

JP39

pins 1 & 2 closed

Ľ

Factory configured - do not alter

JP42

N/A

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) 512K x 36

NONE

(1) 256K x 36

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

NONE

(1) 512K x 36

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

5MB

(1) 256K x 36

(1) 1M x 36

NONE

NONE

5MB

(1) 1M x 36

(1) 256K x 36

NONE

NONE

6MB

(1) 512K x 36

NONE

(1) 1M x 36

NONE

6MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

NONE

6MB

(1) 256K x 36

(1) 1M x 36

(1) 256K x 36

NONE

6MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

NONE

7MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

7MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

(1) 256K x 36

7MB

(1) 256K x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

8MB

(1) 2M x 36

NONE

NONE

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

9MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

NONE

9MB

(1) 1M x 36

(1) 256K x 36

(1) 1M x 36

NONE

9MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

NONE

10MB

(1) 512K x 36

NONE

(1) 2M x 36

NONE

10MB

(1) 2M x 36

NONE

(1) 512K x 36

NONE

10MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

10MB

(1) 256K x 36

(1) 1M x 36

(1) 256K x 36

(1) 1M x 36

10MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

12MB

(1) 2M x 36

NONE

(1) 1M x 36

NONE

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

13MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

16MB

(1) 2M x 36

NONE

(1) 2M x 36

NONE

17MB

(1) 256K x 36

(1) 4M x 36

NONE

NONE

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

17MB

(1) 4M x 36

(1) 256K x 36

NONE

NONE

18MB

(1) 512K x 36

NONE

(1) 4M x 36

NONE

18MB

(1) 256K x 36

(1) 256K x 36

(1) 4M x 36

NONE

18MB

(1) 256K x 36

(1) 4M x 36

(1) 256K x 36

NONE

18MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

NONE

19MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 4M x 36

19MB

(1) 256K x 36

(1) 256K x 36

(1) 4M x 36

(1) 256K x 36

19MB

(1) 256K x 36

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

20MB

(1) 1M x 36

(1) 4M x 36

NONE

NONE

20MB

(1) 4M x 36

(1) 1M x 36

NONE

NONE

20MB

(1) 512K x 36

(1) 512K x 36

(1) 2M x 36

(1) 2M x 36

21MB

(1) 256K x 36

(1) 1M x 36

(1) 4M x 36

NONE

21MB

(1) 256K x 36

(1) 4M x 36

(1) 1M x 36

NONE

21MB

(1) 1M x 36

(1) 256K x 36

(1) 4M x 36

NONE

21MB

(1) 1M x 36

(1) 4M x 36

(1) 256K x 36

NONE

21MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

NONE

22MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

(1) 4M x 36

22MB

(1) 256K x 36

(1) 256K x 36

(1) 4M x 36

(1) 1M x 36

22MB

(1) 256K x 36

(1) 1M x 36

(1) 256K x 36

(1) 4M x 36

22MB

(1) 256K x 36

(1) 1M x 36

(1) 4M x 36

(1) 256K x 36

22MB

(1) 256K x 36

(1) 4M x 36

(1) 256K x 36

(1) 1M x 36

22MB

(1) 256K x 36

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

24MB

(1) 2M x 36

NONE

(1) 4M x 36

NONE

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

24MB

(1) 1M x 36

(1) 4M x 36

(1) 1M x 36

NONE

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

NONE

25MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

25MB

(1) 256K x 36

(1) 1M x 36

(1) 4M x 36

(1) 1M x 36

25MB

(1) 256K x 36

(1) 4M 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

33MB

(1) 8M x 36

NONE

(1) 256K x 36

NONE

33MB

(1) 256K x 36

(1) 4M x 36

(1) 4M x 36

NONE

33MB

(1) 4M x 36

(1) 256K x 36

(1) 4M x 36

NONE

33MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

NONE

34MB

(1) 512K x 36

NONE

(1) 8M x 36

NONE

34MB

(1) 8M x 36

NONE

(1) 512K x 36

NONE

34MB

(1) 256K x 36

(1) 256K x 36

(1) 4M x 36

(1) 4M x 36

34MB

(1) 256K x 36

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

36MB

(1) 8M x 36

NONE

(1) 1M x 36

NONE

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

NONE

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

36MB

(1) 4M x 36

(1) 1M x 36

(1) 4M x 36

NONE

36MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

NONE

37MB

(1) 256K x 36

(1) 4M x 36

(1) 1M x 36

(1) 4M x 36

37MB

(1) 256K x 36

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

40MB

(1) 2M x 36

NONE

(1) 8M x 36

NONE

40MB

(1) 8M x 36

NONE

(1) 2M x 36

NONE

48MB

(1) 8M x 36

NONE

(1) 4M x 36

NONE

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

49MB

(1) 256K x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

NONE

(1) 8M x 36

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

68MB

(1) 512K x 36

(1) 512K x 36

(1) 8M x 36

(1) 8M x 36

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

512KB

(4) 128K x 8

NONE

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP1

JP2

JP3

JP4

JP5

64KB

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

128KB

2 & 3

1 & 2

2 & 3

1 & 2

1 & 2

256KB

2 & 3

4 & 5

2 & 3

2 & 3

1 & 2

512KB

2 & 3

1 & 2

2 & 3

2 & 3

2 & 3

Note: Pins designated should be closed position.

CPU TYPE CONFIGURATION

Type

JP15

JP16

JP17

JP18

JP19

JP20

CX M6

Open

Open

1 & 2

Open

Closed

Open

80486SX

Open

Open

1 & 2

Closed

Open

Open

CX M7

Closed

Open

1 & 2

Open

Closed

Closed

AM486DXL

Closed

Open

1 & 2

Closed

Open

Open

80486DX

Closed

Open

1 & 2

Closed

Open

Open

80486DX2

Closed

Open

1 & 2

Closed

Open

Open

P23S

Closed

Closed

1 & 2

Closed

Open

Open

P4S

Closed

Closed

1 & 2

Closed

Open

Open

P24S

Closed

Closed

1 & 2

Closed

Open

Open

P24T

Closed

Open

2 & 3

Closed

Open

Closed

Note: Pins designated should be in the closed position. The location of JP15 & JP16 are unidentified.

CPU TYPE CONFIGURATION (CONíT)

Type

JP21

JP22

JP23

JP24

JP25

JP26

CX M6

1 & 2

2 & 3

4 & 5

Open

1 & 2

4 & 5

80486SX

1 & 2

1 & 2

2 & 4

Open

Open

2 & 4

CX M7

2 & 3

2 & 3

4 & 5

Open

1 & 2

4 & 5

AM486DXL

2 & 3

2 & 3

1 & 2

2 & 3

Open

1 & 2

80486DX

2 & 3

1 & 2

2 & 4

2 & 3

Open

2 & 4

80486DX2

2 & 3

1 & 2

2 & 4

2 & 3

Open

2 & 4

P23S

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

P4S

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

P24S

1 & 2

2 & 3

2 & 3

Open

2 & 3

2 & 3

P24T

2 & 3

1 & 2

2 & 3

1 & 2

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (BIOS SETUP)

Type

JP7

JP8

JP9

CX M6

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

80486SX

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

CX M7

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

AM486DXL

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

80486DX

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

80486DX2

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION (CHIPSET SETUP)

Type

JP27

JP29

JP30

JP47

CX M6 (1x)

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

Open

CX M6 (2x)

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

Closed

80486SX

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

N/A

CX M7 (1x)

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

Open

CX M7 (2x)

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

Closed

AM486DXL

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

N/A

80486DX

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

N/A

80486DX2

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

N/A

CPU SPEED CONFIGURATION

Speed

JP10

JP11

JP12

JP13

JP28

20MHz

2 & 3

2 & 3

2 & 3

1 & 2

1 & 2

25MHz

2 & 3

2 & 3

1 & 2

2 & 3

1 & 2

33MHz

2 & 3

1 & 2

2 & 3

2 & 3

1 & 2

40MHz

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

50iMHz

2 & 3

2 & 3

1 & 2

2 & 3

1 & 2

50MHz

2 & 3

2 & 3

1 & 2

2 & 3

2 & 3

66iMHz

2 & 3

1 & 2

2 & 3

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION (CONíT)

Speed

JP31

JP32

JP33

JP34

JP35

20MHz

1 & 2

1 & 2

1 & 2

1 & 2

2 & 3

25MHz

1 & 2

1 & 2

1 & 2

1 & 2

2 & 3

33MHz

1 & 2

1 & 2

1 & 2

1 & 2

2 & 3

40MHz

1 & 2

2 & 3

2 & 3

1 & 2

1 & 2

50iMHz

1 & 2

1 & 2

1 & 2

1 & 2

2 & 3

50MHz

1 & 2

2 & 3

2 & 3

1 & 2

1 & 2

66iMHz

1 & 2

1 & 2

1 & 2

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

VESA WAIT STATE CONFIGURATION

Wait states

JP46

0 wait states

pins 1 & 2 closed

1 wait state

pins 2 & 3 closed

BUS SPEED CONFIGURATION

CPU speed

JP45

<= 33MHz

pins 1 & 2 closed

> 33MHz

pins 2 & 3 closed

BIOS CONFIGURATION

Type

JP36

JP43

EPROM

pins 1 & 2 closed

Open

Flash ROM

pins 2 & 3 closed

Closed

PCI IRQ CONFIGURATION (INT A)

IRQ

JP14

IRQ5

pins 1 & 2 closed

IRQ9

pins 3 & 4 closed

IRQ10

pins 5 & 6 closed

PCI IRQ CONFIGURATION (INT B)

IRQ

JP14

IRQ11

pins 7 & 8 closed

IRQ12

pins 9 & 10 closed

PCI IRQ CONFIGURATION (INT C)

IRQ

JP14

IRQ14

pins 11 & 12 closed

IRQ15

pins 13 & 14 closed

PCI IRQ CONFIGURATION (INT D)

Interrupt

JP14

INT4J

pins 17 & 18 closed