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EXP4044

DATAEXPERT CORPORATION

EXP4044

Device Type

Mainboard

Processor

CXM6/80486SX/CXM7/AM486DX/AM486DXL/80486DX2/80486DX4/

P24T

Processor Speed

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

Chip Set

OPTI

Maximum Onboard Memory

64MB

Cache

64/128/256KB

BIOS

Award

Dimensions

254mm x 218mm

I/O Options

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

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J1

Turbo LED

JP2

Speaker

J2

Green PC connector

JP20

Reset switch

J3

Turbo switch

JP35

External battery

J4

32-bit VESA local bus slots

SL1 SL3

USER CONFIGURABLE SETTINGS

Function

Label

Position

Monitor type select color

JP32

Closed

 

Monitor type select monochrome

JP32

Open

CMOS memory normal operation

JP33

Pins 2 & 3 closed

 

CMOS memory clear

JP33

Pins 1 & 2 closed

L2 write through

JP34

Pins 2 & 3 closed

 

L2 write back

JP34

Pins 1 & 2 closed

SIMM CONFIGURATION 1

Size

Bank 0

Bank 1

Bank 2

2MB

(4) 256K x 9

None

(1) 256K x 36

2MB

None

(1) 256K x 36

(1) 256K x 36

2MB

None

(1) 512K x 36

None

4MB

(4) 1M x 9

None

None

4MB

None

(1) 1M x 36

None

5MB

(4) 256K x 9

None

(1) 1M x 36

5MB

None

(1) 256K x 36

(1) 1M x 36

8MB

(4) 1M x 9

None

(1) 1M x 36

8MB

None

(1) 1M x 36

(1) 1M x 36

8MB

None

(1) 2M x 36

None

16MB

(4) 4M x 9

None

None

16MB

None

None

(1) 4M x 36

17MB

(4) 256K x 9

None

(1) 4M x 36

17MB

None

(1) 256K x 36

(1) 4M x 36

20MB

(4) 1M x 9

None

(1) 4M x 36

20MB

None

(1) 1M x 36

(1) 4M x 36

32MB

(4) 4M x 9

None

(1) 4M x 36

32MB

None

(1) 4M x 36

(1) 4M x 36

32MB

None

(1) 8M x 36

None

64MB

(4) 16M x 9

None

None

SIMM CONFIGURATION 2

Size

Bank 0

Bank 1

Bank 2

2MB

None

(1) 512K x 36

None

4MB

(4) 1M x 9

None

None

4MB

None

(1) 512K x 36

(1) 512K x 36

8MB

None

(1) 2M x 36

None

10MB

None

(1) 512K x 36

(1) 2M x 36

16MB

(4) 4M x 9

None

None

16MB

None

(1) 2M x 36

(1) 2M x 36

32MB

None

(1) 8M x 36

None

64MB

(4) 16M x 9

None

None

64MB

None

(1) 8M x 36

(1) 8M x 36

SIMM JUMPER CONFIGURATION

Configuration

JP41

1

Pins 2 & 3 closed

 

2

Pins 1 & 2 closed

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) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP13

JP27

JP28

JP29

64KB

Pins 2 & 3 closed

Pins 1 & 2 closed

Open

Open

128KB

Pins 1 & 2 closed

Pins 1 & 2 closed

Open

Closed

256KB

Pins 2 & 3 closed

Pins 1 & 2 closed

Closed

Closed

CPU SPEED SELECTION

Speed

JP3

JP4

JP17

25MHz

Closed

Closed

Open

33MHz

Closed

Open

Closed

40MHz

Open

Closed

Closed

50iMHz

Closed

Closed

Open

50MHz

Closed

Closed

Closed

66iMHz

Closed

Open

Closed

75iMHz

Closed

Closed

Open

100iMHz

Closed

Open

Closed

CPU TYPE SELECTION

Type

JP5

JP6

JP8

JP19

JP24

JP39

JP43

CX M6

2 & 3

Open

Open

1 & 2

1 & 2

1 & 2

Open

80486SX

2 & 3

Open

Open

1 & 2

Open

2 & 3

Open

AM486DX

1 & 2

2 & 3

1 & 2

1 & 2

Open

2 & 3

Open

AM486DXL

1 & 2

2 & 3

1 & 2

1 & 2

Open

2 & 3

Open

80486DX

1 & 2

2 & 3

1 & 2

1 & 2

Open

2 & 3

Open

80486DX4

1 & 2

2 & 3

1 & 2

1 & 2

Open

2 & 3

Closed

P24T

1 & 2

2 & 3

1 & 2

2 & 3

2 & 3

2 & 3

Open

CX M7

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

1 & 2

Open

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (PQFP ONLY)

Setting

JP11

JP12

JP25

 

Enabled

Open

Open

Closed

Disabled

Closed

Closed

Open

CPU MULTIPLIER SELECTION (80486DX4 ONLY)

Multiplier

JP36

JP37

JP38

2x

Open

Closed

Open

2.5x

Open

Open

Closed

3x

Closed

Open

Open

CPU VOLTAGE SELECTION

Voltage

JP44

JP45

JP46

 

3.3v

Open

Closed

Pins 1 & 2 closed

6v

Closed

Open

Pins 2 & 3 closed

VL BUS SPEED SELECTION

Speed

JP40

<= 33MHz

Pins 2 & 3 closed

 

>33 MHz

Pins 1 & 2 closed

GREEN PC SELECTION

Setting

JP9

JP10

 

Enabled

Closed

Closed

Disabled

Open

Open