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DX-6900 VER. 1.75

AMPTRON INTERNATIONAL, INC.

DX-6900 VER. 1.75

Processor

AM486SX/80486SX/CX486DX/AM486DX/IBM486DX/TI486DX/80486DX/ SL80486DX/CX486DX2/AM486DX2/IBM486DX2/TI486DX2/80486DX2/ SL80486DX2/CX486DX4/AM486DX4/IBM486DX4/80486DX4/AM5X86

Processor Speed

25/33/40/50(internal)/50/66(internal)/80(internal)/100(internal)/120(internal)/133(internal)MHz

Chip Set

Unidentified

Max. Onboard DRAM

64MB

Cache

64/128/256/512/1024KB

BIOS

AMI

Dimensions

254mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP1

Reset switch

JP20

Power LED & keylock

JP15

Turbo switch

JP22

Speaker

JP18

Green PC connector

JP23

Turbo LED

JP19

32-bit VESA local bus slots

SL1 - SL3

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

 

Battery type select internal

JP1

Pins 2 & 3 closed

 

Battery type select external

JP1

Closed

 

CMOS memory clear

JP1

Pins 3 & 4 closed

Ľ

Factory configured - do not alter

JP2

Pins 2 & 3 closed

Ľ

Factory configured - do not alter

JP3

Open

Ľ

Factory configured - do not alter

JP36

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

1MB

(4) 256K x 9

None

None

1MB

None

(1) 256K x 36

None

2MB

(4) 256K x 9

(1) 256K x 36

None

2MB

None

(1) 512K x 36

None

2MB

None

(1) 256K x 36

(1) 256K x 36

3MB

(4) 256K x 9

(1) 256K x 36

(1) 256K x 36

3MB

None

(1) 512K x 36

(1) 256K x 36

3MB

None

(1) 256K x 36

(1) 512K x 36

4MB

(4) 1M x 9

None

None

4MB

None

(1) 512K x 36

(1) 512K x 36

4MB

None

(1) 1M x 36

None

5MB

(4) 1M x 9

(1) 256K x 36

None

5MB

None

(1) 256K x 36

(1) 1M x 36

5MB

None

(1) 1M x 36

(1) 256K x 36

6MB

(4) 256K x 9

(1) 256K x 36

(1) 1M x 36

6MB

(4) 1M x 9

(1) 256K x 36

(1) 256K x 36

6MB

None

(1) 512K x 36

(1) 1M x 36

6MB

None

(1) 1M x 36

(1) 512K x 36

8MB

None

(1) 1M x 36

(1) 1M x 36

8MB

None

(1) 2M x 36

None

9MB

(4) 1M x 9

(1) 256K x 36

(1) 1M x 36

9MB

None

(1) 256K x 36

(1) 2M x 36

9MB

None

(1) 2M x 36

(1) 256K x 36

10MB

None

(1) 512K x 36

(1) 2M x 36

10MB

None

(1) 2M x 36

(1) 512K x 36

12MB

None

(1) 1M x 36

(1) 2M x 36

12MB

None

(1) 2M x 36

(1) 1M x 36

16MB

(4) 4M x 9

None

None

16MB

None

(1) 4M x 36

None

16MB

None

(1) 2M x 36

(1) 2M x 36

17MB

(1) 4M x 36

(1) 256K x 36

None

17MB

None

(1) 256K x 36

(1) 4M x 36

17MB

None

(1) 4M x 36

(1) 256K x 36

18MB

(4) 256K x 9

(1) 256K x 36

(1) 4M x 36

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

18MB

(4) 4M x 9

(1) 256K x 36

(1) 256K x 36

18MB

None

(1) 512K x 36

(1) 4M x 36

18MB

None

(1) 4M x 36

(1) 512K x 36

20MB

None

(1) 1M x 36

(1) 4M x 36

20MB

None

(1) 4M x 36

(1) 1M x 36

21MB

(4) 1M x 9

(1) 256K x 36

(1) 4M x 36

21MB

(4) 4M x 9

(1) 256K x 36

(1) 1M x 36

24MB

None

(1) 4M x 36

(1) 2M x 36

24MB

None

(1) 2M x 36

(1) 4M x 36

32MB

None

(1) 8M x 36

None

32MB

None

(1) 4M x 36

(1) 4M x 36

33MB

(4) 4M x 9

(1) 256K x 36

(1) 4M x 36

33MB

None

(1) 256K x 36

(1) 8M x 36

33MB

None

(1) 8M x 36

(1) 256K x 36

34MB

None

(1) 512K x 36

(1) 8M x 36

34MB

None

(1) 8M x 36

(1) 512K x 36

36MB

None

(1) 1M x 36

(1) 8M x 36

36MB

None

(1) 8M x 36

(1) 1M x 36

40MB

None

(1) 8M x 36

(1) 2M x 36

40MB

None

(1) 2M x 36

(1) 8M x 36

48MB

None

(1) 8M x 36

(1) 4M x 36

48MB

None

(1) 4M x 36

(1) 8M x 36

64MB

(4) 16M x 9

None

None

64MB

None

(1) 16M x 36

None

64MB

None

(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 (A)

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

256KB (B)

(4) 64K x 8

None

(1) 32K x 8

512KB (A)

(4) 64K x 8

(4) 64K x 8

(1) 32K x 8

512KB (B)

(4) 128K x 8

None

(1) 32K x 8

1MB

(4) 128K x 8

(4) 128K x 8

(1) 64K x 8

CACHE JUMPER CONFIGURATION

Size

JP5

JP10

JP11

JP12

JP13

JP14

64KB

2 & 3

2 & 3

Open

Open

Open

Open

128KB

1 & 2

1 & 2

Open

Open

Open

Closed

256KB (A)

2 & 3

2 & 3

Open

Open

Closed

Closed

256KB (B)

1 & 2, 3 & 4

1 & 2

Open

Open

Closed

Closed

512KB (A)

2 & 3, 4 & 5

2 & 3

Open

Closed

Closed

Closed

512KB (B)

1 & 2, 3 & 4, 5 & 6

1 & 2

Open

Closed

Closed

Closed

1MB

2 & 3, 4 & 5, 6 & 7

2 & 3

Closed

Closed

Closed

Closed

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP27

JP28

JP29

JP30

AM486SX

Open

2 & 3

Open

Open

80486SX

Open

2 & 3

Open

Open

CX486DX

2 & 3

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

2 & 3, 4 & 5

AM486DX

Open

2 & 3

Open

Open

IBM486DX

2 & 3

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

2 & 3, 4 & 5

TI486DX

2 & 3

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

2 & 3, 4 & 5

80486DX

Open

2 & 3

Open

Open

SL80486DX

1 & 2, 3 & 4

1 & 2

1 & 2

5 & 6

CX486DX2

2 & 3

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

2 & 3, 4 & 5

CX486DX2-V80

2 & 3

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

2 & 3, 4 & 5

AM486DX2

Open

2 & 3

Open

Open

AM486DX2(3.3v)

Open

2 & 3

Open

Open

IBM486DX2

2 & 3

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

2 & 3, 4 & 5

TI486DX2

2 & 3

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

2 & 3, 4 & 5

80486DX2

Open

2 & 3

Open

Open

SL80486DX2

1 & 2, 3 & 4

1 & 2

1 & 2

5 & 6

CX486DX4-GP

2 & 3

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

2 & 3, 4 & 5

CX486DX4-GP4

1 & 2, 3 & 4

1 & 2, 4 & 5

1 & 2, 4 & 5

3 & 4, 5 & 6

AM486DX4 (3.3v)

Open

2 & 3

Open

Open

AM486DX4 (8B)

1 & 2, 3 & 4

1 & 2, 4 & 5

1 & 2, 4 & 5

3 & 4, 5 & 6

IBM486DX4-GC

2 & 3

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

2 & 3, 4 & 5

IBM486DX4-GIC

1 & 2, 3 & 4

1 & 2, 4 & 5

1 & 2, 4 & 5

3 & 4, 5 & 6

80486DX4

1 & 2, 3 & 4

1 & 2

1 & 2

5 & 6

AM5X86-133

1 & 2, 3 & 4

1 & 2, 4 & 5

1 & 2, 4 & 5

3 & 4, 5 & 6

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONíT)

Type

JP31

JP32

JP33

JP34

JP35

AM486SX

Open

Open

2 & 3

Closed

Closed

80486SX

Open

Open

2 & 3

Closed

Closed

CX486DX

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

AM486DX

Open

1 & 2

1 & 2, 3 & 4

Closed

Closed

IBM486DX

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

TI486DX

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

80486DX

Open

1 & 2

1 & 2, 3 & 4

Closed

Closed

SL80486DX

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

CX486DX2

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

CX486DX2-V80

Open

1 & 2

1 & 2, 3 & 4

Open

Open

AM486DX2

Open

1 & 2

1 & 2, 3 & 4

Closed

Closed

AM486DX2(3.3v)

Open

1 & 2

1 & 2, 3 & 4

Closed

Closed

IBM486DX2

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

TI486DX2

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

80486DX2

Open

1 & 2

1 & 2, 3 & 4

Closed

Closed

SL80486DX2

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

CX486DX4-GP

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

CX486DX4-GP4

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

AM486DX4 (3.3v)

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

AM486DX4 (8B)

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

IBM486DX4-GC

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

IBM486DX4-GIC

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

80486DX4

Open

1 & 2

1 & 2, 3 & 4

Open

Closed

AM5X86-133

2 & 3

1 & 2

1 & 2, 3 & 4

Open

Closed

Note: Pins designated should be in the closed position.

CPU VOLTAGE CONFIGURATION

Voltage

JP24

JP25

JP26

3.3v

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

4v

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

5v

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

CPU SPEED CONFIGURATION

Speed

JP6

JP7

JP8

25MHz

Open

Open

Closed

33MHz

Closed

Closed

Closed

40MHz

Open

Closed

Closed

50iMHz

Open

Open

Closed

50MHz

Closed

Open

Open

66iMHz

Closed

Closed

Closed

80iMHz

Open

Closed

Closed

100iMHz

Closed

Closed

Closed

120iMHz

Open

Closed

Closed

133iMHz

Closed

Closed

Closed

VL BUS WAIT STATE CONFIGURATION

Wait states

JP17

0 wait states

Open

1 wait state

Closed

Note: The location of JP17 is unidentified.

VL BUS SPEED CONFIGURATION

CPU speed

JP16

<= 33MHz

Open

> 33MHz

Closed