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DX-6800K

AMPTRON INTERNATIONAL, INC.

DX-6800K

Processor

80486SX/80487SX/80486DX/CX486DX2/80486DX2/80486DX4

Processor Speed

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

Chip Set

UMC

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

220mm x 220mm

I/O Options

32-bit VESA local bus slots (3)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J3

Power LED & keylock

J8

Reset switch

J4

32-bit VESA Local bus slot

S1

Turbo switch

J5

32-bit VESA Local bus slot

S2

Turbo LED

J6

32-bit VESA Local bus slot

S3

Speaker

J7

 

 

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CMOS memory normal operation

JP1

Open

 

CMOS memory clear

JP1

Closed

Address strobe operation normal

JP7

pins 1 & 2 closed

 

Address strobe delay

JP7

pins 2 & 3 closed

Graphic controller Weitek Power 9000 not installed

JP19

pins 1 & 2 closed

 

Graphic controller Weitek Power 9000 installed

JP19

pins 2 & 3 closed

Factory configured - do not alter

JP20

Open

Double sided (double RAS) SIMM module installed

JP21 & JP22

pins 1 & 2 closed

 

16M x 36 (four RAS) SIMM module installed

JP21 & JP22

pins 2 & 3 closed

Factory configured - do not alter

JP24

Open

Note:16M x 36 can only be installed in bank 0.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 256K x 36

(1) 256K x 36

NONE

NONE

2MB

(1) 512K x 36

NONE

NONE

NONE

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

(1) 512K x 36

(1) 512K x 36

NONE

NONE

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 256K x 36

(1) 1M x 36

NONE

NONE

6MB

(1) 512K x 36

(1) 1M x 36

NONE

NONE

6MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

NONE

7MB

(1) 256K x 36

(1) 512K x 36

(1) 1M x 36

NONE

7MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 2M x 36

NONE

NONE

NONE

9MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

NONE

9MB

(1) 2M x 36

(1) 256K x 36

NONE

NONE

10MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

 

13MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 2M x 36

(1) 2M x 36

NONE

NONE

16MB

(1) 4M x 36

NONE

NONE

NONE

17MB

(1) 4M x 36

(1) 256K x 36

NONE

NONE

18MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

NONE

19MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

20MB

(1) 4M x 36

(1) 1M x 36

NONE

NONE

21MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

NONE

22MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

(1) 8M x 36

NONE

NONE

NONE

DRAM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

33MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

NONE

33MB

(1) 8M x 36

(1) 256K x 36

NONE

NONE

34MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

34MB

(1) 8M x 36

(1) 512K x 36

NONE

NONE

36MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

NONE

36MB

(1) 8M x 36

(1) 1M x 36

NONE

NONE

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

64MB

(1) 16M x 36

NONE

NONE

NONE

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

CPU TYPE CONFIGURATION

Type

JP15

JP16

JP17

486SX

pins 2 & 3 closed

Open

Open

487SX

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

Open

486DX

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

Open

Cx486DX2

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

Closed

486DX2

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

Open

486DX4

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

Open

CPU SPEED CONFIGURATION

CPU clock

CPU frequency

JP8

JP9

JP10

25MHz

25, 50I, 75iMHz

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

33MHz

33, 66I, 100iMHz

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

40MHz

40MHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

50MHz

50, 100iMHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

CPU VOLTAGE CONFIGURATION

Select

P1

P2

P3

5V (for all other CPUs

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

3.3V (for 80486DX4)

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

80486DX4 CONFIGURATION

CPU Clock

Multiplier

Frequency

JP18

25MHz

3

75iMHz

Open

33MHz

3

100iMHz

Open

50MHz

2

100iMHz

pins 2 & 3 closed

Note:If using a CPU other than a 80486DX4, the settings for JP18 are do not matter.

CACHE JUMPER CONFIGURATION

Size

JP2

JP3

JP4

JP5

JP6

64KB

pins 1 & 2

pins 1 & 2

Open

Open

Closed

128KB

pins 2 & 3

pins 2 & 3

Open

Closed

Closed

256KB

pins 1 & 2

pins 1 & 2

Closed

Closed

Closed

VESA CPU TYPE (ID0 & ID1) CONFIGURATION

CPU speed

JP13 (ID2)

JP14 (ID3)

< or = 33MHz

Closed

Open

> 33MHz

Open

Closed